Publications by authors named "David Figueroa"

Nitrogen limitations in the grape must be the main cause of stuck fermentations during the winemaking process. In , a genetic segment known as region A, which harbors 12 protein-coding genes, was acquired horizontally from a phylogenetically distant yeast species. This region is mainly present in the genome of wine yeast strains, carrying genes that have been associated with nitrogen utilization.

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Unicompartmental knee arthroplasty (UKA) faces significant challenges, including lower survival rates and higher revision rates than total knee arthroplasty (TKA). To address these issues, technological advancements like custom-made implants (CMI), patient-specific alignment (PSA), and computer-assisted systems (CAS) are being explored. These innovations aim to tailor procedures to individual joint morphology, soft tissue balance, and limb alignment, moving away from the traditional "one size fits all" approach.

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Article Synopsis
  • Multi-ligament knee injuries (MLKIs) are complex and rare, often accompanied by meniscal tears, which are crucial for effective orthopedic treatment.
  • This study analyzed the occurrence and classification of meniscal injuries in MLKI patients who underwent reconstructive surgery between 2013 and 2023, using MRI and surgical reports for data collection.
  • Out of 70 patients studied, 67.1% had meniscal lesions, with the anterior cruciate ligament and medial collateral ligament being the most commonly injured ligaments.
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Prior literature suggests that patellofemoral instability (PFI) is significantly more prevalent in women than in men. This higher prevalence is commonly attributed to anatomical differences between sexes, particularly with patellofemoral alignment. These differences encompass a higher rate of trochlear dysplasia (TD), patella alta, an increased Q angle, and soft tissue imbalances.

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Although the association between objective markers of low socioeconomic status (SES) and poor health is well established, one underexamined possibility is that over and above objective SES, social class stigma-experiences and anticipation of discrimination based on social class-might undermine people's ability to engage in healthy behaviors. Participants (N = 2022) were recruited between December 2019 and January 2020 via a national Qualtrics panel that was census-matched to the U.S.

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Objective: Although 82% of American adults have a body mass index (BMI) of over 25, individuals with elevated BMI are considered difficult to recruit for studies. Effective participant identification and recruitment are crucial to minimize the likelihood of sampling bias. One understudied factor that could lead to sampling bias is the study information presented in recruitment materials.

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Importance: Return to sport (RTS) is considered an indicator of successful recovery after anterior cruciate ligament reconstruction (ACLR). In recent years, there has been major interest in documenting RTS following anterior cruciate ligament (ACL) injury. Despite women being at increased risk for ACL injuries and a global increase in women's participation in sports, research has not adequately focused on female athletes.

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The number of older adults living alone is rapidly increasing. Loneliness in older adults not only degrade their quality of life but also causes troubles such as heavy burden on the medical staff, especially when cognitive decline is present. Social robots could be used in several ways to reduce such problems.

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Objective: Assess the prevalence of self-reported burnout and identify risk and protective factors based on demographic and life quality aspects, among Latin American orthopaedic surgeons.

Methods: This study employed a cross-sectional analytical design. An original design survey was developed using multiple-choice and Likert-scale questions to gather self-reported burnout, demographic, work-related, social, personal, and mood-related data.

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Unlabelled: In recent years, there has been considerable interest in mAb-based induction of costimulatory receptor signaling as an approach to combat cancer. However, promising nonclinical data have yet to translate to a meaningful clinical benefit. Inducible T-cell costimulator (ICOS) is a costimulatory receptor important for immune responses.

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Article Synopsis
  • Early results from robotic-arm-assisted total knee arthroplasty (TKA) show promise, but most studies are from high-income countries, with limited data from Latin America.
  • This study involved 181 patients with knee osteoarthritis, comparing outcomes from 111 conventional TKA and 70 robotic-arm-assisted TKA surgeries performed by the same surgical team.
  • Results indicated that robotic-arm-assisted TKA led to lower opioid use and faster ambulation recovery, although surgical times were longer and there were no differences in total complications or other clinical outcomes.
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Article Synopsis
  • - Olfactory dysfunction is a common issue in elderly people and can signal neurodegenerative diseases like Alzheimer's and Parkinson's, but it's also found in typical aging, making it crucial to study its roots in non-pathological aging.
  • - In a study with C57BL/6J mice, researchers found that the ability to distinguish odors declined the most as mice aged, while general odor detection and sensitivity also decreased, but their ability to get used to smells (habituation) stayed intact.
  • - The aging process in mice was linked to increased signs of oxidative stress, inflammation, and DNA damage in the olfactory bulb, while boosting NAD levels showed promise in enhancing their olfactory function and overall health.
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Background: Magnetic resonance imaging (MRI) has shown limited diagnostic accuracy for multiple ligament knee injuries (MLKIs), especially posterolateral corner (PLC) injuries.

Hypothesis: The diagnostic accuracy of MRI for MLKIs will only be moderate for some knee structures. Patient-related factors and injury patterns could modify the diagnostic accuracy of MRI.

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Quinones are attractive pharmacological scaffolds for developing new agents for the treatment of different transmissible and non-transmissible human diseases due to their capacity to alter the cell redox homeostasis. The bioactivity and potential mode of action of 19 p-quinone derivatives fused to different aromatic rings (carbo or heterocycles) and harboring distinct substituents were investigated in infective Trypanosoma brucei brucei. All the compounds, except for a furanequinone (EC38 μM), proved to be similarly or even more potent (EC = 0.

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In the budding yeast , the FUN-LOV (FUNgal Light Oxygen and Voltage) optogenetic switch enables high levels of light-activated gene expression in a reversible and tunable fashion. The FUN-LOV components, under identical promoter and terminator sequences, are encoded in two different plasmids, which limits its future applications in wild and industrial yeast strains. In this work, we aim to expand the molecular versatility of the FUN-LOV switch to increase its biotechnological applications.

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Computer navigation (CN) for anterior cruciate ligament (ACL) surgery has been used mainly for two purposes: to enhance the accuracy of tunnel position and to evaluate the kinematics of the ACL reconstruction (ACLR) and the stability achieved by different surgical techniques. Many studies have shown that navigation may improve the accuracy of anatomical tunnel orientation and position during ACL reconstructive surgery compared with normal arthroscopic tunnel placement, especially regarding the femoral side. At the same time, it has become the gold-standard method for intraoperative knee kinematic assessment, as it permits a quantitative multidirectional knee joint laxity evaluation.

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Introduction: Many factors can affect the return to pivoting sports, after an Anterior Cruciate Ligament Reconstruction. Prehabilitation, rehabilitation, surgical and psychological aspects play an essential role in the decision to return to sports. The purpose of this study is to reach an international consensus about the best conditions for returning to sports in soccer-one of the most demanding level I pivoting sports after anterior cruciate ligament (ACL) reconstruction.

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Because septic arthritis after anterior cruciate ligament reconstruction is an uncommon complication, information on prevention strategies has not been extensively studied. Recommendations that can be made from the available evidence are as follows: (1) prophylactic intravenous antibiotics should be given preoperatively; (2) patellar tendon autograft use decreases the possibility of a postoperative infection; and (3) vancomycin presoaking of grafts is strongly recommended, especially when performing hamstring autograft anterior cruciate ligament reconstruction. When septic arthritis presents after anterior cruciate ligament reconstruction, early management is crucial to allow a satisfactory outcome.

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A pseudo-three-component synthesis of -aroylmethylimidazoles 3 with three new C-N bonds formed regioselectively under microwave conditions was developed. Products were obtained by reacting two equivalents of aroylmethyl bromide (ArCOCHBr, ) with the appropriate amidine salt (RCNH.HX, ) and with KCO as a base in acetonitrile.

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: Vancomycin presoaking of the graft has been shown to decrease infection rates in some case series of anterior cruciate ligament (ACL) reconstruction. : We sought to substantiate the efficacy of vancomycin presoaked grafts for the prevention of infection after ACL reconstruction. : We performed a systematic review of Medline and OVID to assess the incidence of postoperative infection in studies comparing patients undergoing ACL reconstruction with the use of vancomycin presoaked ACL grafts and a control group of patients undergoing ACL reconstruction without the use of presoaked grafts.

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Adoptive T cell therapy with T cells expressing affinity-enhanced TCRs has shown promising results in phase 1/2 clinical trials for solid and hematological tumors. However, depth and durability of responses to adoptive T cell therapy can suffer from an inhibitory tumor microenvironment. A common immune-suppressive agent is TGF-β, which is secreted by tumor cells and cells recruited to the tumor.

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Purpose: To present the clinical and imaging results of a series of patients undergoing anterior cruciate ligament reconstruction with vancomycin presoaking of the hamstring autograft compared with patients in the immediate period prior, when no vancomycin was used.

Methods: This was a retrospective sequential series of patients with anterior cruciate ligament reconstruction using either a graft protocol with no vancomycin presoaking (group 1, January 2013 to October 2015) or a graft protocol with vancomycin presoaking (group 2, November 2015 to December 2018). Lysholm and International Knee Documentation Committee scores were obtained at a minimum 24-month follow-up.

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Limited knowledge of the anatomy and biomechanics of the posterolateral corner (PLC) of the knee, coupled with poor patient outcomes with non-operative management, resulted in the PLC often being labelled as the 'dark side' of the knee. In the last two decades, extensive research has resulted in a better understanding of the anatomy and function of the PLC, and has led to the development of anatomic reconstructions that have resulted in improved patient outcomes.Despite considerable attention in the clinical orthopaedic literature (nearly 400 articles published in the last decade), a standardized algorithm for the diagnosis and treatment of the PLC is still lacking, and much controversy remains.

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Oxford unicompartmental knee arthroplasty has been used as a good alternative for medial unicompartmental osteoarthritis due to its association with early rehabilitation and a low rate of intraoperative complications. This case describes a rare complication during the procedure of an intraoperative fracture of the medial condyle that was treated with osteosynthesis with 6.5 mm cannulated screws and a compression technique.

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