Publications by authors named "Felix M"

The University of Kentucky's Drug Quality Task Force (DQTF) conducted a study to perform consumer-level quality assurance screening of vasopressin injections used in their healthcare pharmacies. The primary objective was to identify potential quality defects by examining intralot and interlot variability using Raman spectrometry and statistical analyses. Raman spectra were collected noninvasively and nondestructively from vasopressin vials (n=51) using a Thermo Scientific Smartraman DXR3 Analyzer.

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  • Beta-lactam allergy is a significant public health concern, especially among Brazilian children and adolescents, and this study aims to evaluate the safety of direct Oral Provocation Tests (OPT) for this group.
  • A cross-sectional study involved 54 children aged 1 to 17 with mild reactions to penicillin, using amoxicillin for the testing, and employed statistical methods to analyze results.
  • The findings indicated that over 90% of participants were no longer considered allergic, with only a 7.5% positivity rate for the tests, and no serious reactions were reported, suggesting that the OPT is safe but calling for further research on its duration.
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Background: A comprehensive medication review (CMR) is an annual service offered to eligible Medicare Part D beneficiaries as a component of the Medication Therapy Management program. However, little is known about the most meaningful aspect of CMRs from the patient's perspective. This information is necessary to help improve the service.

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  • A challenging case involved a 31-year-old female intravenous drug user who presented with severe symptoms, including fever and shortness of breath, and was diagnosed with high-grade MSSA bacteremia and multiple pulmonary emboli.
  • Despite having significant heart complications like a large vegetation on the pulmonic valve, the patient was treated without valve replacement and was closely monitored with follow-up care and additional medications.
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The development of precise and efficient detection methods is essential for the real-time monitoring of antibiotics, especially in environmental and biological matrices. This study aims to address this challenge by introducing a novel electrochemical sensor for the targeted detection of moxifloxacin hydrochloride (MFN), a fourth-generation fluoroquinolone. The sensor is based on a holmium niobate (HNO) and functionalized carbon nanofiber (f-CNF) nanocomposite, synthesized via a hydrothermal approach and subsequently characterized for its structural and electrochemical properties.

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The establishment of reproductive barriers such as postzygotic ybrid ncompatibility (HI) remains the key to speciation. Gene duplication followed by differential functionalization has long been proposed as a major model underlying HI, but little supporting evidence exists. Here, we demonstrate that a newborn F-box gene, , of the nematode specifically inactivates an essential phosphoglucomutase encoded by in its sister species and their hybrids.

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Intracytoplasmic sperm injection (ICSI) is a valuable assisted reproduction technology in clinical practice, especially when semen availability is limited. Since the number of sperm required per ICSI cycle is much less than the number of sperm available in a standard straw of frozen semen, refreezing semen at lower sperm concentrations could yield multiple straws for ICSI use. However, there is little data on the effect of sperm refreezing on ICSI outcomes, especially on the effect of extender used for refreezing.

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Transposable elements (TEs) can alter host gene structure and expression, whereas host organisms develop mechanisms to repress TE activities. In the nematode , a small interfering RNA pathway dependent on the helicase ERI-6/7 primarily silences retrotransposons and recent genes of likely viral origin. By studying gene expression variation among wild strains, we found that structural variants and transposon remnants likely underlie expression variation in and the pathway targets.

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Orthognathic surgery affects both function and aesthetics. An important aesthetic complication is the nasal alteration that can result from Le Fort I osteotomy. A common method for countering this complication is the alar base cinch suture technique.

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Background: Compared with conventional cigarettes, electronic cigarettes are less harmful in some studies. However, recent research may indicate the opposite. This study aimed to determine whether e-cigarette use is related to myocardial health in adults in the U.

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African wild dogs (Lycaon pictus) are unique among canids in their specialized hunting strategies and social organization. Unlike other, more omnivorous canids, L. pictus is a hypercarnivore that consumes almost exclusively meat, particularly prey larger than its body size, which it hunts through cooperative, exhaustive predation tactics.

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Background: Progressive disseminated histoplasmosis is a significant issue in Latin America, particularly in Brazil, contributing to high mortality rates.

Objectives: Our objectives were to comprehensively describe histoplasmosis treatment with various amphotericin B (AmB) formulations, including mortality rates, adverse effects and risk factors for mortality.

Methods: This multicentre retrospective cohort study (January 2014-December 2019) evaluated medical records of patients with proven or probable histoplasmosis treated with at least two doses of AmB in seven tertiary medical centres in Brazil.

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  • Monoclonal antibodies (mAb) and other biological drugs suffer from stability issues due to enzymatic degradation of polysorbate (PS), a critical surfactant used in their formulation.
  • Researchers used advanced liquid chromatography-tandem mass spectrometry to identify 12 potential PS-degrading enzymes, highlighting the role of lipoprotein lipase (LPL) in this degradation process.
  • The study established a risk matrix identifying specific hydrolases, which may help improve biopharmaceutical stability and reduce PS degradation during drug development.
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A woman in her 60s with a past medical history of recurrent  (. ) presented for surgical consultation after a colonoscopy revealed a mass in the rectum. Preoperative biopsy revealed mucosal excrescence with no dysplasia or malignant changes.

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Seaweed, a diverse and abundant marine resource, holds promise as a renewable feedstock for bioplastics due to its polysaccharide-rich composition. This review explores different methods for extracting and processing seaweed polysaccharides, focusing on the production of alginate plastic materials. Seaweed emerges as a promising solution, due to its abundance, minimal environmental impact, and diverse industrial applications, such as feed and food, plant and soil nutrition, nutraceutical hydrocolloids, personal care, and bioplastics.

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Rickettsiales are obligate intracellular bacteria that need vertebrates and arthropods to maintain their life cycles. Some species of the genera Anaplasma, Ehrlichia, and Rickettsia are transmitted by ticks to both animals and humans and can cause mild to severe and even fatal cases. In the Americas, there is substantial data on rickettsial agents, encompassing both clinical cases and the detection of these agents in ticks, but in Ecuador, the information about them remains poorly understood.

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  • The discovery of the Orsay virus (OrV) in wild Caenorhabditis elegans has sparked new research into viral immunity in these nematodes, highlighting their potential as a model for virus evolution studies.
  • This study conducted evolutionary experiments on two different strains of OrV, revealing variations in infectivity and the necessity of normalizing viral doses for accurate comparisons.
  • After 10 rounds of evolution, researchers noted subtle changes in viral infectivity and the emergence of minor genetic variants, emphasizing the complexity of viral evolution within this host-pathogen system.
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  • Antagonistic relationships, like those between hosts and viruses, can drive rapid evolution; the Orsay virus is unique for infecting C. elegans, while several RNA viruses infect its close relative C. briggsae.
  • Different strains of C. briggsae show varying sensitivity to the Santeuil (SANTV) and Le Blanc (LEBV) viruses, with temperate strains typically being sensitive and tropical strains resistant; some strains exhibit specific resistances to particular viruses.
  • Researchers are mapping genomic regions that contribute to viral resistance using a genetic approach, identifying key Quantitative Trait Loci (QTLs) on specific chromosomes, which aids in understanding viral interaction and host responses.
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Objective: Depression has become an important global public health problem. Despite the government's efforts, the outlook regarding the health issue of elderly depression in China is still not optimistic. This study explored the association between social activities and depressive symptoms among Chinese urban and rural elderly.

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A total of 55 food and clinical . Schwarzengrund isolates were assayed for plasmid content, among which an IncFIB-IncFIC(FII) fusion plasmid, conferring streptomycin resistance, was detected in 17 isolates. Among the 17 isolates, 9 were food isolates primarily collected from poultry meat, and 8 clinical isolates collected from stool, urine, and gallbladder.

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Chlorothiazide sodium for injection, USP, is a diuretic and antihypertensive medication in the form of a white or practically white, sterile, lyophilized powder. Each vial contains 500 mg of chlorothiazide sodium, equivalent to 500 mg of chlorothiazide, and 250 mg of mannitol as an inactive ingredient. The pH is adjusted with sodium hydroxide.

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Canine tick-borne diseases, such as babesiosis, rangeliosis, hepatozoonosis, anaplasmosis and ehrlichiosis, are of veterinarian relevance, causing mild or severe clinical cases that can lead to the death of the dog. The aim of this study was detecting tick-borne protozoan and rickettsial infections in dogs with anemia and/or thrombocytopenia in Uruguay. A total of 803 domestic dogs were evaluated, and 10% were found positive (detected by PCR) at least for one hemoparasite.

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A 72-year-old woman with a prior sigmoid resection for colon cancer underwent a right hemicolectomy after a colonoscopy revealed a mass in the hepatic flexure. A preoperative biopsy at colonoscopy showed tubulovillous dysplasia with high-grade neoplasm. The final specimen pathology revealed benign mucosal elements with mucin pools consistent with colitis cystica profunda (CCP).

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