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1.
J Burn Care Res ; 2024 Jun 29.
Artículo en Inglés | MEDLINE | ID: mdl-38943557

RESUMEN

Finding a perfect epidermal transplant remains a holy grail of burn surgery. The epidermis is a site of stem cells that allows for the epithelial regeneration. The use of CEA for the treatment of major burns was first reported in 1981. CEA requires specialized skills; thus, reports from different burn-centers have shown mixed results. Comparing our modern data with past data shows how this field has advanced while maintaining institutional control. We performed a retrospective analysis of all patients admitted between 01/01/1988-12/31/2021 for massive burns that were managed with CEA. Patients were divided into pre-defined groups: G1(early-era)=1988-1999, G2(pre-modern-era)=2000-2010, and G3(modern-era)=2011-2021. We compared demographics, %TBSA, presence of inhalation-injury, LOS, complications, and mortality. We treated 52 patients with CEA during the study period. In the modern-era, we found 11 patients; in the pre-modern-era, 10; and in the early-era, 31. Injury characteristics, including %TBSA and the presence of inhalation-injury, were not significantly different between the groups. We observed lower mortality rates in G1 and G3 (G1:20% vs. G2:42% vs. G3:27%, p<0.05), although the predicted mortality was not significantly different between the groups (G1:50% vs. G2:47% vs. G3:49%, NS). Patients in G1 also had a shorter hospital LOS, in days, (G1:90 vs. G2:127 vs. G3:205, p<0.05). Finally, the surface-area grafted per patient was the highest in G2 (G1:2,000cm2 vs. G2:4,187cm2 vs. G3:4,090cm2, p<0.01). CEA has not gained popularity despite proven positive outcomes. Our retrospective analysis showed that CEA should be considered as a treatment option for patients with large burns, given proper training and infrastructure.

2.
Clin Pract Cases Emerg Med ; 8(2): 147-150, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38869339

RESUMEN

Introduction: The asp caterpillar (Megalopyge opercularis) is endemic to the southeastern United States, with most sightings in Florida, Texas, and Louisiana. A few hundred caterpillar envenomations are reported annually with most cases occurring in July-November. Asp caterpillars have hollow spines along their backs that contain venom. Contact with these spines is what produces the characteristic "sting" resulting in contact dermatitis and a localized hypersensitivity reaction collectively referred to as lepidopterism. Symptoms of lepidopterism may include severe burning pain, pruritis, edema, nausea, vomiting, abdominal pain, and headache. Symptoms are often self limited, and treatment should focus on expedited removal of implanted spines and aggressive symptom management. Case Report: We present the case of a patient presenting to the emergency department (ED) with acute-onset severe left forearm pain with associated pruritic rash incurred while working in a retail store. Initial therapeutic management included administration of analgesics, antihistamines, and steroids. After obtaining a comprehensive history and consulting with the Poison Control Center, we suspected an asp caterpillar envenomation. Following extraction of the caterpillar spines with silk tape, the patient's symptoms improved. After a period of observation in the ED, the patient was discharged home without any known sequelae. Conclusion: Although asp caterpillars typically inhabit trees and foliage, human exposure to the caterpillar may occur in developed environments. Effective history-taking, prompt communication with toxicologic experts, and complete removal of intact spines are essential for early identification and effective clinical management of asp caterpillar envenomation.

3.
J Cell Sci ; 137(12)2024 Jun 15.
Artículo en Inglés | MEDLINE | ID: mdl-38832513

RESUMEN

Division plane positioning is crucial for proper growth and development in many organisms. In plants, the division plane is established before mitosis, by accumulation of a cytoskeletal structure called the preprophase band (PPB). The PPB is thought to be essential for recruitment of division site-localized proteins, which remain at the division site after the PPB disassembles. Here, we show that the division site-localized protein TANGLED1 (TAN1) is recruited independently of the PPB to the cell cortex by the plant cytokinetic machinery, the phragmoplast, from experiments using both the PPB-defective mutant discordia1 (dcd1) and chemical treatments that disrupt the phragmoplast in maize. TAN1 recruitment to de novo sites on the cortex is partially dependent on intact actin filaments and the myosin XI motor protein OPAQUE1 (O1). These data imply a yet unknown role for TAN1 and possibly other division site-localized proteins during the last stages of cell division when the phragmoplast touches the cell cortex to complete cytokinesis.


Asunto(s)
Citocinesis , Proteínas de Plantas , Zea mays , Zea mays/metabolismo , Zea mays/genética , Proteínas de Plantas/metabolismo , Proteínas de Plantas/genética , Citoesqueleto de Actina/metabolismo
4.
Cell ; 187(13): 3373-3389.e16, 2024 Jun 20.
Artículo en Inglés | MEDLINE | ID: mdl-38906102

RESUMEN

The gut microbiota influences the clinical responses of cancer patients to immunecheckpoint inhibitors (ICIs). However, there is no consensus definition of detrimental dysbiosis. Based on metagenomics (MG) sequencing of 245 non-small cell lung cancer (NSCLC) patient feces, we constructed species-level co-abundance networks that were clustered into species-interacting groups (SIGs) correlating with overall survival. Thirty-seven and forty-five MG species (MGSs) were associated with resistance (SIG1) and response (SIG2) to ICIs, respectively. When combined with the quantification of Akkermansia species, this procedure allowed a person-based calculation of a topological score (TOPOSCORE) that was validated in an additional 254 NSCLC patients and in 216 genitourinary cancer patients. Finally, this TOPOSCORE was translated into a 21-bacterial probe set-based qPCR scoring that was validated in a prospective cohort of NSCLC patients as well as in colorectal and melanoma patients. This approach could represent a dynamic diagnosis tool for intestinal dysbiosis to guide personalized microbiota-centered interventions.


Asunto(s)
Carcinoma de Pulmón de Células no Pequeñas , Microbioma Gastrointestinal , Inmunoterapia , Neoplasias Pulmonares , Neoplasias , Femenino , Humanos , Masculino , Akkermansia , Carcinoma de Pulmón de Células no Pequeñas/microbiología , Carcinoma de Pulmón de Células no Pequeñas/tratamiento farmacológico , Carcinoma de Pulmón de Células no Pequeñas/inmunología , Disbiosis/microbiología , Heces/microbiología , Microbioma Gastrointestinal/efectos de los fármacos , Inhibidores de Puntos de Control Inmunológico/uso terapéutico , Inhibidores de Puntos de Control Inmunológico/farmacología , Inmunoterapia/métodos , Neoplasias Pulmonares/microbiología , Neoplasias Pulmonares/tratamiento farmacológico , Metagenómica/métodos , Neoplasias/microbiología , Resultado del Tratamiento
5.
Am J Vet Res ; 85(7)2024 Jul 01.
Artículo en Inglés | MEDLINE | ID: mdl-38718826

RESUMEN

OBJECTIVE: Develop a cytochrome P450 (CYP) phenotyping cocktail for dogs using specific substrates for hepatic P450 enzymes CYP2B11, CYP2D15, and CYP3A12 and determine whether alternative sampling methods (saliva and urine) or single time point samples could be used instead of multiple blood sampling. ANIMALS: 12 healthy client-owned dogs (8 females and 4 males) from February 2019 to May 2019. METHODS: In a randomized crossover study, dogs received oral administration of the probe drug bupropion (75 mg), dextromethorphan (30 mg), or omeprazole (40 mg) alone or as a 3-drug combination (Program in Individualized Medicine [PrIMe] cocktail) to evaluate simultaneous phenotyping of CYP2B11, CYP2D15, and CYP3A12. Pharmacokinetic profiles for the probe drugs and metabolites were determined using plasma, saliva, and urine. Dogs received probe drugs alone or combined. Pharmacokinetic profiles up to 6 hours postdose for the probe drugs and metabolites were determined using plasma, saliva, and urine. RESULTS: The PrIMe cocktail was well tolerated. There was no statistically significant interaction between the probe drugs when administered together. Single time point plasma metabolic ratios at 4 hours postdose for all probe drugs strongly correlated with the corresponding area under the plasma concentration-versus-time curve (AUC) ratios. Saliva AUC metabolic ratios for CYP3A12 and CYP2D15 and 6-hour urine for CYP2B11 and CYP2D15 were correlated with plasma AUC ratios. CONCLUSIONS: The PrIMe cocktail can be used for simultaneous CYP phenotyping using plasma 4-hour single time point sample metabolic ratios. Saliva and urine sampling are suitable for specific CYPs. CLINICAL RELEVANCE: The PrIMe cocktail has potential as a useful tool in dogs to detect clinically important CYP-mediated drug-drug interactions, identify novel pharmacogenes, determine the drug-metabolizing phenotype of individual dogs, aid in individualized dose selection, and evaluate the effects of various physiological states on drug metabolism.


Asunto(s)
Bupropión , Estudios Cruzados , Dextrometorfano , Omeprazol , Animales , Perros , Dextrometorfano/farmacocinética , Dextrometorfano/orina , Dextrometorfano/metabolismo , Bupropión/farmacocinética , Bupropión/metabolismo , Bupropión/sangre , Omeprazol/farmacocinética , Femenino , Masculino , Sistema Enzimático del Citocromo P-450/metabolismo , Fenotipo , Hidrocarburo de Aril Hidroxilasas/metabolismo
6.
bioRxiv ; 2024 May 05.
Artículo en Inglés | MEDLINE | ID: mdl-38746167

RESUMEN

Phthalates are a class of known endocrine disrupting chemicals that are found in common everyday products. Several studies associate phthalate exposure with detrimental effects on ovarian functions, including growth and development of the follicle and production of steroid hormones. We hypothesized that dysregulation of the ovary by phthalates may be mediated by phthalate toxicity towards granulosa cells, a major cell type in ovarian follicles responsible for key steps of hormone production and nourishing the developing oocyte. To test the hypothesis that phthalates target granulosa cells, we harvested granulosa cells from adult CD-1 mouse ovaries and cultured them for 96 hours in vehicle control, a phthalate mixture, or a phthalate metabolite mixture (0.1-100 µg/mL). After culture, we measured metabolism of the phthalate mixture into monoester metabolites by the granulosa cells, finding that granulosa cells do not significantly contribute to ovarian metabolism of phthalates. Immunohistochemistry of phthalate metabolizing enzymes in whole ovaries confirmed that these enzymes are not strongly expressed in granulosa cells of antral follicles and that ovarian metabolism of phthalates likely occurs primarily in the stroma. RNA sequencing of treated granulosa cells identified 407 differentially expressed genes, with overrepresentation of genes from lipid metabolic processes, cholesterol metabolism, and peroxisome proliferator-activated receptor (PPAR) signaling pathways. Expression of significantly differentially expressed genes related to these pathways were confirmed using qPCR. Our results agree with previous findings that phthalates and phthalate metabolites have different effects on the ovary and interfere with PPAR signaling in granulosa cells.

7.
bioRxiv ; 2024 Mar 08.
Artículo en Inglés | MEDLINE | ID: mdl-38496554

RESUMEN

Division plane positioning is critical for proper growth and development in many organisms. In plants, the division plane is established before mitosis, by accumulation of a cytoskeletal structure called the preprophase band (PPB). The PPB is thought to be essential for recruitment of division site localized proteins, which remain at the division site after the PPB disassembles. Here, we show that a division site localized protein, TANGLED1 (TAN1), is recruited independently of the PPB to the cell cortex at sites, by the plant cytokinetic machinery, the phragmoplast. TAN1 recruitment to de novo sites on the cortex is partially dependent on intact actin filaments and the myosin XI motor protein OPAQUE1 (O1). These data imply a yet unknown role for TAN1 and possibly other division site localized proteins during the last stages of cell division when the phragmoplast touches the cell cortex to complete cytokinesis.

8.
PLoS One ; 19(2): e0297191, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38300925

RESUMEN

Greyhounds metabolize cytochrome P450 (CYP) 2B11 substrates more slowly than other dog breeds. However, CYP2B11 gene variants associated with decreased CYP2B11 expression do not fully explain reduced CYP2B11 activity in this breed. P450 oxidoreductase (POR) is an essential redox partner for all CYPs. POR protein variants can enhance or repress CYP enzyme function in a CYP isoform and substrate dependent manner. The study objectives were to identify POR protein variants in greyhounds and determine their effect on coexpressed CYP2B11 and CYP2D15 enzyme function. Gene sequencing identified two missense variants (Glu315Gln and Asp570Glu) forming four alleles, POR-H1 (reference), POR-H2 (570Glu), POR-H3 (315Gln, 570Glu) and POR-H4 (315Gln). Out of 68 dog breeds surveyed, POR-H2 was widely distributed across multiple breeds, while POR-H3 was largely restricted to greyhounds and Scottish deerhounds (35% allele frequencies), and POR-H4 was rare. Three-dimensional protein structure modelling indicated significant effects of Glu315Gln (but not Asp570Glu) on protein flexibility through loss of a salt bridge between Glu315 and Arg519. Recombinant POR-H1 (reference) and each POR variant (H2-H4) were expressed alone or with CYP2B11 or CYP2D15 in insect cells. No substantial effects on POR protein expression or enzyme activity (cytochrome c reduction) were observed for any POR variant (versus POR-H1) when expressed alone or with CYP2B11 or CYP2D15. Furthermore, there were no effects on CYP2B11 or CYP2D15 protein expression, or on CYP2D15 enzyme kinetics by any POR variant (versus POR-H1). However, Vmax values for 7-benzyloxyresorufin, propofol and bupropion oxidation by CYP2B11 were significantly reduced by coexpression with POR-H3 (by 34-37%) and POR-H4 (by 65-72%) compared with POR-H1. Km values were unaffected. Our results indicate that the Glu315Gln mutation (common to POR-H3 and POR-H4) reduces CYP2B11 enzyme function without affecting at least one other major canine hepatic P450 (CYP2D15). Additional in vivo studies are warranted to confirm these findings.


Asunto(s)
Sistema Enzimático del Citocromo P-450 , Farmacogenética , Perros , Animales , Sistema Enzimático del Citocromo P-450/genética , Frecuencia de los Genes , Microsomas Hepáticos/metabolismo , Mutación , Variación Genética
9.
Int J Aging Hum Dev ; : 914150231208688, 2024 Jan 30.
Artículo en Inglés | MEDLINE | ID: mdl-38291615

RESUMEN

Using a sample of middle-aged and older adults, this research explores associations between generativity and two key risk factors for suicide: thwarted belonging (T.B.) and perceived burdensomeness (P.B.). These variables are typically studied as predictors of suicide; the current study is unique in examining their psychosocial correlates. Erikson described, generativity as a psychosocial construct that characterizes adult well-being in mid-life, conceptualized as the sense one has successfully guided and contributed to the younger generation through mentoring. Using the Midlife in the United States Survey (MIDUS), the current analyses indicate that generativity is associated with lower levels of P.B. and T.B., even after accounting for measures of hopelessness, depressive symptoms, financial stability, perceived neighborhood quality, chronic health conditions, and respondent's demographic characteristics including gender and age. Results are discussed in terms of applications for suicide-risk prevention, and with regard to the promotion of positive psychosocial development across the lifespan.

10.
J Zoo Wildl Med ; 54(4): 721-727, 2024 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-38251995

RESUMEN

A pharmacokinetic study of ceftiofur crystalline free acid sterile oil suspension (CCFA) was performed in six apparently healthy juvenile American alligators (Alligator mississippiensis). A single intramuscular dose of 30 mg/kg was administered in the triceps muscle. Blood samples were collected prior to treatment and at 4, 12, 24, 48, 72, 120, 144, 192, 288, and 366 h post administration. Plasma samples were analyzed for ceftiofur equivalent concentrations using liquid chromatography-mass spectrometry. Pharmacokinetic parameters were determined by noncompartmental analysis. Mean peak plasma concentration was 23.2 µg/ml (range, 16.0-27.9), median time to maximum concentration was 72 h (range, 72-120), mean area under the curve from 0 to 366 h postdose was 4.24 h · mg/ml (range, 3.54-4.97), and mean terminal half-life was 143 h (range, 90.8-220). Plasma concentrations were maintained above the minimum inhibitory concentration for this study of 2.0 µg/ml, which was established from similar CCFA pharmacokinetic studies in other reptilian species, through the end of the data collection of 366 h. Because of prolonged plasma concentrations, a dosing interval could not be established in this study. Future studies should include extended collection time points and multidose studies to determine dosing regimens.


Asunto(s)
Caimanes y Cocodrilos , Animales , Cefalosporinas , Recolección de Datos , Estado de Salud
11.
J Immunol ; 212(6): 1022-1028, 2024 Mar 15.
Artículo en Inglés | MEDLINE | ID: mdl-38294253

RESUMEN

Plasma cells secrete an abundance of Abs and are a crucial component of our immune system. The intestinal lamina propria harbors the largest population of plasma cells, most of which produce IgA. These Abs can bind to beneficial gut bacteria to reinforce intestinal homeostasis and provide protection against enteric pathogens. Plasma cells downregulate many cell-surface proteins commonly used to identify B cells. In mice, expression of the surface marker CD138 has been widely used to identify plasma cells in lymph nodes, bone marrow, and spleen. Intestinal plasma cells require liberation via extensive tissue processing involving treatment with collagenase. We report that detection of CD138 surface expression is reduced following collagenase treatment. Using a mouse in which yellow fluorescent protein expression is controlled by the plasma cell requisite transcription factor Blimp-1, we show that surface detection of transmembrane activator and CAML interactor captures a significant proportion of Ab-secreting plasma cells in the intestinal lamina propria and gut-draining mesenteric lymph nodes. Additionally, we describe a flow cytometry panel based on the detection of surface markers to identify murine B cell subsets in the intestinal lamina propria and, as a proof of concept, combine it with a cutting-edge fate-tracking system to characterize the fate of germinal center B cells activated in early life. By identifying plasma cells and other key intestinal B subsets in a manner compatible with several downstream applications, including sorting and culturing and in vitro manipulations, this efficient and powerful approach can enhance studies of mucosal immunity.


Asunto(s)
Inmunoglobulina A , Células Plasmáticas , Animales , Ratones , Linfocitos B , Colagenasas/metabolismo , Membrana Mucosa , Mucosa Intestinal
12.
Ther Adv Respir Dis ; 17: 17534666231202749, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37966015

RESUMEN

BACKGROUND: Biological therapies have revolutionized the treatment of severe asthma with type 2 inflammation. Although such treatments are very effective in reducing exacerbation and the dose of oral steroids, little is known about the persistence of symptoms in severe asthma patients treated with biologics. PURPOSE: We aim to describe asthma control and healthcare consumption of severe asthma patients treated with biologics. DESIGN: The Second Souffle study is a real-life prospective observational study endorsed by the Clinical Research Initiative in Severe Asthma: a Lever for Innovation & Science Network. METHODS: Adults with a confirmed diagnosis of severe asthma for at least 12 months' duration were enrolled in the study. A self-administered questionnaire including the Asthma Control Questionnaire (ACQ), Asthma Quality of Life Questionnaire (AQLQ) and a compliance evaluation test was given to the patients. Healthcare consumption within 12 months prior to enrolment was documented. In patients receiving biologics, doctors indicated whether the patients were biologic responders or non-responders. RESULTS: The characteristics of 431 patients with severe asthma were analysed. Among them, 409 patients (94.9%) presented asthma with type 2 inflammation (T2 high) profile, and 297 (72.6%) patients with a T2 high phenotype were treated with a biologic. Physicians estimated that 88.2% of patients receiving biologics were responders. However, asthma control was only achieved in 25.3% of those patients (ACQ > 0.75). A high proportion of patients (77.8%) identified as responders to biologics were not controlled according to the ACQ score. About 50% of patients continue to use oral corticosteroids either daily (25.2%) or more than three times a year for at least three consecutive days (25.6%). Gastro-oesophageal Reflux Disease (GERD) and Obstructive Sleep Apnoea syndrome (OSA) were identified as independent factors associated with uncontrolled asthma. CONCLUSION: Although a high proportion of severe asthma patients respond to biologics, only 25.3% have controlled asthma. GERD and OSA are independent factors of uncontrolled asthma.


Asunto(s)
Antiasmáticos , Asma , Productos Biológicos , Reflujo Gastroesofágico , Apnea Obstructiva del Sueño , Adulto , Humanos , Antiasmáticos/efectos adversos , Calidad de Vida , Asma/diagnóstico , Asma/tratamiento farmacológico , Productos Biológicos/efectos adversos , Reflujo Gastroesofágico/inducido químicamente , Reflujo Gastroesofágico/tratamiento farmacológico , Inflamación/tratamiento farmacológico
13.
Mil Med ; 189(Suppl 1): 5-13, 2023 11 10.
Artículo en Inglés | MEDLINE | ID: mdl-37956331

RESUMEN

BACKGROUND: Evidence-based practice (EBP) is an innovative systematic problem-solving methodology that incorporates the best research evidence into clinical practice to improve patient outcomes, job satisfaction, and reduced healthcare costs. Although there are significant advances to implement EBP into military healthcare and operational settings, many barriers and challenges still exist. Civilian healthcare organizations have examined barriers and solutions to integrate EBP into clinical practice, but limited data exists to identify barriers and solutions to integrate EBP into military healthcare settings. Advancing the implementation of EBPs within military healthcare settings has the power to transform the administrative processes of healthcare management and most importantly, the delivery of healthcare for service members and beneficiaries. The purpose of this article is to present findings from a qualitative descriptive research study which analyzed data obtained during an EBP military summit. METHODS: A qualitative descriptive research study was used to examine EBP barriers and solutions to implement EBP in military healthcare settings. Participants attended a virtual 1-day military EBP summit (n = 182). As part of the summit, participants were invited to voluntarily participate in focus groups. Focus groups were conducted to gain an understanding of EBP barriers and solutions from military and civilian nurses and medics with interest and experience conducting EBP within military healthcare settings (n = 42). Focus group discussions were transcribed and analyzed by the study team. RESULTS: The study analysis identified six themes: leadership, command culture, EBP barriers (specific to MTF/operational environments), communication, infrastructure support, and outcome measures. Sub-themes identified additional dimensions military-specific barriers and solutions within the six identified themes. CONCLUSIONS: The results of this research study identify actionable tasks and recommendations to advance EBP within the military healthcare system. EBP is currently underutilized in the military healthcare system, and supportive implementation of EBP can be accomplished through enhanced leadership engagement, changing command culture, addressing EBP barriers, infrastructure, communication planning, and integration of existing national clinical and financial outcome measures. Given the critical need to further transition of military healthcare to evidence-based data driven decisions, the knowledge gained from this study can optimize readiness and advance healthcare delivered to service members and beneficiaries within the military healthcare system.


Asunto(s)
Enfermería Militar , Humanos , Práctica Clínica Basada en la Evidencia , Atención a la Salud , Costos de la Atención en Salud , Grupos Focales , Enfermería Basada en la Evidencia/métodos
14.
Front Plant Sci ; 14: 1204889, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37484472

RESUMEN

Introduction: During proliferative plant cell division, the new cell wall, called the cell plate, is first built in the middle of the cell and then expands outward to complete cytokinesis. This dynamic process requires coordinated movement and arrangement of the cytoskeleton and organelles. Methods: Here we use live-cell markers to track the dynamic reorganization of microtubules, nuclei, endoplasmic reticulum, and endomembrane compartments during division and the formation of the cell plate in maize leaf epidermal cells. Results: The microtubule plus-end localized protein END BINDING1 (EB1) highlighted increasing microtubule dynamicity during mitosis to support rapid changes in microtubule structures. The localization of the cell-plate specific syntaxin KNOLLE, several RAB-GTPases, as well as two plasma membrane localized proteins was assessed after treatment with the cytokinesis-specific callose-deposition inhibitor Endosidin7 (ES7) and the microtubule-disrupting herbicide chlorpropham (CIPC). While ES7 caused cell plate defects in Arabidopsis thaliana, it did not alter callose accumulation, or disrupt cell plate formation in maize. In contrast, CIPC treatment of maize epidermal cells occasionally produced irregular cell plates that split or fragmented, but did not otherwise disrupt the accumulation of cell-plate localized proteins. Discussion: Together, these markers provide a robust suite of tools to examine subcellular trafficking and organellar organization during mitosis and cell plate formation in maize.

15.
One Health ; 16: 100569, 2023 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-37275302

RESUMEN

Bats are presumed reservoirs of diverse α- and ß- coronaviruses (CoVs) and understanding the diversity of bat-CoVs and the role bats play in CoV transmission is highly relevant in the context of the current COVID pandemic. We sampled bats in Côte d'Ivoire (2016-2018) living at ecotones between anthropogenic and wild habitats in the Marahoué National Park, a recently encroached protected area, to detect and characterize the CoVs circulating in bats and humans. A total of 314 bats were captured, mostly during the rainy season (78%), and CoV RNA was detected in three of the bats (0.96%). A CoV RNA sequence similar to Chaerephon bat coronavirus/Kenya/KY22/2006 (BtKY22) was found in a Chaerephon cf. pumilus and a Mops sp. fecal swab, while a CoV RNA sequence similar to the two almost identical Kenya bat coronaviruses BtKY55 and BtKY56 (BtKY55/56) was detected in an Epomops buettikoferi oral swab. Phylogenetic analyses indicated differences in the degree of evolutionary host-virus co-speciation for BtKY22 and BtKY55/56. To assess potential for human exposure to these viruses, we conducted human syndromic and community-based surveillance in clinics and high-risk communities. We collected data on participant characteristics, livelihoods, animal contact, and high-risk behaviors that may be associated with exposure to zoonotic diseases. We then collected biological samples for viral testing from 401 people. PCR testing of these biological samples revealed no evidence of CoV infection among the enrolled individuals. We identified higher levels of exposure to bats in people working in crop production and in hunting, trapping and fishing. Finally, we used the 'Spillover' risk-ranking tool to assess the potential for viral spillover and concluded that, while there is no evidence to suggest imminent risk of spillover for these CoVs, their host range and other traits suggest caution and vigilance are warranted in people with high exposure risk.

17.
Clin Neurophysiol ; 151: 134-142, 2023 07.
Artículo en Inglés | MEDLINE | ID: mdl-37002016

RESUMEN

OBJECTIVE: Existing studies have shown changes in attention and emotion processing of disorder-relevant visual stimuli in those with obsessive compulsive disorder (OCD). However, early visual processing in OCD has not been assessed, as previous studies did not examine the entire time course of visual processing but instead assessed potential differences in pre-determined visual evoked potentials (VEPs). This study investigates the entire visual processing stream in OCD compared to healthy age-matched controls (HC) using emotionally-neutral visual stimuli and a data-driven rather than hypothesis-driven approach. METHODS: 35 HC and 26 participants with OCD underwent EEG recording while completing a modified Eriksen flanker task. Permutation-controlled t-tests were used to identify group differences in the data's full time course of visual evoked potentials. Baseline-corrected amplitudes at time points where the groups were significantly different were analyzed using ANCOVAs with BDI, BAI, and SNAP-inattentiveness scores included as covariates. RESULTS: This analysis identified enhanced P1 amplitudes to two visual stimuli (the initial flanker and the stimulus), corresponding to time windows of 65-93 ms and 157-187 ms post-flanker presentation in the OCD group compared to controls. Group (OCD vs. HC) was the strongest predictor of VEP amplitude during both time windows, with no significant influences of any covariates. CONCLUSIONS: This study showed an enhanced P1 component in people with OCD to neutral visual stimuli, potentially reflecting either inefficient or excessive early visual processing in this population. Additional inquiry is necessary to determine whether altered visual processing is associated with the sensory hypervigilance observed in those with OCD. SIGNIFICANCE: This work identifies early visual processing alterations in OCD using neutral stimuli and a data-driven approach.


Asunto(s)
Electroencefalografía , Trastorno Obsesivo Compulsivo , Humanos , Potenciales Evocados Visuales , Percepción Visual , Atención/fisiología , Potenciales Evocados/fisiología , Tiempo de Reacción/fisiología
18.
J Burn Care Res ; 44(2): 254-256, 2023 03 02.
Artículo en Inglés | MEDLINE | ID: mdl-36480693

RESUMEN

Burn patients require changing wound care routines dependent on wound characteristics and operative interventions. Order discrepancies on electronic medical systems and poor communication between providers leads to incorrect wound care treatment which can be harmful to the complex burn patient. By dedicating a daily wound care discussion for each patient involving integral components of the team: physician, charge nurse, and wound care technicians, enhanced communication amongst team members and improved patient care was noted. A single-center burn unit conducted pre- and postintervention survey of nursing staff measuring various components of wound care. The time spent on the wound care discussions were measured daily. Additional time required to conduct the rounds were minimal with nurse reported increased clarification in patient care without additional work burden. Thus, focused wound care meetings assist with communication between providers, clarification of wound care needs, and avoidance of errors without increasing strain on the team.


Asunto(s)
Quemaduras , Pase de Guardia , Humanos , Unidades de Quemados , Quemaduras/terapia , Comunicación
19.
BMC Psychiatry ; 22(1): 647, 2022 10 15.
Artículo en Inglés | MEDLINE | ID: mdl-36241971

RESUMEN

BACKGROUND: Hoarding symptoms are associated with functional impairment, though investigation of disability among individuals with hoarding disorder has largely focused on clutter-related impairment to home management activities and difficulties using space because of clutter. This analysis assesses disability among individuals with hoarding symptoms in multiple domains of everyday functioning, including cognition, mobility, self-care, interpersonal and community-level interactions, and home management. The magnitude of the association between hoarding and disability was compared to that of medical and psychiatric disorders with documented high disability burden, including major depressive disorder (MDD), diabetes, and chronic pain. METHODS: Data were cross-sectionally collected from 16,312 adult participants enrolled in an internet-based research registry, the Brain Health Registry. Pearson's chi-square tests and multivariable logistic regression models were used to quantify the relationship between hoarding and functional ability relative to MDD, diabetes, and chronic pain. RESULTS: More than one in ten participants endorsed clinical (5.7%) or subclinical (5.7%) hoarding symptoms (CHS and SCHS, respectively). After adjusting for participant demographic characteristics and psychiatric and medical comorbidity, CHS and SCHS were associated with increased odds of impairment in all domains of functioning. Moderate to extreme impairment was endorsed more frequently by those with CHS or SCHS compared to those with self-reported MDD, diabetes, and/or chronic pain in nearly all domains (e.g., difficulty with day-to-day work or school: CHS: 18.7% vs. MDD: 11.8%, p < 0.0001) except mobility and self-care. While those with current depressive symptoms endorsed higher rates of impairment than those with hoarding symptoms, disability was most prevalent among those endorsing both hoarding and comorbid depressive symptoms. CONCLUSIONS: Hoarding symptoms are associated with profound disability in all domains of functioning. The burden of hoarding is comparable to that of other medical and psychiatric illnesses with known high rates of functional impairment. Future studies should examine the directionality and underlying causality of the observed associations, and possibly identify target interventions to minimize impairment associated with hoarding symptomatology.


Asunto(s)
Dolor Crónico , Trastorno Depresivo Mayor , Diabetes Mellitus , Acaparamiento , Trastornos Mentales , Adulto , Humanos
20.
J Burn Care Res ; 43(4): 781-786, 2022 07 01.
Artículo en Inglés | MEDLINE | ID: mdl-35986444

RESUMEN

The hypermetabolic state of patients with ≥20% total body surface area (TBSA) causes loss of muscle mass and compromised immune function with delayed wound healing. Weight loss is most severe in patients with ≥20% TBSA with initial weight gain due to fluid resuscitation. The American Burn Association (ABA) proposed quality measures for burn injury admissions, including weight loss from admission to discharge. We assessed how our outcomes adhere to these measures and if they correlate with previously described results. We retrospectively reviewed adult admissions with ≥20% TBSA burn injuries from 2016 to 2021. Four groups were established based on %TBSA: 20% to 29% (Group 1), 30% to 39% (Group 2), 40% to 59% (Group 3), and ≥60% (Group 4). We assessed weight changes from admission to discharge and performed multivariate analyses to account for age, sex, total surgeries, and length of stay. Data from 123 patients revealed 40 with 20% to 29% TBSA, 29 with 30% to 39% TBSA, 33 with 40% to 59% TBSA, 21 with ≥60% TBSA. A significant difference in weight loss was observed when comparing Groups 1 and 2 and Groups 3 and 4 (Group 1: -3.63%, Group 2: -2%, Group 3: -9.28%, Group 4: -13.85%; P-value ≤ .05). Groups 3 and 4 had significantly longer lengths of stay compared to Groups 1 and 2 (Group 1: 32.16, Group 2: 37.5, Group 3: 71.13, Group 4: 87.18; P-value ≤ .01). Most patients that experienced weight loss during their admission had <15% weight loss. We found no significant difference in outcomes for patients receiving oxandrolone vs not. The mean weight change was -11% for patients with an overall weight loss and +5% for patients with an overall weight gain. The significant difference between the two groups was admission body mass index (BMI; loss: 30.4 kg/m2, gain: 26.0 kg/m2; P-value ≤ .05). Patients with ≥20% TBSA suffer weight changes, likely due to metabolic disturbances. Increased length of stay and higher %TBSA may be associated with greater weight loss. Patients experiencing weight gain had lower admission BMI suggesting that patients with higher BMI are more prone to weight loss. Our findings support that patients with %TBSA ≥40 are unique, requiring specialized nutritional protocols and metabolic analysis.


Asunto(s)
Quemaduras , Adulto , Superficie Corporal , Quemaduras/terapia , Humanos , Pacientes Internos , Tiempo de Internación , Estudios Retrospectivos , Aumento de Peso , Pérdida de Peso
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