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1.
PLoS Comput Biol ; 19(12): e1011705, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-38113208

RESUMEN

The metabolic activity of microbial communities is central to their role in biogeochemical cycles, human health, and biotechnology. Despite the abundance of sequencing data characterizing these consortia, it remains a serious challenge to predict microbial metabolic traits from sequencing data alone. Here we culture 96 bacterial isolates individually and assay their ability to grow on 10 distinct compounds as a sole carbon source. Using these data as well as two existing datasets, we show that statistical approaches can accurately predict bacterial carbon utilization traits from genomes. First, we show that classifiers trained on gene content can accurately predict bacterial carbon utilization phenotypes by encoding phylogenetic information. These models substantially outperform predictions made by constraint-based metabolic models automatically constructed from genomes. This result solidifies our current knowledge about the strong connection between phylogeny and metabolic traits. However, phylogeny-based predictions fail to predict traits for taxa that are phylogenetically distant from any strains in the training set. To overcome this we train improved models on gene presence/absence to predict carbon utilization traits from gene content. We show that models that predict carbon utilization traits from gene presence/absence can generalize to taxa that are phylogenetically distant from the training set either by exploiting biochemical information for feature selection or by having sufficiently large datasets. In the latter case, we provide evidence that a statistical approach can identify putatively mechanistic genes involved in metabolic traits. Our study demonstrates the potential power for predicting microbial phenotypes from genotypes using statistical approaches.


Asunto(s)
Bacterias , Genoma Bacteriano , Humanos , Filogenia , Bacterias/metabolismo , Genoma Bacteriano/genética , Fenotipo , Carbono/metabolismo
2.
Adv Exp Med Biol ; 1457: 165-184, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-39283426

RESUMEN

In the wake of the novel Coronavirus, it has become imperative to develop vaccines that can alert our immune system to the virus, hence reducing the severity of disease if exposed to it. Different types of vaccines have been studied in this respect, such as nucleic acid vaccines (mRNA and DNA vaccines), vector-based vaccines, whole-virus vaccines (inactivated virus and live-attenuated vaccine), as well as protein subunits vaccines. The results have demonstrated that these vaccines are efficient against both the original strain and emerging variants. Furthermore, they also proved their safety with no grave adverse events. Despite this, hesitancy toward taking these vaccines is still present among certain groups in society due to various factors. Special emphasis has been placed on studies concerning pregnant women, children, elderly people, and immunocompromised individuals where efficacy and safety were proven.


Asunto(s)
Vacunas contra la COVID-19 , COVID-19 , SARS-CoV-2 , Vacunación , Humanos , COVID-19/prevención & control , COVID-19/inmunología , Vacunas contra la COVID-19/efectos adversos , Vacunas contra la COVID-19/inmunología , Vacunas contra la COVID-19/administración & dosificación , Vacunación/métodos , SARS-CoV-2/inmunología , SARS-CoV-2/genética , Femenino , Embarazo , Huésped Inmunocomprometido , Vacunas de ARNm/inmunología
3.
COPD ; 21(1): 2321379, 2024 12.
Artículo en Inglés | MEDLINE | ID: mdl-38655897

RESUMEN

INTRODUCTION: Spirometry is the gold standard for COPD diagnosis and severity determination, but is technique-dependent, nonspecific, and requires administration by a trained healthcare professional. There is a need for a fast, reliable, and precise alternative diagnostic test. This study's aim was to use interpretable machine learning to diagnose COPD and assess severity using 75-second carbon dioxide (CO2) breath records captured with TidalSense's N-TidalTM capnometer. METHOD: For COPD diagnosis, machine learning algorithms were trained and evaluated on 294 COPD (including GOLD stages 1-4) and 705 non-COPD participants. A logistic regression model was also trained to distinguish GOLD 1 from GOLD 4 COPD with the output probability used as an index of severity. RESULTS: The best diagnostic model achieved an AUROC of 0.890, sensitivity of 0.771, specificity of 0.850 and positive predictive value (PPV) of 0.834. Evaluating performance on all test capnograms that were confidently ruled in or out yielded PPV of 0.930 and NPV of 0.890. The severity determination model yielded an AUROC of 0.980, sensitivity of 0.958, specificity of 0.961 and PPV of 0.958 in distinguishing GOLD 1 from GOLD 4. Output probabilities from the severity determination model produced a correlation of 0.71 with percentage predicted FEV1. CONCLUSION: The N-TidalTM device could be used alongside interpretable machine learning as an accurate, point-of-care diagnostic test for COPD, particularly in primary care as a rapid rule-in or rule-out test. N-TidalTM also could be effective in monitoring disease progression, providing a possible alternative to spirometry for disease monitoring.


Asunto(s)
Capnografía , Aprendizaje Automático , Enfermedad Pulmonar Obstructiva Crónica , Índice de Severidad de la Enfermedad , Enfermedad Pulmonar Obstructiva Crónica/diagnóstico , Enfermedad Pulmonar Obstructiva Crónica/fisiopatología , Humanos , Persona de Mediana Edad , Masculino , Femenino , Capnografía/métodos , Anciano , Modelos Logísticos , Sensibilidad y Especificidad , Volumen Espiratorio Forzado , Algoritmos , Valor Predictivo de las Pruebas , Área Bajo la Curva , Estudios de Casos y Controles , Espirometría/instrumentación
4.
Respir Res ; 24(1): 150, 2023 Jun 02.
Artículo en Inglés | MEDLINE | ID: mdl-37268935

RESUMEN

BACKGROUND: Although currently most widely used in mechanical ventilation and cardiopulmonary resuscitation, features of the carbon dioxide (CO2) waveform produced through capnometry have been shown to correlate with V/Q mismatch, dead space volume, type of breathing pattern, and small airway obstruction. This study applied feature engineering and machine learning techniques to capnography data collected by the N-Tidal™ device across four clinical studies to build a classifier that could distinguish CO2 recordings (capnograms) of patients with COPD from those without COPD. METHODS: Capnography data from four longitudinal observational studies (CBRS, GBRS, CBRS2 and ABRS) was analysed from 295 patients, generating a total of 88,186 capnograms. CO2 sensor data was processed using TidalSense's regulated cloud platform, performing real-time geometric analysis on CO2 waveforms to generate 82 physiologic features per capnogram. These features were used to train machine learning classifiers to discriminate COPD from 'non-COPD' (a group that included healthy participants and those with other cardiorespiratory conditions); model performance was validated on independent test sets. RESULTS: The best machine learning model (XGBoost) performance provided a class-balanced AUROC of 0.985 ± 0.013, positive predictive value (PPV) of 0.914 ± 0.039 and sensitivity of 0.915 ± 0.066 for a diagnosis of COPD. The waveform features that are most important for driving classification are related to the alpha angle and expiratory plateau regions. These features correlated with spirometry readings, supporting their proposed properties as markers of COPD. CONCLUSION: The N-Tidal™ device can be used to accurately diagnose COPD in near-real-time, lending support to future use in a clinical setting. TRIAL REGISTRATION: Please see NCT03615365, NCT02814253, NCT04504838 and NCT03356288.


Asunto(s)
Dióxido de Carbono , Enfermedad Pulmonar Obstructiva Crónica , Humanos , Enfermedad Pulmonar Obstructiva Crónica/diagnóstico , Capnografía/métodos , Volumen Espiratorio Forzado , Capacidad Vital
5.
Cell Biochem Funct ; 41(8): 1209-1219, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-37771193

RESUMEN

Valproic acid (VPA) is a commonly used drug for management of epilepsy. Prolonged VPA administration increases the risk of hepatotoxicity. Liraglutide is a glucagon-like peptide 1 receptor (GLP-1R) agonist that act as a novel antidiabetic drug with broad-spectrum anti-inflammatory and antioxidant effects. This study tested the protective effect of liraglutide against VPA-induced hepatotoxicity elucidating the possible underlying molecular mechanisms. Forty adult male rats were allocated in to four equally sized groups; Group I (control group) received oral distilled water and subcutaneous normal saline for 2 weeks followed by subcutaneous normal saline only for 2 weeks. Group II (liraglutide group) received subcutaneous liraglutide dissolved in normal saline daily for 4 weeks. Group III (valproic acid-treated group) received sodium valproate dissolved in distilled water for 2 weeks. Group IV (Combined valproic acid & liraglutide treated group) received valproic acid plus liraglutide daily for 2 weeks which was continued for additional 2 weeks after valproic acid administration. The hepatic index was calculated. Serum AST, ALT, GGT, and ALP activities were estimated. Hepatic tissue homogenate MDA, GSH, SOD, HMGB1, MAPK, RIPK1, and RIPK3 levels were evaluated using ELISA. However, hepatic RAGE and MLKL messenger RNA expression levels using the QRT-PCR technique. Hepatic NF-κB and TNF-α were detected immunohistochemically. Results proved that liraglutide coadministration significantly decreased liver enzymes, MDA, HMGB1, MAPK, RIPK1 RIPK3, RAGE, and MLKL with concomitant increased GSH and SOD in comparison to the correspondent values in VPA-hepatotoxicity group. Conclusions: Liraglutide's protective effects against VPA-induced hepatotoxicity are triggered by ameliorating oxidative stress, inflammation, and necroptosis.


Asunto(s)
Enfermedad Hepática Crónica Inducida por Sustancias y Drogas , Proteína HMGB1 , Ratas , Masculino , Animales , Ácido Valproico/farmacología , Liraglutida/farmacología , Liraglutida/metabolismo , Necroptosis , Proteína HMGB1/metabolismo , Proteína HMGB1/farmacología , Enfermedad Hepática Crónica Inducida por Sustancias y Drogas/metabolismo , Solución Salina/metabolismo , Solución Salina/farmacología , Hígado/metabolismo , Superóxido Dismutasa/metabolismo , Agua/metabolismo , Agua/farmacología , Proteínas Quinasas
6.
Anim Biotechnol ; 33(7): 1655-1660, 2022 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-34028337

RESUMEN

Caseous lymphadenitis (CLA) is a chronic and insidious disease that mainly affects small ruminants and caused by Corynebacterium pseudotuberculosis (C. pseudotuberculosis). The aims of this research were to identify C. pseudotuberculosis by PCR from pyogenic lesions, to study the phylogenetic analysis of C. pseudotuberculosis and to detect the prevalence based on the detected superficial lesions of CLA in Dakahlia governorate, Egypt. Out of 3471 clinically examined animals, 129 (3.71%) animals were affected with CLA. The isolation rate of C. pseudotuberculosis in abscess of sheep was 45.74% (59/129). Out of 129 samples examined by PCR assay, 63 (48.83%) were positive phospholipase D (PLD) indicated at fragment size 203 bp. This is the first phylogenetic analysis study of C. pseudotuberculosis isolate in Egypt which was isolated from infected sheep. Nucleotide sequence identity data demonstrated that C. pseudotuberculosis PLD gene (MW187942) Dakahlia share homology 99.01%, 98.83 and 98.48% with Zagazig, Egypt (MN867024), Tamil nadu, India (MG720636) and Sudan (MG692441), respectively. In conclusion, this study provided information on the molecular detection and phylogeny of C. pseudotuberculosis in Egypt. Findings of this study can be conducted in other CLA endemic countries with similar animal breeding practices in the Middle East and developing countries.


Asunto(s)
Infecciones por Corynebacterium , Linfadenitis , Enfermedades de las Ovejas , Ovinos , Animales , Egipto/epidemiología , India , Filogenia , Enfermedades de las Ovejas/epidemiología , Linfadenitis/epidemiología , Linfadenitis/veterinaria , Linfadenitis/diagnóstico , Infecciones por Corynebacterium/epidemiología , Infecciones por Corynebacterium/veterinaria , Infecciones por Corynebacterium/microbiología
7.
Am J Perinatol ; 2022 Oct 19.
Artículo en Inglés | MEDLINE | ID: mdl-36037856

RESUMEN

OBJECTIVE: The overuse of antimicrobials in neonates is not uncommon and has resulted in a global health crisis of antibiotic resistance. This study aimed to evaluate changes associated with a neonatologist-driven antimicrobial stewardship program (ASP) in antibiotic usage. STUDY DESIGN: We conducted a pre-post retrospective cohort study in a tertiary care hospital in Oman. Neonates admitted in 2014 to 2015 were considered as the pre-ASP cohort. In 2016, a neonatologist-driven ASP was launched in the unit. The program included the optimization and standardization of antibiotic use for early- and late-onset sepsis using the Centers for Disease Control and Prevention's "broad principles," an advanced antimicrobial decision-support system to resolve contentious issues, and placed greater emphasis on education and behavior modification. Data from the years 2016 to 2019 were compared with previous data. The outcome of interest included days of therapy (DOT) for antimicrobials. Baseline characteristics and outcomes were compared using standard statistical measures. RESULTS: The study included 2,098 neonates in the pre-ASP period and 5,464 neonates in the post-ASP period. There was no difference in baseline characteristics. The antibiotic use decreased from 752 DOT per 1,000 patient-days (PD) in the pre-ASP period to 264 DOT in the post-ASP period (64.8% reduction, p < 0.001). The proportion of neonates who received any antibiotics declined by 46% (pre-ASP = 1,161/2,098, post-ASP = 1,676/5,464). The most statistically significant reduction in DOT per 1,000 PD was observed in the use of cefotaxime (82%), meropenem (74%), and piperacillin-tazobactam (74%). There was no change in mortality, culture-positive microbial profile, or multidrug-resistant organism incidence in the post-ASP period. CONCLUSION: Empowering frontline neonatologists to drive ASPs was associated with a sustained reduction in antibiotic utilization. KEY POINTS: · Overuse of antimicrobials is not uncommon in neonatal intensive care units.. · ASPs and infection control and prevention measures may help in decreasing antibiotic consumption and culture-positive sepsis.. · Empowering frontline neonatologists resulted in a sustained decrease in antimicrobial use without extra resources or financial burden..

8.
World J Urol ; 39(5): 1421-1429, 2021 May.
Artículo en Inglés | MEDLINE | ID: mdl-32643031

RESUMEN

PURPOSE: Advancements in the diagnosis and treatment of prostate cancer (PC) have rapidly progressed through the past years. Various factors should be taken into account while treating individual patients to ensure optimal and careful decision making. The purpose of this consensus review is to summarize the current practice patterns when managing patients with advanced prostate cancer (APC) as there is still a lack of or very limited evidence on its clinical management in some areas. METHODS: Pre-defined questions were shared with experts prior to the consensus session that took place in Cairo, Egypt in April 2019 during the 8th International gastrointestinal, liver and uro-oncology conference (IGILUC). Voting was based mainly on the expert opinions of the panel after a thorough discussion and review of available evidence from guidelines or best evidence available concerning the topic at hand. RESULTS: A strong consensus or unanimity was reached on 47% of the proposed questions. Notably, the panelists reached consensus on several topics based on high-level expert opinion. These findings contribute in several ways to our understanding of the management of PC and provide a basis for future recommendations. There was also a lack of consensus on other several topics, which suggests the need for further supporting data addressing these knowledge gaps. CONCLUSION: This review offers a thorough understanding of APC practice and offers insight on the various opinions shared amongst experts in the field that can serve as guidance regionally and deepens our understanding of disease management globally.


Asunto(s)
Neoplasias de la Próstata/diagnóstico , Neoplasias de la Próstata/terapia , Humanos , Masculino
9.
Eur J Pediatr ; 180(1): 195-200, 2021 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-32656690

RESUMEN

We aimed to demonstrate the value of monitoring infants with arteriovenous malformation (AVM) during endovascular embolization with integrated evaluation of hemodynamics (IEH) and guiding decisions according to the underlying pathophysiology. This is a retrospective analysis of the perioperative hemodynamics data for 2 complex cases of AVM transferred to Khaula Hospital in Oman for interventional management. We described the value of novel physiological insights gained from comprehensive IEH and provided a systematic approach to the perioperative management. Postoperative targeted neonatal echo (TNE) was used to guide the weaning of the cardiovascular medications within 24 h. Both cases showed significant right ventricle (RV) volume overload before surgery. Narrowing of the pulse pressure (PP) during or after endovascular embolization was used as a marker of compromised systemic blood flow in real time followed by an assessment by TNE to guide the appropriate therapy.Conclusion: Integrated evaluation of hemodynamics is helpful to guide perioperative physiologic-based management of AVM. What is Known: • The preoperative management of hemodynamic compromise due to AVM has been described in many articles. • Perioperative management of AVM and related hemodynamics is a challenge to the intensive care team. What is New: • Integrated evaluation of hemodynamics is a comprehensive assessment and helpful in understanding the underlying physiologic changes during intervention with AVM. • This integrated evaluation can lead to physiologic-based medical recommendation with subsequent improvement.


Asunto(s)
Embolización Terapéutica , Malformaciones Arteriovenosas Intracraneales , Presión Sanguínea , Hemodinámica , Humanos , Lactante , Recién Nacido , Malformaciones Arteriovenosas Intracraneales/terapia , Estudios Retrospectivos
10.
Anim Biotechnol ; 32(6): 663-670, 2021 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-32163002

RESUMEN

The objective of the present study was to investigate the epidemiological and haematological parameters with simultaneous molecular detection of Theileria orientalis infection of crossbred jersey (CBJ) cattle. Haematological values like mean hemoglobin (Hb) (7.31 ± 2.3 g/dl), packed cell volume (PCV) (21.69 ± 6.11%), red blood cells count (RBCs) (4.40 ± 1.6 M/µl), white blood cells count (WBCs) (6.93 ± 3.06 103/µl) and mean corpuscular hemoglobin concentration (MCHC) (33.56 ± 3.51 g/dl) were decreased significantly (p < 0.05), whereas mean corpuscular volume (MCV) (51.06 ± 6.14fl) and eosinophil count (0.39 ± 0.44 103/µl) were significantly (p < 0.05) increased in cattle infected with T. orientalis. Analysis of major piroplasm surface protein (MPSP) of 110 blood samples randomly collected from cattle from seven districts by PCR indicated that an average of 70% of cattle was positive for T. orientalis infection. In particular, Puri and Khorda districts were identified as relatively high-risk areas for T. orientalis infection, with infection rates of 76.66% and 72.4%, respectively. The phylogenetic analysis of isolated T. orientalis MPSP gene (MN334767) classified it into type 5. Earlier Indian isolates were classified into three types viz.type 1, type 3 and type 7 and this is the first time to detect type 5 in Odisha, India.


Asunto(s)
Bovinos/parasitología , Theileria , Theileriosis/epidemiología , Animales , Bovinos/sangre , India/epidemiología , Filogenia , Theileria/genética
11.
Chem Pharm Bull (Tokyo) ; 68(8): 742-752, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32741915

RESUMEN

Five new series of hydroxybenzofuranyl-pyrazolyl chalcones 3a,b, hydroxyphenyl-pyrazolyl chalcones 6a-c and their corresponding pyrazolylpyrazolines 4a, d, 7a-c and 8a-f have been synthesized and evaluated for their in vitro cyclooxygenase (COX)-1 and COX-2 inhibitory activity. All the synthesized compounds exhibited dual COX-1 and COX-2 inhibitory activity with obvious selectivity against COX-2. The pyrazolylpyrazolines 4a-d and 8a-f bearing two vicinal aryl moieties in the pyrazoline nucleus showed more selectivity towards COX-2. Within these two series, derivatives 4c, d and 8d-f bearing the benzenesulfonamide group were the most selective. Compounds 4a-d and 8a-f were further subjected to in vivo anti-inflammatory screening, ulcerogenic liability and showed good anti-inflammatory activity with no ulcerogenic effect. In addition compounds 4c and 8d as examples showed prostaglandin (PG)E2 inhibition % 44.23 and 51.4 respectively, tumor necrosis factor α (TNFα) inhibition % 33.48 and 41.41 respectively and gastroprotective effect in ethanol induced rodent gastric ulcer model. In addition, to explore the binding mode and selectivity of our compounds, 8d and celecoxib were docked into the active site of COX-1 and COX-2. It was found that compound 8d exhibited a binding pattern and interactions similar to that of celecoxib with COX-2 active site, while bitter manner of interaction than celecoxib to COX-1 active site.


Asunto(s)
Antiinflamatorios/síntesis química , Chalconas/química , Inhibidores de la Ciclooxigenasa 2/síntesis química , Sustancias Protectoras/síntesis química , Animales , Antiinflamatorios/química , Antiinflamatorios/uso terapéutico , Sitios de Unión , Dominio Catalítico , Celecoxib/química , Celecoxib/metabolismo , Chalconas/síntesis química , Chalconas/uso terapéutico , Ciclooxigenasa 1/química , Ciclooxigenasa 1/metabolismo , Ciclooxigenasa 2/química , Ciclooxigenasa 2/metabolismo , Inhibidores de la Ciclooxigenasa 2/química , Inhibidores de la Ciclooxigenasa 2/uso terapéutico , Modelos Animales de Enfermedad , Edema/inducido químicamente , Edema/tratamiento farmacológico , Edema/patología , Humanos , Simulación del Acoplamiento Molecular , Sustancias Protectoras/química , Sustancias Protectoras/uso terapéutico , Pirazoles/química , Ratas , Úlcera Gástrica/tratamiento farmacológico , Úlcera Gástrica/patología , Relación Estructura-Actividad , Sulfonamidas/química , Factor de Necrosis Tumoral alfa/antagonistas & inhibidores , Factor de Necrosis Tumoral alfa/metabolismo , Bencenosulfonamidas
12.
Heart Lung Circ ; 28(6): 946-952, 2019 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-29895486

RESUMEN

BACKGROUND: Pulmonary hypertension secondary to left heart disease (WHO Group 2) is a known risk factor in patients with heart failure. The favourable effect of left ventricular assist devices (LVAD) on pulmonary hypertension has been demonstrated before, although this effect has not been well-studied in advanced pulmonary arterial bed disease with a significant elevation in pulmonary vascular resistance. METHODS: We reviewed the records of 258 LVAD patients in our institution. Patients with elevated mean pulmonary artery pressure (mPAP>25mmHg) and elevated pulmonary vascular resistance (PVR ≥3 Wood units) were included in the study. Patients were divided into two groups based on their baseline PVR (PVR=3-5 Wood units (WU) vs. PVR>5WU). The groups were studied for the changes in their pulmonary haemodynamics after the placement of LVAD. RESULTS: Fifty-one (51) patients were included in the study. All patients showed a significant improvement in their pulmonary haemodynamic parameters post LVAD placement. In the group with the higher PVR, mPAP dropped from a baseline of 43±7mmHg to 22±6mmHg post LVAD placement (p<0.001), while PVR dropped from 6.3±1.2 Wood units to 2.2±1.1 Wood units (p<0.001). In a subgroup of patients who underwent cardiac transplantation post LVAD (n=14), all patients maintained a normalised PVR (<3WU) one year post cardiac transplantation. CONCLUSIONS: Left ventricular assist devices can reverse pulmonary hypertension WHO Group 2 with significantly elevated PVR; this effect is not dependent on the baseline PVR, and is maintained up to one year post cardiac transplantation.


Asunto(s)
Corazón Auxiliar , Hemodinámica , Hipertensión Pulmonar , Arteria Pulmonar/fisiopatología , Sistema de Registros , Resistencia Vascular , Adulto , Anciano , Femenino , Trasplante de Corazón , Humanos , Hipertensión Pulmonar/etiología , Hipertensión Pulmonar/fisiopatología , Hipertensión Pulmonar/terapia , Masculino , Persona de Mediana Edad
13.
J Biochem Mol Toxicol ; 31(11)2017 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-28683192

RESUMEN

Amikacin (AMIK) is an aminoglycoside antibiotic that possesses considerable nephrotoxic adverse effects. This study examined the protective effects of vitamin E (VIT. E) or rosuvastatin (ROSU) against AMIK-induced nephrotoxicity. For this purpose, eight groups of rats were used. Two control groups received saline and vehicle, AMIK group (1.2 g/kg, i.p.), VIT. E group (1000 mg/kg; p.o.), ROSU group (10 mg/kg; p.o.), AMIK + VIT. E group, AMIK + ROSU group, and combination group. The results showed that AMIK significantly increased serum levels of urea and creatinine. Meanwhile, serum levels of total protein and albumin were decreased. The kidney content of malondialdehyde was increased, whereas glutathione content and catalase activity were decreased. Tumor necrosis factor-α and nuclear transcriptional factor levels were increased. Conversely, administration of VIT. E and/or ROSU with AMIK ameliorated such damage and reduced DNA fragmentation, apoptosis, and necrosis. In conclusion, co-administration of VIT. E, ROSU, or their combination alleviated AMIK-induced nephrotoxicity.


Asunto(s)
Amicacina/efectos adversos , Enfermedades Renales/prevención & control , Sustancias Protectoras/farmacología , Rosuvastatina Cálcica/farmacología , Vitamina E/farmacología , Animales , Biomarcadores/metabolismo , Quimioterapia Combinada , Riñón/efectos de los fármacos , Riñón/metabolismo , Riñón/patología , Enfermedades Renales/inducido químicamente , Masculino , Estrés Oxidativo/efectos de los fármacos , Ratas Sprague-Dawley
14.
Heart Lung Circ ; 26(5): 442-449, 2017 May.
Artículo en Inglés | MEDLINE | ID: mdl-27746058

RESUMEN

BACKGROUND: The relationship between heart failure (HF) and the serotonergic system has been established in animal studies. However, data on human plasma serotonin level in HF and its significance over the course of the disease is lacking. METHODS: Serotonin levels were measured in 173 patients (108 males, 65 females), 116 were stable HF and 40 were acute decompensated HF patients. The normal control group included 17 healthy volunteers with no known medical or psychiatric conditions. Patients receiving medications affecting serotonin receptors and those with pulmonary hypertension were excluded. All patients, except for those in the decompensated group, were on stable doses of HF medications. RESULTS: Plasma serotonin levels were significantly elevated in decompensated HF patients compared with stable patients (P=0.002). Higher plasma serotonin levels were associated with worse HF symptoms (NYHA class) and the presence of systolic dysfunction, and was borderline associated with low peak oxygen consumption during cardiopulmonary exercise testing (P=0.055). These results were independent of age, gender, race, hypertension, diabetes, renal failure, weight, coronary artery disease (CAD), atrial fibrillation and medication use. CONCLUSIONS: Serotonin is a marker for decompensation in patients with chronic heart failure. Higher serotonin levels were associated with worse HF symptoms and systolic dysfunction.


Asunto(s)
Insuficiencia Cardíaca/sangre , Serotonina/sangre , Factores de Edad , Anciano , Biomarcadores/sangre , Femenino , Insuficiencia Cardíaca/terapia , Humanos , Masculino , Persona de Mediana Edad , Factores de Riesgo , Factores Sexuales
15.
Indian J Otolaryngol Head Neck Surg ; 76(4): 3497-3500, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-39130334

RESUMEN

Branchial arch anomalies are considered congenital defects that can occur during fetal development. They may present as cysts, sinuses, or fistulae. Anomalies of the second branchial arch are the most common. The existence of bilateral complete fistulae is exceptionally rare. In this case report, a 5-year-old boy presented with recurrent episodes of bilateral neck swelling and watery discharge from openings on the anterolateral sides of his neck since birth. He was diagnosed with bilateral branchial fistulae after confirmation via a contrast-enhanced CT scan. Surgery was performed to entirely excise the fistula tracts bilaterally. Additionally, a bilateral tonsillectomy was performed to help prevent recurrence.

16.
Open Vet J ; 14(8): 1819-1835, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-39308739

RESUMEN

Background: Canine monocytic ehrlichiosis (CME) is considered a multisystemic, life-threatening, rickettsial, and tick-borne disease that affects canine species and is caused by Ehrlichia canis (E. canis). Clinical signs of CME vary from asymptomatic to severe illness with three clinical phases. E. canis has the potential to infect humans. Aim: This study aimed to provide recent information as there is limited data about the disease in Egypt. Therefore, this work was conducted to study the molecular prevalence of E. canis and evaluate the corresponding risk factors, hematology, biochemistry, and molecular characterization of the genus Ehrlichia and E. canis species among Egyptian dogs. Methods: One hundred eighty dogs of both sexes from 3 months to 8 years from different breeds: stray and foreign breeds were examined for clinical signs in all seasons in two delta governorates: El-Dakahlia and El-Gharbia. Blood samples were collected from dogs for microscopic and haemato-biochemical analysis, and then molecular characterization of the genus Ehrlichia and species-specific E. canis was performed, followed by sequencing and phylogenetic analysis. Results: Out of 180 samples examined by polymerase chain reaction (PCR) assay, 42 (23.33%) were positive for the genus of Ehrlichia and the species-specific E. canis. Only twenty-four dogs (13.33%) were positive for PCR, infested with ticks, and showed fever, anemia, loss of body weight, pale mucous membrane of gum and conjunctiva, blindness, paralysis, hemoglobinuria, and Melena. The univariate logistic regression revealed that all variables, including age, season, tick infestation, hemorrhage from natural orifices, and ectoparasitic treatments per year, showed statistical significance (p ≤ 0.05), except breed and sex, which also did not exhibit any relation between CME infection in multivariate logistic regression. The presence of morulae inside leukocytes in 66 dogs out of the total examined 180 (36.67%), only 39 (59.1%) were positive for morulae and PCR-positive for E. canis. Dogs positive for E. canis suffered from anemia, severe thrombocytopenia, the absolute value of WBCs and their fractions, alanine aminotransferas (ALT), AST, ALKP, γ-GT, total. P, T.BIL, urea, globulin, and creatinine were significantly increased in dogs infected with E. canis when compared to those with negative PCR results, while the levels of albumin and A: G ratios were significantly decreased. Conclusion: The current study proves the existence of E. canis in El-Dakahlia and El-Gharbia governorates, and this is the first large-scale study concerning the epidemiological, clinicopathological examination, molecular characterization, sequencing, and phylogenetic analysis of reported from the center of the Delta of the Nile in Egypt.


Asunto(s)
Enfermedades de los Perros , Ehrlichia canis , Ehrlichiosis , Animales , Perros , Enfermedades de los Perros/epidemiología , Enfermedades de los Perros/microbiología , Ehrlichia canis/aislamiento & purificación , Ehrlichia canis/genética , Egipto/epidemiología , Ehrlichiosis/veterinaria , Ehrlichiosis/epidemiología , Ehrlichiosis/microbiología , Femenino , Masculino , Prevalencia , Filogenia , Factores de Riesgo
17.
Indian J Otolaryngol Head Neck Surg ; 76(4): 2973-2980, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-39130325

RESUMEN

Purpose: To investigate the effect of platelet-rich plasma (PRP) on the healing of nasal mucosa after surgery of the nose. Methods: This prospective, randomized, Comparative Analytic study was conducted on 40 patients. Patients were randomly allocated into two groups: Group A, subjected to PRP, and Group B, who were not subjected to PRP after nasal surgery. The outcome of both Techniques was analyzed and compared. Results: Significant differences were found in dryness, encrustations, and postoperative healing days in the PRP group. However, no significant differences between the two groups were observed in primary bleeding, secondary bleeding, nasal synechiae, pain, healing time, return to physical activity, and patient satisfaction. Conclusion: Our study detects the potential hopeful effect of PRP on postoperative wound healing of nasal mucosa, dryness, and nasal crustations. According to these results, the application of PRP post-nasal surgery can be considered an effective method for maintaining post-nasal surgery Mucosa.

18.
Cureus ; 15(12): e50003, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-38186429

RESUMEN

Illicit drug usage (IDU) is a big challenge in clinical practice, with increasing incidence in the last decades. Daily, clinicians encounter a wide variety of complications related to IDU. Common infections related to illicit drugs are infective endocarditis, abscesses, osteomyelitis, pneumonia, HIV, hepatitis C, and B. Other rare complications could happen like leukoencephalopathy, IDU-related lung injury, and acute respiratory distress syndrome (ARDS) which is a severe and potentially life-threatening condition characterized by the sudden onset of respiratory failure, often necessitating mechanical ventilation. While the most common etiologies of ARDS are related to infections and sepsis, there is emerging evidence that substance abuse can also be associated with the development of ARDS with unclear mechanisms. IDU-related lung injury is a rare entity with few cases reported in the literature. Its management usually involves supportive care, including mechanical ventilation, oxygen therapy, and close monitoring of fluid balance. We present a case of a 25-year-old male presented with ARDS and multiorgan failure related to methamphetamine and cannabis abuse.

19.
Diabetes Metab Syndr Obes ; 15: 1261-1268, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35502409

RESUMEN

Purpose: The aim of the present work was to investigate whether hepatitis C virus treatment by directly acting antivirals obligate shifting patients with type 2 diabetes from oral hypoglycemic drugs to insulin therapy. Methods: This was a prospective study including 92 treatment-naïve patients with chronic hepatitis C virus infection and type 2 diabetes who were eligible for treatment with directly acting antivirals (sofosbuvir + daclatasvir ± ribavirin). Patients in the study were divided into two groups; group 1 included 22 patients on insulin therapy and group 2 included 70 patients on oral antidiabetic medications. Patients were advised to keep on their anti-diabetic treatment. Results: All our patients achieved sustained virologic response with significantly lower HbA1c 12 weeks after the end of therapy (p. values 0.001 for group 1 and group 2). There was no statistically significant difference in HbA1c level post-treatment between both groups (p. value 0.352). Conclusion: Achievement of sustained virologic response using interferon free, directly acting antivirals-based regimen was associated with significantly lower HbA1c 12 weeks after the end of therapy. The type of treatment used for type 2 diabetes (oral drugs or insulin) did not affect improved glycemic control observed after achieving sustained virologic response.

20.
Vet Res Commun ; 46(3): 711-717, 2022 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-35459980

RESUMEN

Lumpy skin disease virus (LSDV) is the causative agent of lumpy skin disease (LSD) which is a member of Capripoxvirus. It is an economically critical transboundary disease affecting cattle. This study records an LSD outbreak in Ganjam district of Odisha, India during August 2020. The epidemiological data were analysed and LSDV was genetically characterized. Out of the 452 animals clinically examined (59 farms), 63 animals were clinically affected with LSD, with a total morbidity rate of 13.93%. The morbidity rates in the surveyed villages (n = 10) varied from 5.55 to 21.62%. The multivariable logistic regression analysis showed that grazing of animals (P = 0.013; OR: 2.04; 95% CI: 1.16-3.57) and age of cows > 3 years old (P = 0.001; OR: 2.90; 95% CI: 1.65- 5.07) were potential risk factors for the presence of LSD. Out of the 53 clinically suspected animals' samples, 18 samples (33.96%) were found positive for both the P32 and F genes of Capripoxvirus by PCR. Phylogenetic analysis of the P32 gene of LSDV (MW147486) showed 100% similarity with other isolates from India, Bangladesh, Egypt and Saudi Arabia. Additionally, phylogenetic analysis of the F gene of LSDV (MW147485) revealed a similarity of 97.99%, with Odisha India (MT074110) isolate and located in the same cluster with other Indian isolates.


Asunto(s)
Enfermedades de los Bovinos , Dermatosis Nodular Contagiosa , Virus de la Dermatosis Nodular Contagiosa , Animales , Bovinos , Femenino , Enfermedades de los Bovinos/epidemiología , Brotes de Enfermedades/veterinaria , Dermatosis Nodular Contagiosa/epidemiología , Virus de la Dermatosis Nodular Contagiosa/genética , Epidemiología Molecular , Filogenia
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