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1.
Acta Med Philipp ; 58(14): 13-26, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-39238551

RESUMEN

Objective: To describe the treatment outcomes of patients who underwent tube pericardiostomy for all etiologies of non-traumatic massive pericardial effusion or tamponade during the COVID-19 pandemic and determine the association between patient profile and treatment outcomes. Methods: Data were obtained from patients with massive pericardial effusion or cardiac tamponade who underwent surgical drainage from January 1, 2020, to September 1, 2022, in the University of the Philippines - Philippine General Hospital (UP-PGH). These patients' demographic and clinical profiles, and treatment outcomes were evaluated using frequencies and percentages. Chi-squared and Fisher's tests determined the differences between COVID (+) and (-) groups. Odds Ratio was used to assess the risk of complications and mortality. Results: The study population comprised 90 patients with a mean age of 45 years. 54.4% were females. Fifteen (16.67%) were COVID-19 (+) and 75 (83.33%) were COVID-19 (-). Most of the patients were of O+ blood type (34.4%), with no smoking history (67.8%) and no COVID-19 vaccination (76.7%). Common comorbidities were cancer (70%), tuberculosis infection (32.2%), and hypertension (25.6%). No significant difference was found between the two study groups. The presentation was subacute (one week to three months) (62.2%), with the most common symptoms of dyspnea (81.1%), orthopnea (61.1%), and cough (52.2%). Tachycardia (80%) and tachypnea (57.8%) were the most common presenting signs. Hypotension was found more frequently among COVID-19 (+) patients (46.7% vs. 12.0%, p = 0,003, 95% CI). Most patients had abnormal WBC, coagulopathy, elevated inflammatory markers, and cardiac biomarkers. Sinus tachycardia, regular sinus rhythm, ST-T wave changes, and low voltage QRS were common ECG findings. The most common chest X-ray results were pleural effusion (80%), pneumonia (71.1%), and enlarged cardiac border (42.2%). Majority of echocardiographic findings were large effusion (>2 cm) (97.8%), RV collapse (40%), and RA collapse (23.3%). An average of 628 ml of pericardial effusion was drained, predominantly serous and exudative. One specimen yielded a positive AFB culture. 6.7% showed carcinoma cells on fluid cytology. The pericardium was normal in 78.9%. 10.0% of the pericardial biopsy specimen had carcinoma, with metastatic cancer being the most common etiology. The most common cancers were lymphoma (22.7%), breast (25.8%), and lung (16.7%). Hospital length of stay was 18 days in COVID-19 (+) patients and 12 days in COVID (-). The complication and in-hospital mortality rate in the COVID-19 (+) compared to the (-) group (86.7% vs. 73.3% and 46.7% vs. 41.3%, respectively) were not statistically significant. The most common complications were respiratory failure (60%), shock (53.3%), and nosocomial pneumonia (40%). There was no association between clinical factors and the risk for complications. Any complication increased the risk for mortality (OR 15.0, 95% CI 3.2-19.7, p=0.002). The presence of hypertension (OR 0.08, 95% CI 0.02 to 0.4, p=0.001) and subacute duration (OR 0.3, 95% CI 0.09 -0.9, p=0.045) decreased the mortality risk. Conclusions: Profiles were similar in both groups. There was no association between patient profile and complications. Having COVID-19 did not affect patient outcome. The presence of any complication increases the risk of mortality. In-hospital mortality was high at 42.2%.

2.
Nanoscale Horiz ; 2024 Sep 06.
Artículo en Inglés | MEDLINE | ID: mdl-39240539

RESUMEN

Plasmonic nanoparticles (NPs) have played a significant role in the evolution of modern nanoscience and nanotechnology in terms of colloidal synthesis, general understanding of nanocrystal growth mechanisms, and their impact in a wide range of applications. They exhibit strong visible colors due to localized surface plasmon resonance (LSPR) that depends on their size, shape, composition, and the surrounding dielectric environment. Under resonant excitation, the LSPR of plasmonic NPs leads to a strong field enhancement near their surfaces and thus enhances various light-matter interactions. These unique optical properties of plasmonic NPs have been used to design chemical and biological sensors. Over the last few decades, colloidal plasmonic NPs have been greatly exploited in sensing applications through LSPR shifts (colorimetry), surface-enhanced Raman scattering, surface-enhanced fluorescence, and chiroptical activity. Although colloidal plasmonic NPs have emerged at the forefront of nanobiosensors, there are still several important challenges to be addressed for the realization of plasmonic NP-based sensor kits for routine use in daily life. In this comprehensive review, researchers of different disciplines (colloidal and analytical chemistry, biology, physics, and medicine) have joined together to summarize the past, present, and future of plasmonic NP-based sensors in terms of different sensing platforms, understanding of the sensing mechanisms, different chemical and biological analytes, and the expected future technologies. This review is expected to guide the researchers currently working in this field and inspire future generations of scientists to join this compelling research field and its branches.

3.
Heliyon ; 10(16): e36181, 2024 Aug 30.
Artículo en Inglés | MEDLINE | ID: mdl-39253243

RESUMEN

Ionic Covalent Organic Frameworks are a special subgroup that has risen as promising materials for innovative applications. In parallel, some of the so-called Reticular Innovative Organic compounds (RIOs), which are ionic and non-ionic porous materials have been used with great versatility, for several purposes. In this work, the ionic dye-based RIO-55 was chosen to capture a series of lanthanides (Eu, Gd, Dy, and Tb) from water, observing their affinity with the lattice and the performance of the adsorbent. Thus, the higher adsorbed amount was referred to as Eu3+ (Qmax = 370 mg/g), as well as the best affinity (KL = 5x10-3), following the Langmuir model. The impregnated Eu3+@RIO-55 was used for chemical sensing, capturing dopant molecules (ephedrine and dopamine) from water, showing great performance, even after some reuse cycles. In addition, some initial fluorescence tests were performed using RIO-55 and Eu3+@RIO-55 to observe the spectrum before and after lanthanide impregnation.

4.
Am J Emerg Med ; 2024 Sep 12.
Artículo en Inglés | MEDLINE | ID: mdl-39289053

RESUMEN

Colubrids represent a diverse group of snakes historically regarded as harmless. With over 300 genera, the Colubridae family is the largest, encompassing approximately two-thirds of extant snake species. We describe a case of an 18-year-old male who suffered a colubrid snakebite from Erythrolamprus bizona, commonly known as the double-stranded coral snake mimic or false coral snake, which he misidentified as Lampropeltis sp., a fangless colubrid snake. Patient experienced localized erythema and edema, which later spread to the entire left hand along with moderate pain. Laboratory tests revealed leukocytosis and elevated creatine kinase. Symptoms resolved one week later. This case highlights the public health significance of ophidian accidents due to apparently "non-venomous snakes" or low-risk snakes such as the opisthoglyphous colubrid E. bizona. It also underscores the need to correctly identify and differentiate these snakes from other harmless colubrids, particularly double-stranded coral snake mimics in areas of geographic overlap and avoid their manipulation if uncertain of their taxonomic status.

5.
Langmuir ; 2024 Aug 17.
Artículo en Inglés | MEDLINE | ID: mdl-39153215

RESUMEN

1-Dodecyl-2-methylpyridinium bromide ([C12-2-Pic][Br]) and 1-hexadecyl-2-methylpyridinium bromide ([C16-2-Pic][Br]) are two ionic liquid crystals presenting thermotropic smectic phases above 80 °C. Aiming to take advantage of the liquid crystalline properties at lower temperatures, lyotropic aqueous systems were prepared from these two organic salts. Both systems were characterized by polarized optical microscopy (POM), X-ray powder diffraction (XRD), and fast field cycling nuclear magnetic resonance (FFC-NMR) relaxometry to assess their texture, phase structure, and molecular dynamics, respectively. The mesomorphic behavior was induced at room temperature. Moreover, the lyotropic [C12-2-Pic][Br]aq revealed a smectic phase with higher separation between layers, different from the lamellar phases found in the thermotropic system (S1 and SA), which is thermally stable up to 50 °C. Furthermore, the surfactant nature of the ionic liquids diluted solutions investigated in this work allowed the formation of foams. It was found that the precursor solutions of the lyotropic dilutions with the longest alkyl chain ([C16-2-Pic][Br]aq) originated liquid foams with more stable structures than those of [C12-2-Pic][Br]aq.

6.
Nature ; 632(8027): 1009-1013, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-39143219

RESUMEN

The nucleus of almost all massive galaxies contains a supermassive black hole (BH)1. The feedback from the accretion of these BHs is often considered to have crucial roles in establishing the quiescence of massive galaxies2-14, although some recent studies show that even galaxies hosting the most active BHs do not exhibit a reduction in their molecular gas reservoirs or star formation rates15-17. Therefore, the influence of BHs on galaxy star formation remains highly debated and lacks direct evidence. Here, based on a large sample of nearby galaxies with measurements of masses of both BHs and atomic hydrogen (HI), the main component of the interstellar medium18, we show that the HI gas mass to stellar masses ratio (µHI = MHI/M⋆) is more strongly correlated with BH masses (MBH) than with any other galaxy parameters, including stellar mass, stellar mass surface density and bulge masses. Moreover, once the µHI-MBH correlation is considered, µHI loses dependence on other galactic parameters, demonstrating that MBH serves as the primary driver of µHI. These findings provide important evidence for how the accumulated energy from BH accretion regulates the cool gas content in galaxies, by ejecting interstellar medium gas and/or suppressing gas cooling from the circumgalactic medium.

7.
J Pediatr (Rio J) ; 2024 Aug 16.
Artículo en Inglés | MEDLINE | ID: mdl-39159917

RESUMEN

OBJECTIVE: To describe independent factors related to the interaction of FTO rs9939609, TMEM18 rs6548238, leptin, and adiponectin in children/adolescents with asthma, under the influence of obesity. METHODS: The authors performed a cross-sectional study with 57 children/adolescents, ages 8-19 years, at a tertiary hospital, from 2017 to 2018. Participants were classified by nutritional status, performed spirometry with a bronchodilator test and completed an asthma questionnaire, higher scores indicated more asthma symptoms. Two asthma groups were formed: Group 1(G1)-normal-weight; Group 2(G2)-overweight/obese. Serum was collected for adipokines (n = 32) and genetic polymorphisms (n = 53) dosages. RESULTS: Age and body mass index (BMI) correlated directly in normal-weight (p = 0.009) and obese participants (p = 0.004). Girls reported more asthma complaints (p = 0.044). Participants with negative bronchodilator responses presented lower BMI (14.55-17.16) than responders (19.4-26.84) (p = 0.049). Leptin dosages are related directly to BMI (5,34-40 ng/ml in obese × 0,54-42 ng/ml in nonobese) (p = 0.003). Levels were high in girls (4.78-17.55 µg/ml) (p = 0.029) and low in nonobese boys (0.54-6.92 µg/ml) (p = 0.006). In obese, low leptin levels (< 10 ng/ml) were found in small airway dysfunction carriers (p = 0.025); elevated adiponectin (> 5 µg/ml) correlated with FEV1/FVC > 80 % (p = 0.035) and positive bronchodilator tests (8.84-13 µg/ml) (p = 0.039); and FTO A allele correlated with low adiponectin 0-8.84 µg/ml (p = 0.021) and low FEV1/FVC (46 %-88 %) (p = 0.023). CONCLUSION: BMI correlated directly with age and leptin levels. Obese participants presented high serum levels of leptin and FTO A allele correlated with low FEV1/FVC. Larger cohorts are necessary for better elucidation of the role of adipokines and polymorphisms in the pathophysiology of asthma and obesity.

8.
J Urol ; : 101097JU0000000000004224, 2024 Aug 26.
Artículo en Inglés | MEDLINE | ID: mdl-39186830

RESUMEN

PURPOSE: Epididymal cyst lesions (ECLs) include both spermatoceles and epididymal cysts and are often incidentally found on physical exam or scrotal US (SUS). We aimed to determine the association of ECLs and semen parameters among men presenting for fertility evaluation. MATERIALS AND METHODS: We reviewed men at our institution who had at least 1 semen analysis and SUS available for review between 2002 and 2022. SUS data included testicular measurements, presence or absence of subclinical varicocele, and size and laterality of ECL, if present. Demographic and clinical information including serum testosterone and follicle-stimulating hormone and semen parameters were compared between men with and without ECLs. RESULTS: Among 861 men, 164 (19%) had unilateral right ECL (median 4 mm, interquartile range 3-8 mm), 189 (22%) had unilateral left ECL (median 4 mm, interquartile range 3-9 mm), and 113 (13%) had bilateral ECL. Patients with ECLs were significantly older than men without ECLs at the time of evaluation but had no statistically significant difference in semen volume, sperm concentration, sperm motility, sperm morphology, total motile sperm count, or serum hormonal values. Analysis of men with unilateral and bilateral ECLs showed that ECL size and laterality did not significantly correlate with any semen parameter evaluated. CONCLUSIONS: We found no association between ECLs and semen parameters. Patients should be counseled toward conservative management with observation for asymptomatic ECLs in the setting of fertility evaluation.

9.
Pathogens ; 13(8)2024 Jul 25.
Artículo en Inglés | MEDLINE | ID: mdl-39204216

RESUMEN

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) was the causative agent of the coronavirus disease 2019 (COVID-19) pandemic. While research on COVID-19 has mainly focused on its epidemiology, pathogenesis, and treatment, studies on the naso-oropharyngeal microbiota have emerged in the last few years as an overlooked area of research. Here, we analyzed the bacterial community composition of the naso-oropharynx in 50 suspected SARS-CoV-2 cases (43 detected, 7 not detected) from Veraguas province (Panama) distributed across five age categories. Statistical analysis revealed no significant differences (p < 0.05) in bacterial alpha and beta diversities between the groups categorized by SARS-CoV-2 test results, age, or patient status. The genera Corynebacterium, Staphylococcus, Prevotella, Streptococcus, and Tepidiphilus were the most abundant in both detected and not-detected SARS-CoV-2 group. The linear discriminant analysis effect size (LEfSe) for biomarker exploration indicated that Veillonella and Prevotella were enriched in detected and hospitalized patients with SARS-CoV-2 relative to non-detected patients, while Thermoanaerobacterium and Haemophilus were enriched in non-detected patients with SARS-CoV-2. The results also indicated that the genus Corynebacterium was found to decrease in patients with detected SARS-CoV-2 relative to those with non-detected SARS-CoV-2. Understanding the naso-oropharyngeal microbiota provides insights into the diversity, composition, and resilience of the microbial community in patients with SARS-CoV-2.

10.
Geroscience ; 2024 Aug 31.
Artículo en Inglés | MEDLINE | ID: mdl-39215795

RESUMEN

This investigation aimed to determine the effects of 24 weeks of resistance training (RT) on cardiac function in older women. Seventy-three physically independent older women were selected for this investigation. Participants were randomized into a training group (TG, n = 38) and a control group (CG, n = 35). The RT program was conducted over 24 weeks and consisted of three sessions a week. Participants performed eight exercises for the whole body in three sets of 8-12 repetitions. Tissue Doppler echocardiography was performed, according to current guidelines, before and after 24 weeks of the intervention. One-repetition maximum (1-RM) tests were used to assess muscular strength. A group vs. time interaction (P < 0.05) was shown for left ventricular end-diastolic volume (TG = - 8.3% vs. CG = - 0.6%), left ventricular end-systolic volume (TG = - 10.6% vs. CG = + 1.1%), and left atrial volume index (TG = - 9.1% vs. CG = + 3.9%). A main time effect (P < 0.05) was found for left ventricular mass index (TG = + 4.9% vs. CG = - 0.6%), septal thickness (TG = + 3.3% vs. CG = - 1.7%), left ventricular ejection fraction (TG = + 3.7% vs. CG = - 0.5%), E'/E septal (TG = - 4.8% vs. CG = + 0.5%), deceleration time (TG = - 4.1% vs. CG = + 3.9%), E septal (TG = + 4.6% vs. CG = - 0.6%), and E lateral (TG = + 5.2% vs. CG = - 1.1%). These results suggest that 24 weeks of RT improves cardiac morphological and functional variables in older women.

11.
Int J Mol Sci ; 25(14)2024 Jul 11.
Artículo en Inglés | MEDLINE | ID: mdl-39062884

RESUMEN

Alzheimer's disease (AD), a neurodegenerative disorder characterized by progressive cognitive decline, is the most common form of dementia. Currently, there is no single test that can diagnose AD, especially in understudied populations and developing countries. Instead, diagnosis is based on a combination of medical history, physical examination, cognitive testing, and brain imaging. Exosomes are extracellular nanovesicles, primarily composed of RNA, that participate in physiological processes related to AD pathogenesis such as cell proliferation, immune response, and neuronal and cardiovascular function. However, the identification and understanding of the potential role of long non-coding RNAs (lncRNAs) in AD diagnosis remain largely unexplored. Here, we clinically, cognitively, and genetically characterized a sample of 15 individuals diagnosed with AD (cases) and 15 controls from Barranquilla, Colombia. Advanced bioinformatics, analytics and Machine Learning (ML) techniques were used to identify lncRNAs differentially expressed between cases and controls. The expression of 28,909 lncRNAs was quantified. Of these, 18 were found to be differentially expressed and harbored in pivotal genes related to AD. Two lncRNAs, ENST00000608936 and ENST00000433747, show promise as diagnostic markers for AD, with ML models achieving > 95% sensitivity, specificity, and accuracy in both the training and testing datasets. These findings suggest that the expression profiles of lncRNAs could significantly contribute to advancing personalized AD diagnosis in this community, offering promising avenues for early detection and follow-up.


Asunto(s)
Enfermedad de Alzheimer , ARN Largo no Codificante , Enfermedad de Alzheimer/diagnóstico , Enfermedad de Alzheimer/genética , Humanos , ARN Largo no Codificante/genética , Femenino , Masculino , Anciano , Medicina de Precisión/métodos , Biomarcadores , Aprendizaje Automático , Anciano de 80 o más Años , Estudios de Casos y Controles , Perfilación de la Expresión Génica/métodos , Biología Computacional/métodos
12.
Nat Commun ; 15(1): 5870, 2024 Jul 12.
Artículo en Inglés | MEDLINE | ID: mdl-38997333

RESUMEN

Research demonstrates the important role of genetic factors in attention-deficit/hyperactivity disorder (ADHD). DNA sequencing of families provides a powerful approach for identifying de novo (spontaneous) variants, leading to the discovery of hundreds of clinically informative risk genes for other childhood neurodevelopmental disorders. This approach has yet to be extensively leveraged in ADHD. We conduct whole-exome DNA sequencing in 152 families, comprising a child with ADHD and both biological parents, and demonstrate a significant enrichment of rare and ultra-rare de novo gene-damaging mutations in ADHD cases compared to unaffected controls. Combining these results with a large independent case-control DNA sequencing cohort (3206 ADHD cases and 5002 controls), we identify lysine demethylase 5B (KDM5B) as a high-confidence risk gene for ADHD and estimate that 1057 genes contribute to ADHD risk. Using our list of genes harboring ultra-rare de novo damaging variants, we show that these genes overlap with previously reported risk genes for other neuropsychiatric conditions and are enriched in several canonical biological pathways, suggesting early neurodevelopmental underpinnings of ADHD. This work provides insight into the biology of ADHD and demonstrates the discovery potential of DNA sequencing in larger parent-child trio cohorts.


Asunto(s)
Trastorno por Déficit de Atención con Hiperactividad , Secuenciación del Exoma , Predisposición Genética a la Enfermedad , Humanos , Trastorno por Déficit de Atención con Hiperactividad/genética , Predisposición Genética a la Enfermedad/genética , Femenino , Niño , Masculino , Estudios de Casos y Controles , Histona Demetilasas/genética , Mutación , Factores de Riesgo
13.
Neurogastroenterol Motil ; 36(9): e14876, 2024 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-39072841

RESUMEN

BACKGROUND: Diarrhea is commonly associated with irritable bowel syndrome, inflammatory bowel disease, microscopic colitis, and other gastrointestinal dysfunctions. Spontaneously occurring idiopathic chronic diarrhea is frequent in rhesus macaques, but has not been used as a model for the investigation of diarrhea or its treatment. We characterized this condition and present preliminary data demonstrating that left vagal nerve stimulation provides relief. METHODS: Stool consistency scores were followed for up to 12 years. Inflammation was assessed by plasma C-reactive protein, [18F]fluorodeoxyglucose (FDG) uptake, measured by positron emission tomography (PET), multiplex T cell localization, endoscopy and histology. The vagus was stimulated for 9 weeks in conscious macaques, using fully implanted electrodes, under wireless control. KEY RESULTS: Macaques exhibited recurrent periods of diarrhea for up to 12 years, and signs of inflammation: elevated plasma C-reactive protein, increased bowel FDG uptake and increased mucosal T helper1 T-cells. The colon and distal ileum were endoscopically normal, and histology revealed mild colonic inflammation. Application of vagal nerve stimulation to conscious macaques (10 Hz, 30 s every 3 h; 24 h a day for 9 weeks) significantly reduced severity of diarrhea and also reduced inflammation, as measured by FDG uptake and C-reactive protein. CONCLUSIONS AND INFERENCES: These macaques exhibit spontaneously occurring diarrhea with intestinal inflammation that can be reduced by VNS. The data demonstrate the utility of this naturally occurring primate model to study the physiology and treatments for chronic diarrhea and the neural control circuits influencing diarrhea and inflammation that are not accessible in human subjects.


Asunto(s)
Diarrea , Macaca mulatta , Estimulación del Nervio Vago , Animales , Diarrea/terapia , Estimulación del Nervio Vago/métodos , Enfermedad Crónica , Masculino , Femenino , Modelos Animales de Enfermedad , Inflamación
14.
J Fungi (Basel) ; 10(7)2024 Jun 29.
Artículo en Inglés | MEDLINE | ID: mdl-39057348

RESUMEN

Invasive fungal disease causes high morbidity and mortality among immunocompromised patients. Resistance to conventional antifungal drugs and the toxicity associated with high doses highlight the need for effective antifungal therapies. In this study, the antifungal potential of the ethanolic extract of Anacardium occidentale (Cashew Leaf) leaves were evaluated against Candida albicans and C. auris. The antifungal activity was tested by the broth microdilution method and growth kinetic test. To further explore its antifungal action mode, spectrofluorophotometry, confocal microscopy and scanning and transmission electron microscopy were performed. Additionally, heterozygous knockout strains associated with resistance to oxidative stress were included in the study. We found that A. occidentale could inhibit the proliferation and growth of C. albicans at concentrations of 62.5 and 125 µg/mL. The doubling time was also drastically affected, going from 2.8 h to 22.5 h, which was also observed in C. auris. The extract induced the accumulation of intracellular reactive oxygen species (ROS), resulting in endoplasmic reticulum stress and mitochondrial dysfunction, while it did not show cytotoxicity or hemolytic activity at the concentrations evaluated. Our work preliminarily elucidated the potential mechanisms of A. occidentale against C. albicans on a cellular level, and might provide a promising option for the design of a new treatment for invasive candidiasis.

15.
Appl Environ Microbiol ; 90(7): e0039724, 2024 Jul 24.
Artículo en Inglés | MEDLINE | ID: mdl-38975758

RESUMEN

Beer brewing is a well-known process that still faces great challenges, such as the total consumption of sugars present in the fermentation media. Lager-style beer, a major worldwide beer type, is elaborated by Saccharomyces pastorianus (Sp) yeast, which must ferment high maltotriose content worts, but its consumption represents a notable problem, especially among Sp strains belonging to group I. Factors, such as fermentation conditions, presence of maltotriose transporters, transporter copy number variation, and genetic regulation variations contribute to this issue. We assess the factors affecting fermentation in two Sp yeast strains: SpIB1, with limited maltotriose uptake, and SpIB2, known for efficient maltotriose transport. Here, SpIB2 transported significantly more maltose (28%) and maltotriose (32%) compared with SpIB1. Furthermore, SpIB2 expressed all MAL transporters (ScMALx1, SeMALx1, ScAGT1, SeAGT1, MTT1, and MPHx) on the first day of fermentation, whereas SpIB1 only exhibited ScMalx1, ScAGT1, and MPH2/3 genes. Some SpIB2 transporters had polymorphic transmembrane domains (TMD) resembling MTT1, accompanied by higher expression of these transporters and its positive regulator genes, such as MAL63. These findings suggest that, in addition to the factors mentioned above, positive regulators of Mal transporters contribute significantly to phenotypic diversity in maltose and maltotriose consumption among the studied lager yeast strains.IMPORTANCEBeer, the third most popular beverage globally with a 90% market share in the alcoholic beverage industry, relies on Saccharomyces pastorianus (Sp) strains for lager beer production. These strains exhibit phenotypic diversity in maltotriose consumption, a crucial process for the acceptable organoleptic profile in lager beer. This diversity ranges from Sp group II strains with a notable maltotriose-consuming ability to Sp group I strains with limited capacity. Our study highlights that differential gene expression of maltose and maltotriose transporters and its upstream trans-elements, such as MAL gene-positive regulators, adds complexity to this variation. This insight can contribute to a more comprehensive analysis needed to the development of controlled and efficient biotechnological processes in the beer brewing industry.


Asunto(s)
Cerveza , Fermentación , Proteínas Fúngicas , Maltosa , Saccharomyces , Trisacáridos , Maltosa/metabolismo , Trisacáridos/metabolismo , Saccharomyces/genética , Saccharomyces/metabolismo , Cerveza/microbiología , Proteínas Fúngicas/genética , Proteínas Fúngicas/metabolismo , Transporte Biológico , Proteínas de Transporte de Monosacáridos/genética , Proteínas de Transporte de Monosacáridos/metabolismo , Regulación Fúngica de la Expresión Génica
16.
Front Epidemiol ; 4: 1368675, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38952354

RESUMEN

Background: Multiple Sclerosis (MS) is a common neurological disease among white populations of European origin. Frequencies among Latin Americans continue to be studied, however, epidemiologic, and clinical characterization studies lack from Central American and Caribbean countries. Ethnicity in these countries is uniformly similar with a prevalent Mestizo population. Methods and results: Data from January 2014 to December 2019 from Guatemala, El Salvador, Honduras, Nicaragua, Costa Rica, Panama, Dominican Republic, and Aruba on demographic, clinical, MRI and phenotypic traits were determined in coordinated studies: ENHANCE, a population-based, retrospective, observational study on incidence and clinical characteristics, and from the subgroup with MS national registries (Aruba, Dominican Republic, Honduras, and Panama), data on prevalence, phenotypes and demographics. Expanded Disability Status Scale (EDSS), and therapeutic schemes were included. ENHANCE data from 758 patients disclosed 79.8% of Mestizo ethnicity; 72.4% female; median age at onset 31.0 years and 33.2 at diagnosis. The highest incidence rate was from Aruba, 2.3-3.5 × 100,000 inhabitants, and the lowest, 0.07-0.15 × 100,000, from Honduras. Crude prevalence rates per 100,000 inhabitants fluctuated from 27.3 (Aruba) to 1.0 (Honduras). Relapsing MS accounted for 87.4% of cases; EDSS <3.0 determined in 66.6% (mean disease duration: 9.1 years, SD ± 5.0); CSF oligoclonal bands 85.7%, and 87% of subjects hydroxyvitamin D deficient. Common initial therapies were interferon and fingolimod. Switching from interferon to fingolimod was the most common escalation step. The COVID-19 pandemic affected follow-up aspects of these studies. Conclusion: This is the first study providing data on frequencies and clinical characteristics from 8 countries from the Central American and Caribbean region, addressing MS as an emergent epidemiologic disorder. More studies from these areas are encouraged.

17.
Contraception ; 138: 110514, 2024 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-38879070

RESUMEN

OBJECTIVE: To compare the effectiveness and safety of medication abortion (MAB) via telemedicine versus in-person in pregnant people with less than 12 gestational weeks in Colombia. STUDY DESIGN: A retrospective cohort study was conducted with 23,362 pregnant people who requested MAB service from Profamilia (a Colombian non-governmental organization) in 2021-2022. The outcomes were success and safety of MAB. We performed a descriptive and a multivariate statistical analysis using the binary regression model to obtain an adjusted Odds Ratio (aOR) to identify factors associated with abortion success. RESULTS: In comparison to in-person care (n = 20,289), individuals in telemedicine (n = 3073) were predominantly from urban areas, belonged to a lower socioeconomic stratum, single and did not identify with any ethnic group. In-person users tended to have higher levels of education and accessed the service through private insurance (p < 0,05). There were no differences in the odd of a successful abortion based on the modality of care (aOR 1.18; 95% CI=0.87-1.59). The results were also the same with sensitivity analysis stratified: pregnant people who were nine weeks gestation or less (aOR 0.86; 95% CI=0.63-1.17) or more (aOR 0.87; 95% CI=0.28-2.65). CONCLUSION: Telemedicine is an effective and safe option for MAB, as in-person care. Telemedicine has the potential to increase abortion access by extending the availability of providers and offering people a new option for obtaining care conveniently and privately, especially for women with disadvantaged socioeconomic and educational background. IMPLICATIONS: This study demonstrates that medication abortion (MAB) administered via telemedicine produces outcomes akin to those of in-person care, providing a compelling rationale for its adoption, particularly in underserved regions. This approach can be replicated in other countries in Latin America and the Caribbean.


Asunto(s)
Aborto Inducido , Telemedicina , Humanos , Femenino , Embarazo , Colombia , Estudios Retrospectivos , Adulto , Aborto Inducido/métodos , Adulto Joven , Adolescente , Abortivos/administración & dosificación
18.
Compr Psychiatry ; 133: 152506, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-38833896

RESUMEN

BACKGROUND: Trichotillomania (TTM) and excoriation disorder (ED) are impairing obsessive-compulsive related disorders that are common in the general population and for which there are no clear first-line medications, highlighting the need to better understand the underlying biology of these disorders to inform treatments. Given the importance of genetics in obsessive-compulsive disorder (OCD), evaluating genetic factors underlying TTM and ED may advance knowledge about the pathophysiology of these body-focused repetitive behaviors. AIM: In this systematic review, we summarize the available evidence on the genetics of TTM and ED and highlight gaps in the field warranting further research. METHOD: We systematically searched Embase, PsycInfo, PubMed, Medline, Scopus, and Web of Science for original studies in genetic epidemiology (family or twin studies) and molecular genetics (candidate gene and genome-wide) published up to June 2023. RESULTS: Of the 3536 records identified, 109 studies were included in this review. These studies indicated that genetic factors play an important role in the development of TTM and ED, some of which may be shared across the OCD spectrum, but there are no known high-confidence specific genetic risk factors for either TTM or ED. CONCLUSIONS: Our review underscores the need for additional genome-wide research conducted on the genetics of TTM and ED, for instance, genome-wide association and whole-genome/whole-exome DNA sequencing studies. Recent advances in genomics have led to the discovery of risk genes in several psychiatric disorders, including related conditions such as OCD, but to date, TTM and ED have remained understudied.


Asunto(s)
Trastorno de Excoriación , Trastorno Obsesivo Compulsivo , Tricotilomanía , Humanos , Trastorno de Excoriación/genética , Estudio de Asociación del Genoma Completo , Trastorno Obsesivo Compulsivo/genética , Tricotilomanía/genética
19.
Biochim Biophys Acta Mol Basis Dis ; 1870(7): 167283, 2024 10.
Artículo en Inglés | MEDLINE | ID: mdl-38851305

RESUMEN

Obesity represents a significant health challenge, intricately linked to conditions such as type II diabetes, metabolic syndrome, and hepatic steatosis. Several existing obesity treatments exhibit limited efficacy, undesirable side effects or a limited capability to maintain therapeutics effects in the long-term. Recently, modulation Coenzyme Q (CoQ) metabolism has emerged as a promising target for treatment of metabolic syndrome. This potential intervention could involve the modulation of endogenous CoQ biosynthesis by the use of analogs of the precursor of its biosynthesis, such as ß-resorcylic acid (ß-RA). Here, we show that oral supplementation with ß-RA, incorporated into the diet of diet-induced obese (DIO) mice, leads to substantial weight loss. The anti-obesity effects of ß-RA are partially elucidated through the normalization of mitochondrial CoQ metabolism in white adipose tissue (WAT). Additionally, we identify an HFN4α/LXR-dependent transcriptomic activation of the hepatic lipid metabolism that contributes to the anti-obesity effects of ß-RA. Consequently, ß-RA mitigates WAT hypertrophy, prevents hepatic steatosis, counteracts metabolic abnormalities in WAT and liver, and enhances glucose homeostasis by reducing the insulin/glucagon ratio and plasma levels of gastric inhibitory peptide (GIP). Moreover, pharmacokinetic evaluation of ß-RA supports its translational potential. Thus, ß-RA emerges as an efficient, safe, and translatable therapeutic option for the treatment and/or prevention of obesity, metabolic dysfunction-associated steatotic liver disease (MASLD).


Asunto(s)
Ratones Endogámicos C57BL , Obesidad , Animales , Obesidad/metabolismo , Obesidad/tratamiento farmacológico , Ratones , Masculino , Ubiquinona/análogos & derivados , Ubiquinona/farmacología , Ubiquinona/metabolismo , Ubiquinona/administración & dosificación , Tejido Adiposo Blanco/metabolismo , Tejido Adiposo Blanco/efectos de los fármacos , Tejido Adiposo Blanco/patología , Hígado/metabolismo , Hígado/patología , Metabolismo de los Lípidos/efectos de los fármacos , Administración Oral , Dieta Alta en Grasa/efectos adversos , Humanos
20.
Spectrochim Acta A Mol Biomol Spectrosc ; 320: 124599, 2024 Nov 05.
Artículo en Inglés | MEDLINE | ID: mdl-38865886

RESUMEN

The Attenuated Total Reflectance Fourier Transform Infrared Spectroscopy (ATR-FTIR) has been applied to determine salivary biomarkers with high sensitivity and cost-effectiveness. Our study aimed to test the hypothesis that the spectral profile of saliva demonstrates distinct vibrational modes corresponding to different exercise protocols, thereby facilitating exercise monitoring. Saliva samples were collected from trained male subjects at three intervals: pre-exercise, post-exercise, and 3 h post-exercise. The protocols included acute sessions of continuous exercise (CE), high-intensity interval exercise (HIIE), and resistance exercise (RE). ATR-FTIR analysis revealed that salivary biochemical components changed uniquely with each exercise protocol. Specific spectral vibrational modes were identified as potential biomarkers for each exercise type. Notably, the salivary spectrum pattern of CE closely resembled that of HIIE, whereas RE showed minor alterations. Furthermore, we attempted to apply an algorithm capable of distinguishing the spectral range that differentiates the exercise modalities. This pioneering study is the first to compare changes in saliva spectra following different exercise protocols and to suggest spectrum peaks of vibrational modes as markers for specific types of exercises. We emphasize that the spectral wavenumbers identified by FTIR could serve as practical markers in distinguishing between different exercise modalities, with sensitivity, specificity, and accuracy correlating with the metabolic changes induced by exercise. Therefore, this study contributes a panel of ATR-FTIR spectral wavenumbers that can be referenced as a spectral signature capable of distinguishing between resistance and endurance exercises.


Asunto(s)
Ejercicio Físico , Saliva , Humanos , Saliva/química , Saliva/metabolismo , Espectroscopía Infrarroja por Transformada de Fourier/métodos , Masculino , Ejercicio Físico/fisiología , Adulto Joven , Adulto , Biomarcadores/análisis
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