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1.
Med Int (Lond) ; 4(6): 69, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39301327

RESUMO

The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) illness led to the coronavirus disease 2019 (COVID-19) pandemic, which has caused enormous health and financial losses, as well as challenges to global health. Iron deficiency anaemia (IDA) has been linked to adverse outcomes in patients infected with SARS-COV-2. The present study aimed to assess the association between IDA and the severity of COVID-19 in hospitalized patients. For this purpose, a retrospective data analysis of 100 patients with COVID-19 was conducted. Data of patients hospitalized with SARS-COV-2 infection confirmed by RT-PCR were collected between June, 2021 and March, 2022. The collected data included patient demographics, comorbidities, clinical signs, symptoms and IDA medical laboratory findings, including complete blood count and iron profiles. The results revealed that patients with COVID-19 admitted to the isolation unit represented 61.0% of the study sample, whereas 39.0% were admitted to the intensive care unit (ICU). No patients had stage I IDA, whereas 4 patients (4%) had stage II IDA. Furthermore, 19 patients (19.0%) had stage III IDA. A significantly higher proportion of patients with IDA (69.6%) were admitted to the ICU compared with those without IDA (29.9%, P<0.001). Additionally, patients with IDA had a higher proportion of a history of stroke compared with those without IDA (17.4 vs. 2.6%, respectively, P=0.024). The most common comorbidities identified were hypertension (29%), diabetes (23%) and heart problems (17%). On the whole, the present study demonstrates significant associations between IDA and a longer hospitalization period. A greater incidence of complications was observed in the hospitalized patients who were SARS-COV-2-positive. Although further studies with larger sample sizes are required to confirm these findings, the results presented herein may provide insight for physicians as regards the prevention and treatment of patients with IDA who are infected with coronavirus.

2.
Intellect Dev Disabil ; 62(5): 354-362, 2024 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-39317370

RESUMO

This study aimed to determine the effectiveness of a designed training program for nurses toward early detection of developmental disabilities among children aged 0-3 years. A group of 21 licensed nurses with professional experience ranging from 5-11 years participated in the study. The participants completed the measurements to evaluate their current knowledge, practice, and perception pre- and post-training program, as well as during a follow-up, in relation to early detection of disabilities. The results showed highly statistically significant difference between the studied nurses' total knowledge, perception, and practice in pre- and post-program application (p = 0.01). However, there was no statistically significant difference between the post-program and follow-up application (p = 0.180).


Assuntos
Deficiências do Desenvolvimento , Diagnóstico Precoce , Humanos , Egito , Pré-Escolar , Lactente , Feminino , Masculino , Adulto , Conhecimentos, Atitudes e Prática em Saúde , Enfermeiras e Enfermeiros , Competência Clínica , Recém-Nascido
3.
Life (Basel) ; 14(9)2024 Aug 29.
Artigo em Inglês | MEDLINE | ID: mdl-39337869

RESUMO

BACKGROUND: Angiotensin II is a peptide hormone vasopressor that activates angiotensin type 1 (AT1) receptors leading to vasoconstriction, the augmentation of arterial blood pressure (ABP), and organ perfusion. Angiotensin II was found to increase the ABP in catecholamine-refractory vasodilatory shock. Whether this effect improves the chances of survival or not remains inconclusive. Therefore, we conducted a systematic review and meta-analysis to evaluate the efficacy and safety of angiotensin II in vasoplegic shock. OBJECTIVES: To evaluate the clinical significance of angiotensin II effects in vasoplegic shock concerning the hemodynamic impact, mortality outcomes, and side effects. METHODS: Following PRISMA guidelines, we searched PubMed and EMBASE for experimental and observational studies published in English exploring the clinical outcomes of angiotensin II use in vasodilatory shock till 1 July 2024. Two independent authors assessed the quality and risk of bias of the included studies. A random effect model (Mantel-Haenszel) was used to combine data. The primary outcome was in-hospital mortality associated with angiotensin II use in comparison to standard therapy, while the secondary outcomes were mean arterial pressure (MAP) change, multi-organ failure (MOF), and the incidence of atrial fibrillation (AF). The Q test and I2 were used to examine heterogeneity, with I2 > 50% indicating marked heterogeneity. RESULTS: A total of eight studies (n = 974) comparing angiotensin II to standard therapy in vasoplegic shock were included in the systematic review, with three studies comprising 461 patients included in the final analysis of the primary outcome. Only one study evaluated the use of angiotensin II as a primary vasopressor, while the rest reported angiotensin II use in catecholamine-refractory vasodilatory shock. Overall, angiotensin II use was associated with similar in-hospital mortality compared to standard therapy (risk ratio [RR] = 0.83; 95% CI, 0.68-1.02, I2 = 0%). Likewise, there was no difference in MOF and AF (MOF: RR = 1.01; 95% CI, 0.61-1.65, I2 = 0%; AF: RR = 1.27; 95% CI, 0.38-4.23, I2 = 5%). However, angiotensin II use demonstrated a significant MAP increase (mean difference = -9.60; 95% CI, -9.71, -9.49, I2 = 0%). CONCLUSIONS: In vasodilatory shock, angiotensin II use demonstrated comparable in-hospital mortality compared to standard therapy. Nevertheless, it resulted in significant MAP change, which may encourage clinicians to use it in cases of profound hypotension.

4.
BMC Public Health ; 24(1): 2667, 2024 Sep 30.
Artigo em Inglês | MEDLINE | ID: mdl-39350101

RESUMO

PURPOSE: Prostate cancer is the most common cause for cancer mortality among men in Colombia. Law 100, in 1993, created a contributory regime (private insurance) and subsidized regime (public insurance) in which the subsidized regime had fewer benefits. However, Ruling T760 in July 2012 mandated that both systems must offer equal quality and access to healthcare. This study examines the impact of this change on prostate cancer mortality rates before and after 2012. METHODOLOGY: Prostate cancer mortality records from 2006 to 2020 were collected from Colombia's National Administrative Department of Statistics (DANE). Crude mortality was calculated by health insurance for different geographic areas and analyzed for changes between 2006 and 2012 and 2013-2020. Join-Point regressions were used to analyze trends by health insurance. RESULTS: Crude mortality rates in the contributory regime had a non-statistically significant decrease from 2006 to 2012 (AAPC= -1.32%, P = 0.14, 95% CI= -3.12, 0.52). In contrast, between 2013 and 2020 there was a non-statistically significant increase in crude mortality (AAPC 1.10%, P = 0.07, 95% CI= -0.09, 2.31). Comparatively, crude mortality in the subsidized regime, from 2006 to 2012, increased with a statistically significant AAPC of 2.51% (P < 0.001, 95% CI = 1.21, 3.83). From 2013 to 2020, mortality continued to increase with statistically significant AAPC of 5.52% (P < 0.001, 95% CI = 4.77, 6.27). Compared to their crude mortality differences from 2006 to 2020, from 2013 to 2020, the departments of Atlántico, Córdoba, Sucre, Arauca, Cesar, and Cauca had the highest rates in prostate cancer mortality in the subsidized regime compared to the contributory regime. CONCLUSION: Ruling T760 did not positively impact prostate cancer mortality, particularly of men in the subsidized regime.


Assuntos
Neoplasias da Próstata , Cobertura Universal do Seguro de Saúde , Humanos , Masculino , Colômbia/epidemiologia , Neoplasias da Próstata/mortalidade , Pessoa de Meia-Idade , Idoso , Benefícios do Seguro/estatística & dados numéricos , Acessibilidade aos Serviços de Saúde
5.
Sci Rep ; 14(1): 21055, 2024 09 10.
Artigo em Inglês | MEDLINE | ID: mdl-39251658

RESUMO

Nutritional status assessment, including amino acids, carnitine, and acylcarnitine profile, is an important component of diabetes care management, influencing growth and metabolic regulation. A designed case-control research included 100 Egyptian participants (50 T1DM and 50 healthy controls) aged 6 to 18 years old. The participants' nutritional status was assessed using the Body Mass Index (BMI) Z-score. Extended metabolic screening (EMS) was performed using a high-performance liquid chromatography-electrospray ionization-mass spectroscopy system to evaluate the levels of 14 amino acids, free carnitine, and 27 carnitine esters. T1DM children had considerably lower anthropometric Z-scores than the control group, with 16% undernutrition and 32% short stature. Total aromatic amino acids, phenylalanine, phenylalanine/tyrosine ratio, proline, arginine, leucine, isoleucine, free carnitine, and carnitine esters levels were considerably lower in the diabetic group, suggesting an altered amino acid and carnitine metabolism in type 1 diabetes. BMI Z-score showed a significant positive correlation with Leucine, Isoleucine, Phenylalanine, Citrulline, Tyrosine, Arginine, Proline, free carnitine, and some carnitine esters (Acetylcarnitine, Hydroxy-Isovalerylcarnitine, Hexanoylcarnitine, Methylglutarylcarnitine, Dodecanoylcarnitine, Tetradecanoylcarnitine, and Hexadecanoylcarnitine). HbA1c% had a significant negative correlation with Total aromatic amino acids, Branched-chain amino acid/Total aromatic amino acids ratio, Glutamic Acid, Citrulline, Tyrosine, Arginine, Proline, and certain carnitine esters (Propionylcarnitine, Methylglutarylcarnitine, Decanoylcarnitine, Octadecanoylcarnitine and Octadecenoylcarnitine), suggest that dysregulated amino acid and carnitine metabolism may be negatively affect the glycaemic control in children with TIDM. In conclusion, regular nutritional assessments including EMS of T1DM patients are critical in terms of diet quality and protein content for improved growth and glycemic management.


Assuntos
Aminoácidos , Carnitina , Diabetes Mellitus Tipo 1 , Estado Nutricional , Humanos , Criança , Masculino , Diabetes Mellitus Tipo 1/metabolismo , Feminino , Adolescente , Egito , Carnitina/análogos & derivados , Carnitina/metabolismo , Carnitina/sangue , Estudos de Casos e Controles , Aminoácidos/metabolismo , Índice de Massa Corporal
6.
J Migr Health ; 10: 100257, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39156887

RESUMO

Purpose: We aimed to compare cancer mortality among foreign- and Colombian populations in Colombia during the period of 2006-2020. Methods: This retrospective study utilized vital statistics from the Colombian National Department of Statistics (DANE). The dataset included variables such as age group, sex, country of permanent residency, insurance, education level, marital status, ethnicity, and cause of death. The population data to calculate rates was obtained from the Colombian census and the United Nations. Crude and adjusted rates as well as proportional mortality rates were calculated. Results: A total of 561,932 cancer deaths occurred in Colombia from 2006 to 2020. The foreign population (country of permanent residency different to Colombia) had a lower crude cancer mortality rate (31.1 per 100,000 inhabitants) than the Colombian population (81.9 per 100,000 inhabitants). However, the age-adjusted cancer mortality rate among the foreign population was 253.6 per 100,000, compared to 86.1 per 100,000 among the Colombian population. The proportional cancer mortality was 10.4 % among foreign population compared to 17.4 % among Colombian population. Conclusions: The proportional cancer mortality shows that the proportion of cancer-related deaths is greater among the Colombian population compared to the immigrant population. However, immigrants in Colombia have a higher age-adjusted cancer mortality rate than Colombians, indicating that immigrants have worse cancer outcomes than the Colombians even though the immigrant population is younger. This is likely due to the frequent barriers that immigrants encounter in accessing health care in Colombia. Future research needs to focus on access to care for the immigrant population by investigating cancer-related risk factors among immigrants and addressing their barriers to cancer prevention and treatment.

7.
Heliyon ; 10(12): e32992, 2024 Jun 30.
Artigo em Inglês | MEDLINE | ID: mdl-39022055

RESUMO

The current study integrates remote sensing, machine learning, and physicochemical parameters to detect hydrodynamic conditions and groundwater quality deterioration in non-rechargeable aquifer systems. Fifty-two water samples were collected from all water resources in Siwa Oasis and analyzed for physical (pH, T°C, EC, and TDS) chemical (SO4 2-, HCO3 -, NO3 -, Cl-, CO3 2-, SiO2, Mg2+, Na+, Ca2+, and K+), and trace metals (AL, Fe, Sr, Ba, B, and Mn). A digital elevation model supported by machine learning was used to predict the change in the land cover (surface lake area, soil salinity, and water logging) and its effect on water quality deterioration. The groundwater circulation and interaction between the deep aquifer (NSSA) and shallow aquifer (TCA) were detected from the pressure-depth profile of 27 production wells penetrating NSSA. The chemical facies evolution in the aquifer systems were (Ca-Mg-HCO3) in the first stage (freshwater of NSSA) and changed to (Na-Cl) type in the last stage (brackish water of TCA and springs). Support vector machine successfully predicted the rapid increase of the hypersaline lake area from 22.6 km2 to 60.6 km2 within 30 years, which deteriorated a large part of the cultivated land, reflecting the environmental risk of over-extraction of water for irrigation of agricultural land by flooding technique and lack of suitable drainage network. The waterlogging in the study was due to a reduction in the infiltration rate (low permeability) of the soil and quaternary aquifer. The cause of this issue could be a complete saturation of agricultural water with chrysotile, calcite, talc, dolomite, gibbsite, chlorite, Ca-montmorillonite, illite, hematite, kaolinite and K-mica (saturation index >1), giving the chance of these minerals to precipitate in the pore spaces of the soil and decrease the infiltration rate. The NSSA is appropriate for irrigation, whereas TCA is inappropriate due to potential salinity and magnesium risks. The best way to manage water resources in Siwa Oasis could be to use underground drip irrigation and combine water with TCA and NSSA.

8.
Minerva Anestesiol ; 90(7-8): 626-634, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39021138

RESUMO

BACKGROUND: The newly introduced ultrasound guided interfacial rhomboid intercostal and sub-serratus (RISS) block technique demonstrated promising efficacy in managing perioperative pain among patients undergoing abdominal and thoracic procedures. Thus, this study investigated the efficiency of bilateral ultrasound-guided RISS (US-RISS) as a perioperative pain control technique in male subjects receiving gynecomastia surgery. METHODS: This prospective randomized study involved sixty patients who underwent gynecomastia surgery. Individuals were randomly divided into two groups: the RISS group (N.=30) and the control group (N.=30). After anesthesia induction, the patients received bilateral US-RISS using 40 mL of 0.25% levobupivacaine, or conventional intravenous analgesia with no intervention, respectively. The primary outcome was the overall morphine consumption in 24 hours, and the secondary endpoints involved the time elapsed till rescue analgesia was requested, the quality of recovery after 24 hours and side effects' incidence. RESULTS: Morphine consumption was noticeably decreased in the RISS group compared to the control group, with 14.07±4.91 mg and 35.83±1.70 mg mean values, respectively (P<0.001). Furthermore, in the RISS group, the initial rescue analgesia request occurred significantly later than in the control group, with mean values of 15.58±1.41 hours and 0.96±0.63 hours, respectively (P<0.001). Additionally, within the RISS group, there was a high quality of recovery observed, with a low incidence of opioid-related adverse events in comparison to the control group. CONCLUSIONS: Bilateral US-RISS block is a beneficial intervention in gynecomastia surgery for pain management and improves the quality of recovery.


Assuntos
Ginecomastia , Lipectomia , Bloqueio Nervoso , Dor Pós-Operatória , Ultrassonografia de Intervenção , Humanos , Masculino , Ultrassonografia de Intervenção/métodos , Bloqueio Nervoso/métodos , Estudos Prospectivos , Adulto , Dor Pós-Operatória/prevenção & controle , Dor Pós-Operatória/tratamento farmacológico , Ginecomastia/cirurgia , Lipectomia/métodos , Adulto Jovem , Nervos Intercostais , Analgesia/métodos , Manejo da Dor/métodos , Resultado do Tratamento
10.
Animals (Basel) ; 14(11)2024 May 31.
Artigo em Inglês | MEDLINE | ID: mdl-38891693

RESUMO

The exploration of natural alternatives to antibiotics for enhancing productivity and performance in dairy cows is a crucial objective in farm animal management. This is the first study aimed at developing and evaluating the physicochemical properties and effects of Arabic gum-nano montmorillonite (AGNM) compost compared to ionophore monensin as feed additives on rumen fermentation, blood metabolites, and milk production of Holstein dairy cows. In a replicated 4 × 4 Latin square design, four multiparous mid-lactation Holstein dairy cows with an average body weight of 520 ± 15 kg were enrolled. The dietary treatments included a control diet (basal diet without feed additives), monensin diet [a basal diet supplemented with 35 mg/kg dry matter (DM) monensin], and AGNM diets comprising basal diet supplemented with two levels: low (L-AGNM) at 1.5 g/kg DM, and high (H-AGNM) at 3 g/kg DM. AGNM as a feed additive demonstrated promising physiochemical parameters, including containing highly bioactive components (α-amyrin and lupeol), functional groups (OH and Si-O), and essential mineral contents (Mg2+). Supplementations with H-AGNM significantly improved ruminal (p = 0.031) concentrations of total volatile fatty acids (VFAs), acetic (p = 0.05) and butyric (p = 0.05), enhanced (p < 0.05) digestibility of fiber and organic matter, while decreased (p = 0.013) estimated methane production. However, an increase (p = 0.04) in blood high-density lipoprotein levels and decrease (p < 0.05) in concentrations of creatinine (CREA), bilirubin (BILT), cholesterol (CHOL), and sodium (Na) were observed with H-AGNM supplementation. Both monensin and H-AGNM improved (p = 0.008) feed efficiency compared to L-AGNM; however, neither AGNM nor monensin affected the milk composition or energy status indicators of the dairy cows. The findings of this study highlight the potential of AGNM as a natural candidate to replace monensin in enhancing ruminal VFA production, nutrient digestibility, feed efficiency, blood metabolites, and milk yield in dairy cows.

11.
Pest Manag Sci ; 80(9): 4779-4789, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-38837578

RESUMO

BACKGROUND: The brown planthopper (BPH), Nilaparvata lugens, is one of the most destructive pests of rice. Owing to the rapid adaptation of BPH to many pesticides and resistant varieties, identifying putative gene targets for developing RNA interference (RNAi)-based pest management strategies has received much attention for this pest. The glucoprotein papilin is the most abundant component in the basement membranes of many organisms, and its function is closely linked to development. RESULTS: In this study, we identified a papilin homologous gene in BPH (NlPpn). Quantitative Real-time PCR analysis showed that the transcript of NlPpn was highly accumulated in the egg stage. RNAi of NlPpn in newly emerged BPH females caused nonhatching phenotypes of their eggs, which may be a consequence of the maldevelopment of their embryos. Moreover, the transcriptomic analysis identified 583 differentially expressed genes between eggs from the dsGFP- and dsNlPpn-treated insects. Among them, the 'structural constituent of cuticle' cluster ranked first among the top 15 enriched GO terms. Consistently, ultrastructural analysis unveiled that dsNlPpn-treated eggs displayed a discrete and distorted serosal endocuticle lamellar structure. Furthermore, the hatchability of BPH eggs was also successfully reduced by the topical application of NlPpn-dsRNA-layered double hydroxide nanosheets onto the adults. CONCLUSION: Our findings demonstrate that NlPpn is essential to maintaining the regular structure of the serosal cuticle and the embryonic development in BPH, indicating NlPpn could be a potential target for pest control during the egg stage. © 2024 Society of Chemical Industry.


Assuntos
Hemípteros , Proteínas de Insetos , Óvulo , Interferência de RNA , Hemípteros/genética , Hemípteros/crescimento & desenvolvimento , Hemípteros/fisiologia , Animais , Proteínas de Insetos/genética , Proteínas de Insetos/metabolismo , Feminino , Técnicas de Silenciamento de Genes
12.
Chem Biodivers ; 21(8): e202400701, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-38829745

RESUMO

Breast cancer remains a major global health issue, particularly affecting women and contributing significantly to mortality rates. Current treatments for estrogen receptor-positive breast cancers, such as aromatase inhibitors, are effective but often come with side effects and resistance issues. This study addresses these gaps by targeting aromatase, an enzyme crucial for estrogen synthesis, which plays a pivotal role in breast cancer progression. The innovative approach involves synthesizing novel bis-triazolopyridopyrimidines, designed to leverage the combined pharmacological benefits of pyridopyrimidine and 1,2,4-triazole structures, known for their potent aromatase inhibition and anti-cancer properties. These compounds were synthesized and characterized using 1H-NMR, 13C-NMR, and MS spectral analyses, and their anticancer efficacy was evaluated through MTT assays against MCF-7 breast cancer cell lines in vitro. Molecular docking analyses revealed strong binding energies with aromatase, particularly for compounds 5 b, 5 c, 10 a, and 10 b, indicating their potential as effective aromatase inhibitors. The study highlights these compounds as promising candidates for further development as therapeutic agents against breast cancer.


Assuntos
Antineoplásicos , Inibidores da Aromatase , Aromatase , Curcumina , Ensaios de Seleção de Medicamentos Antitumorais , Simulação de Acoplamento Molecular , Pirimidinas , Humanos , Inibidores da Aromatase/farmacologia , Inibidores da Aromatase/síntese química , Inibidores da Aromatase/química , Aromatase/metabolismo , Pirimidinas/química , Pirimidinas/farmacologia , Pirimidinas/síntese química , Antineoplásicos/farmacologia , Antineoplásicos/química , Antineoplásicos/síntese química , Relação Estrutura-Atividade , Células MCF-7 , Curcumina/farmacologia , Curcumina/química , Curcumina/síntese química , Curcumina/análogos & derivados , Estrutura Molecular , Proliferação de Células/efeitos dos fármacos , Triazóis/química , Triazóis/farmacologia , Triazóis/síntese química , Relação Dose-Resposta a Droga , Sobrevivência Celular/efeitos dos fármacos
13.
BMC Health Serv Res ; 24(1): 693, 2024 May 31.
Artigo em Inglês | MEDLINE | ID: mdl-38822370

RESUMO

BACKGROUND: Cervical cancer patients in Colombia have a lower likelihood of survival compared to breast cancer patients. In 1993, Colombia enrolled citizens in one of two health insurance regimes (contributory-private insurance and subsidized- public insurance) with fewer benefits in the subsidized regime. In 2008, the Constitutional Court required the Colombian government to unify services of both regimes by 2012. This study evaluated the impact of this insurance change on cervical cancer mortality before and after 2012. METHODS: We accessed 24,491 cervical cancer mortality records for 2006-2020 from the vital statistics of Colombia's National Administrative Department of Statistics (DANE). We calculated crude mortality rates by health insurance type and departments (geopolitical division). Changes by department were analyzed by rate differences between 2006 and 2012 and 2013-2020, for each health insurance type. We analyzed trends using join-point regressions by health insurance and the two time-periods. RESULTS: The contributory regime (private insurance) exhibited a significant decline in cervical cancer mortality from 2006 to 2012, characterized by a noteworthy average annual percentage change (AAPC) of -3.27% (P = 0.02; 95% CI [-5.81, -0.65]), followed by a marginal non-significant increase from 2013 to 2020 (AAPC 0.08%; P = 0.92; 95% CI [-1.63, 1.82]). In the subsidized regime (public insurance), there is a non-significant decrease in mortality between 2006 and 2012 (AAPC - 0.29%; P = 0.76; 95% CI [-2.17, 1.62]), followed by a significant increase from 2013 to 2020 (AAPC of 2.28%; P < 0.001; 95% CI [1.21, 3.36]). Examining departments from 2013 to 2020 versus 2006 to 2012, the subsidized regime showed fewer cervical cancer-related deaths in 5 out of 32 departments, while 6 departments had higher mortality. In 21 departments, mortality rates remained similar between both regimes. CONCLUSION: Improvement of health benefits of the subsidized regime did not show a positive impact on cervical cancer mortality in women enrolled in this health insurance scheme, possibly due to unresolved administrative and socioeconomic barriers that hinder access to quality cancer screening and treatment.


Assuntos
Cobertura Universal do Seguro de Saúde , Neoplasias do Colo do Útero , Humanos , Colômbia/epidemiologia , Neoplasias do Colo do Útero/mortalidade , Feminino , Pessoa de Meia-Idade , Adulto , Seguro Saúde/estatística & dados numéricos
14.
BMC Microbiol ; 24(1): 193, 2024 Jun 03.
Artigo em Inglês | MEDLINE | ID: mdl-38831400

RESUMO

INTRODUCTION: Optimal exploitation of the huge amounts of agro-industrial residuals that are produced annually, which endangers the ecosystem and ultimately contributes to climate change, is one of the solutions available to produce value-added compounds. AIM AND OBJECTIVES: This study aimed at the economic production and optimization of surfactin. Therefore, the production was carried out by the microbial conversion of Potato Peel Waste (PPW) and Frying Oil Waste (FOW) utilizing locally isolated Bacillus halotolerans. Also, investigating its potential application as an antimicrobial agent towards some pathogenic strains. RESULTS: Screening the bacterial isolates for surfactin production revealed that the strain with the highest yield (49 g/100 g substrate) and efficient oil displacement activity was genetically identified as B. halotolerans. The production process was then optimized utilizing Central Composite Design (CCD) resulting in the amelioration of yield by 11.4% (from 49 to 55.3 g/100 g substrate) and surface tension (ST) by 8.3% (from 36 to 33 mN/m) with a constant level of the critical micelle concentration (CMC) at 125 mg/L. Moreover, the physiochemical characterization studies of the produced surfactin by FTIR, 1H NMR, and LC-MS/MS proved the existence of a cyclic lipopeptide (surfactin). The investigations further showed a strong emulsification affinity for soybean and motor oil (E24 = 50%), as well as the ability to maintain the emulsion stable over a wide pH (4-10) and temperature (10-100 °C) range. Interestingly, surfactin had a broad-spectrum range of inhibition activity against Bacillus subtilis, Staphylococcus aureus, Pseudomonas aeruginosa, klebsiella pneumonia, and Candida albicans. CONCLUSION: Subsequently, the screening of the isolates and the utilized food-processing wastes along with the extraction technique resulted in a high yield of surfactin characterized by acceptable ST and CMC levels. However, optimization of the cultural conditions to improve the activity and productivity was achieved using Factor-At-A-Time (OFAT) and Central Composite Design (CCD). In contrast, surface activity recorded a maximum level of (33 mN/n) and productivity of 55.3 g/100 g substrate. The optimized surfactin had also the ability to maintain the stability of emulsions over a wide range of pH and temperature. Otherwise, the obtained results proved the promising efficiency of the surfactin against bacterial and fungal pathogens.


Assuntos
Bacillus , Resíduos Industriais , Lipopeptídeos , Solanum tuberosum , Bacillus/metabolismo , Bacillus/genética , Bacillus/isolamento & purificação , Lipopeptídeos/farmacologia , Lipopeptídeos/metabolismo , Lipopeptídeos/biossíntese , Lipopeptídeos/química , Lipopeptídeos/isolamento & purificação , Solanum tuberosum/microbiologia , Peptídeos Cíclicos/farmacologia , Peptídeos Cíclicos/química , Peptídeos Cíclicos/isolamento & purificação , Peptídeos Cíclicos/biossíntese , Testes de Sensibilidade Microbiana , Anti-Infecciosos/farmacologia , Anti-Infecciosos/metabolismo , Anti-Infecciosos/química , Anti-Infecciosos/isolamento & purificação , Agricultura/métodos
15.
Mol Divers ; 2024 Jun 10.
Artigo em Inglês | MEDLINE | ID: mdl-38856834

RESUMO

Hepatitis C Virus (HCV) is a significant health concern affecting a large portion of the global population and is a major cause of acute liver diseases, including cirrhosis. The variability in the HCV genome mainly results from the rapid replication facilitated by the NS5B polymerase, making it a prime target for anti-HCV drug development. This study explores potential compounds from marine bacteria that could inhibit the HCV NS5B polymerase by virtual screening, analyzing the energetics, and dynamic behavior of target-compound complexes. Virtual screening with the Lipinski filter was employed to select compounds from the marine bacteria database that demonstrated strong binding affinity to NS5B. The top four (CMNPD27216, CMNPD21066, CMNPD21065, and CMNPD27283) compounds, ranked by their re-docking scores, underwent additional evaluation. Molecular dynamics simulations for 200 ns were conducted to assess the dynamic stability of these complexes in a solvent environment. Furthermore, methods such as MM-GBSA, PCA, and free energy landscape analysis were used to analyze the system's energetics and identify stable conformations by locating transition states. The findings suggest that these compounds exhibit promising binding capabilities to HCV polymerase and could be considered for future experimental validation.

16.
Sci Rep ; 14(1): 11118, 2024 05 15.
Artigo em Inglês | MEDLINE | ID: mdl-38750062

RESUMO

This study focused on developing novel pyridine-3-carboxamide analogs to treat bacterial wilt in tomatoes caused by Ralstonia solanacearum. The analogs were synthesized through a multistep process and their structures confirmed using spectroscopy. Molecular docking studies identified the most potent analog from the series. A specific analog, compound 4a, was found to significantly enhance disease resistance in tomato plants infected with R. solanacearum. The structure-activity relationship analysis showed the positions and types of substituents on the aromatic rings of compounds 4a-i strongly influenced their biological activity. Compound 4a, with a chloro group at the para position on ring C and hydroxyl group at the ortho position on ring A, was exceptionally effective against R. solanacearum. When used to treat seeds, the analogs displayed remarkable efficacy, especially compound 4a which had specific activity against bacterial wilt pathogens. Compound 4a also promoted vegetative and reproductive growth of tomato plants, increasing seed germination and seedling vigor. In plants mechanically infected with bacteria, compound 4a substantially reduced the percentage of infection, pathogen quantity in young tissue, and disease progression. The analogs were highly potent due to their amide linkage. Molecular docking identified the best compounds with strong binding affinities. Overall, the strategic design and synthesis of these pyridine-3-carboxamide analogs offers an effective approach to targeting and controlling R. solanacearum and bacterial wilt in tomatoes.


Assuntos
Simulação de Acoplamento Molecular , Doenças das Plantas , Piridinas , Ralstonia solanacearum , Solanum lycopersicum , Solanum lycopersicum/microbiologia , Solanum lycopersicum/efeitos dos fármacos , Ralstonia solanacearum/efeitos dos fármacos , Doenças das Plantas/microbiologia , Piridinas/farmacologia , Piridinas/química , Relação Estrutura-Atividade , Antibacterianos/farmacologia , Antibacterianos/síntese química , Antibacterianos/química , Resistência à Doença
17.
Urology ; 191: 119-126, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-38788904

RESUMO

OBJECTIVE: To assess the role of intraprostatic injection of tranexamic acid (TXA) in reducing blood loss during transurethral resection of the prostate (TURP). METHODS: We conducted a randomized, controlled, double-blind trial involving 60 patients with benign prostatic hyperplasia aged 50-85years, undergoing monopolar TURP. Patients' prostatic weights ranged from 50 to 80 g. They were divided equally into two groups: group I received an intraprostatic injection of 1 g of TXA (Cyklokapron) dissolved in 50 mL of 0.9 % saline at multiple sites, while group II (control) received a 60 mL saline injection. Comprehensive clinical assessments and standard laboratory tests, including screenings for TXA hypersensitivity, were performed for all patients. RESULTS: Group I exhibited significantly lower intraoperative blood loss and hemoglobin concentration in irrigation fluid immediately postsurgery and at the 6-hour postoperative mark compared to group II (P < .05). Coagulation parameters-activated partial thromboplastin time, prothrombin time, fibrinogen level, and thrombin clotting time-showed no significant differences between the groups preoperatively or at 6 and 24 hours postoperatively. No thromboembolic events or other complications were reported in either group. CONCLUSION: The intraprostatic injection of TXA during monopolar TURP is safe, with minimal adverse effects, and effectively reduces blood loss. REGISTRATION: The study was registered on ClinicalTrials.gov No (ID: NCT05913466).


Assuntos
Antifibrinolíticos , Perda Sanguínea Cirúrgica , Hiperplasia Prostática , Ácido Tranexâmico , Ressecção Transuretral da Próstata , Humanos , Masculino , Ácido Tranexâmico/administração & dosagem , Ressecção Transuretral da Próstata/efeitos adversos , Ressecção Transuretral da Próstata/métodos , Idoso , Método Duplo-Cego , Hiperplasia Prostática/cirurgia , Perda Sanguínea Cirúrgica/prevenção & controle , Perda Sanguínea Cirúrgica/estatística & dados numéricos , Antifibrinolíticos/administração & dosagem , Pessoa de Meia-Idade , Idoso de 80 Anos ou mais
18.
Mol Divers ; 2024 May 04.
Artigo em Inglês | MEDLINE | ID: mdl-38702561

RESUMO

The increasing spread of the Monkeypox virus (MPXV) presents a significant public health challenge, emphasising the urgent requirement for effective treatments. Our study focuses on the VP39 Methyltransferase enzyme of MPXV as a critical target for therapy. By utilising virtual screening, we investigated natural compounds with structural similarities to sinefungin, a broad-acting MTase inhibitor. From an initial set of 177 compounds, we identified three promising compounds-CNP0346326, CNP0343532, and CNP008361, whose binding scores were notably close to that of sinefungin. These candidates bonded strongly to the VP39 enzyme, hinting at a notable potential to impede the virus. Our rigorous computational assays, including re-docking, extended molecular dynamics simulations, and energetics analyses, validate the robustness of these interactions. The data paint a promising picture of these natural compounds as front-runners in the ongoing race to develop MPXV therapeutics and set the stage for subsequent empirical trials to refine these discoveries into actionable medical interventions.

19.
J Minim Invasive Gynecol ; 31(8): 674-679, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-38705377

RESUMO

STUDY OBJECTIVE: To determine the long-term costs of hysterectomy with minimally invasive sacrocolpopexy (MISCP) versus uterosacral ligament suspension (USLS) for primary uterovaginal prolapse repair. DESIGN: A hospital-based decision analysis model was built using TreeAge Pro (TreeAge Software Inc, Williamstown, MA). Those with prolapse were modeled to undergo either vaginal hysterectomy with USLS or minimally invasive total hysterectomy with sacrocolpopexy (MISCP). We modeled the chance of complications of the index procedure, prolapse recurrence with the option for surgical retreatment, complications of the salvage procedure, and possible second prolapse recurrence. The primary outcome was cost of the surgical strategy. The proportion of patients living with prolapse after treatment was the secondary outcome. SETTING: Tertiary center for urogynecology. PATIENTS: Female patients undergoing surgical repair by the same team for primary uterovaginal prolapse. INTERVENTIONS: Comparison analysis of estimated long-term costs was performed. MEASUREMENTS AND MAIN RESULTS: Our primary outcome showed that a strategy of undergoing MISCP as the primary index procedure cost $19 935 and that undergoing USLS as the primary index procedure cost $15 457, a difference of $4478. Furthermore, 21.1% of women in the USLS group will be living with recurrent prolapse compared to 6.2% of MISCP patients. Switching from USLS to MISCP to minimize recurrence risk would cost $30 054 per case of prolapse prevented. Additionally, a surgeon would have to perform 6.7 cases by MISCP instead of USLS in order to prevent 1 patient from having recurrent prolapse. CONCLUSION: The higher initial costs of MISCP compared to USLS persist in the long term after factoring in recurrence and complication rates, though more patients who undergo USLS live with prolapse recurrence.


Assuntos
Procedimentos Cirúrgicos Minimamente Invasivos , Humanos , Feminino , Procedimentos Cirúrgicos Minimamente Invasivos/economia , Procedimentos Cirúrgicos Minimamente Invasivos/métodos , Prolapso Uterino/cirurgia , Prolapso Uterino/economia , Histerectomia Vaginal/economia , Histerectomia Vaginal/métodos , Vagina/cirurgia , Histerectomia/economia , Histerectomia/métodos , Sacro/cirurgia , Procedimentos Cirúrgicos em Ginecologia/economia , Procedimentos Cirúrgicos em Ginecologia/métodos , Recidiva , Pessoa de Meia-Idade , Prolapso de Órgão Pélvico/cirurgia , Prolapso de Órgão Pélvico/economia , Ligamentos/cirurgia
20.
Toxicol Appl Pharmacol ; 486: 116939, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38643951

RESUMO

Idiopathic pulmonary fibrosis (IPF) is an irreversible disease which considered the most fatal pulmonary fibrosis. Pulmonary toxicity including IPF is the most severe adverse effect of bleomycin, the chemotherapeutic agent. Based on the fact that, exogenous surfactants could induce alveolar stabilization in many lung diseases, the aim of this study was to explore the effects of low cost biosurfactants, surfactin (SUR) and sophorolipids (SLs), against bleomycin-induced pulmonary fibrosis in mice due to their antioxidant, and anti-inflammatory properties. Surfactin and sophorolipids were produced by microbial conversion of frying oil and potato peel wastes using Bacillus halotolerans and Candida parapsilosis respectively. These biosurfactants were identified by FTIR, 1H NMR, and LC-MS/MS spectra. C57BL/6 mice were administered the produced biosurfactants daily at oral dose of 200 mg kg-1 one day after the first bleomycin dose (35 U/kg). We evaluated four study groups: Control, Bleomycin, Bleomycin+SUR, Bleomycin+SLs. After 30 days, lungs from each mouse were sampled for oxidative stress, ELISA, Western blot, histopathological, immunohistochemical analyses. Our results showed that the produced SUR and SLs reduced pulmonary oxidative stress and inflammatory response in the lungs of bleomycin induced mice as they suppressed SOD, CAT, and GST activities also reduced NF-κß, TNF-α, and CD68 levels. Furthermore, biosurfactants suppressed the expression of TGF-ß1, Smad-3, and p-JNK fibrotic signaling pathway in pulmonary tissues. Histologically, SUR and SLs protected against lung ECM deposition caused by bleomycin administration. Biosurfactants produced from microbial sources can inhibit the induced inflammatory and fibrotic responses in bleomycin-induced pulmonary fibrosis.


Assuntos
Anti-Inflamatórios , Antioxidantes , Bleomicina , Candida parapsilosis , Camundongos Endogâmicos C57BL , MicroRNAs , Fibrose Pulmonar , Proteína Smad3 , Tensoativos , Fator de Crescimento Transformador beta1 , Animais , Fibrose Pulmonar/induzido quimicamente , Fibrose Pulmonar/prevenção & controle , Fibrose Pulmonar/patologia , Fibrose Pulmonar/metabolismo , Bleomicina/toxicidade , Antioxidantes/farmacologia , Fator de Crescimento Transformador beta1/metabolismo , Anti-Inflamatórios/farmacologia , Proteína Smad3/metabolismo , Camundongos , Candida parapsilosis/efeitos dos fármacos , Tensoativos/farmacologia , MicroRNAs/metabolismo , Masculino , Transdução de Sinais/efeitos dos fármacos , Bacillus , Pulmão/efeitos dos fármacos , Pulmão/patologia , Pulmão/metabolismo , Estresse Oxidativo/efeitos dos fármacos , Ácidos Oleicos
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