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1.
Int J Biol Macromol ; : 132354, 2024 May 13.
Artigo em Inglês | MEDLINE | ID: mdl-38750852

RESUMO

The utilization of biopolymer-based food packaging holds significant promise in aligning with sustainability goals and enhancing food safety by offering a renewable, biodegradable, and safer alternative to traditional synthetic polymers. However, these biopolymer-derived films often exhibit poor barrier and mechanical properties, potentially limiting their commercial viability. Desirable barrier properties, such as moisture and oxygen resistance, are critical for preserving and maintaining the quality of packaged food products. This review comprehensively explores different traditional and advance methodologies employed to access the barrier properties of edible films. Additionally, this review thoroughly examines various approaches aimed at enhancing the barrier properties of edible films, such as the fabrication of multilayer films, the selection of biopolymers for composite films, as well as the integration of plasticizers, crosslinkers, hydrophobic agents, and nanocomposites. Moreover, the influence of process conditions, such as preparation techniques, homogenization, drying conditions, and rheological behavior, on the barrier properties of edible films has been discussed. The review provides valuable insights and knowledge for researchers and industry professionals to advance the use of biopolymer-based packaging materials and contribute to a more sustainable and food-safe future.

2.
Sci Rep ; 14(1): 10588, 2024 05 08.
Artigo em Inglês | MEDLINE | ID: mdl-38719919

RESUMO

Solitary wave solutions are of great interest to bio-mathematicians and other scientists because they provide a basic description of nonlinear phenomena with many practical applications. They provide a strong foundation for the development of novel biological and medical models and therapies because of their remarkable behavior and persistence. They have the potential to improve our comprehension of intricate biological systems and help us create novel therapeutic approaches, which is something that researchers are actively investigating. In this study, solitary wave solutions of the nonlinear Murray equation will be discovered using a modified extended direct algebraic method. These solutions represent a uniform variation in blood vessel shape and diameter that can be used to stimulate blood flow in patients with cardiovascular disease. These solutions are newly in the literature, and give researchers an important tool for grasping complex biological systems. To see how the solitary wave solutions behave, graphs are displayed using Matlab.


Assuntos
Dinâmica não Linear , Humanos , Modelos Cardiovasculares , Vasos Sanguíneos/fisiologia , Velocidade do Fluxo Sanguíneo , Algoritmos
3.
Sci Rep ; 14(1): 11679, 2024 05 22.
Artigo em Inglês | MEDLINE | ID: mdl-38778088

RESUMO

A pilot implementation of the rapid diagnostic test program was performed to collect evidence of the feasibility, acceptability, and uptake of the COVID-19 AgRDT in Tanzania. We conducted a prospective cross-sectional study in the community to provide quantitative details of the pilot implementation of the antigen rapid diagnostic test (AgRDT) in Tanzania. This study was undertaken between March 2022 and September 2022. The pilot was implemented by distributing and offering test kits to people suspected of having COVID-19 in Dar es Salaam through community health workers. A total of 1039 participants consented to participate in the survey. All the participants reported having heard about the disease. The radio was the main source (93.2%) of information on COVID-19. With regard to prevention measures, approximately 930 (89.5%) of the respondents thought that COVID-19 could be prevented. Approximately 1035 (99.6%) participants reported that they were willing to have a COVID-19 AgRDT test and wait for 20 min for the results. With regard to the participants' opinions on the AgRDT device, the majority 907 (87.3%) felt comfortable with the test, and 1,029 (99.0%) were very likely to recommend the AgRDT test to their friends. The majority of participants 848 (83.1%) mentioned that they would be willing to pay for the test if it was not available for free. The results suggest overall good acceptance of the COVID-19 AgRDT test. It is evident that the use of trained community healthcare workers allows easy screening of all possible suspects and helps them receive early treatment.


Assuntos
COVID-19 , Agentes Comunitários de Saúde , Humanos , Tanzânia/epidemiologia , COVID-19/epidemiologia , COVID-19/prevenção & controle , Feminino , Masculino , Adulto , Projetos Piloto , Estudos Transversais , Pessoa de Meia-Idade , Estudos Prospectivos , SARS-CoV-2/isolamento & purificação , Adulto Jovem , Adolescente
4.
J Med Imaging Radiat Sci ; : 101421, 2024 May 11.
Artigo em Inglês | MEDLINE | ID: mdl-38735771

RESUMO

INTRODUCTION: To reduce the risks involved with ionising radiation exposure, typical values (TVs) and diagnostic reference levels (DRLs) have been established to help keep radiation doses 'as low as reasonably practicable. TVs/DRLs provide standardised radiation dose metrics that can be used for comparative purposes. However, for paediatrics, such values should consider the size of the child instead of their age. This study aimed to establish and compare paediatric TVs for chest, abdomen and pelvis radiography. METHODS: Study methods followed processes for establishing paediatric DRLs as outlined by the Health Information and Quality Authority (HIQA). Kerma-area product (KAP) values, excluding rejected images, were retrospectively acquired from the study institution's Picture Archiving and Communications System (PACS). Paediatric patients were categorised into the following weight-based groupings (5 to <15 kg, 15 to <30 kg, 30 to <50 kg, 50 to 80 kg) and stratified based on the examination that was performed (chest, abdomen, and pelvis), and where it was performed (the different X-ray rooms). Anonymised data were inputted into Microsoft Excel for analysis. Median and 3rd quartile KAP values were reported together with graphical illustrations. RESULTS: Data from 407 X-ray examinations were analysed. For the previously identified weight categories (5 to <15 kg, 15 to <30 kg, 30 to <50 kg, 50 to 80 kg), TVs for the chest were 0.10, 0.19, 0.37 and 0.53 dGy.cm2, respectively. For the abdomen 0.39, 1.04, 3.51 and 4.05 dGy.cm2 and for the pelvis 0.43, 0.87, 3.50 and 7.58 dGy.cm2. Between X-ray rooms TVs varied against the institutional TVs by -60 to 119 % (chest), -50 to 103 % (abdomen) and -14 and 24 %% (pelvis). CONCLUSION: TVs in this study follow established trends with patient weight and examination type and are comparable with published literature. Variations do exist between individual examination rooms and reasons are multifactorial. Given that age and size do not perfectly correlate further work should be undertaken around weight-based TVs/DRLs in the paediatric setting.

5.
Biosystems ; 240: 105216, 2024 Apr 29.
Artigo em Inglês | MEDLINE | ID: mdl-38692427

RESUMO

Cell shapes in tissues are affected by the biophysical interaction between cells. Tissue forces can influence specific cell features such as cell geometry and cell surface area. Here, we examined the 2-dimensional shape, size, and perimeter of pleural epithelial cells at various lung volumes. We demonstrated a 1.53-fold increase in 2-dimensional cell surface area and a 1.43-fold increase in cell perimeter at total lung capacity compared to residual lung volume. Consistent with previous results, close inspection of the pleura demonstrated wavy folds between pleural epithelial cells at all lung volumes. To investigate a potential explanation for the wavy folds, we developed a physical simulacrum suggested by D'Arcy Thompson in On Growth and Form. The simulacrum suggested that the wavy folds were the result of redundant cell membranes unable to contract. To test this hypothesis, we developed a numerical simulation to evaluate the impact of an increase in 2-dimensional cell surface area and cell perimeter on the shape of the cell-cell interface. Our simulation demonstrated that an increase in cell perimeter, rather than an increase in 2-dimensional cell surface area, had the most direct impact on the presence of wavy folds. We conclude that wavy folds between pleural epithelial cells reflects buckling forces arising from the excess cell perimeter necessary to accommodate visceral organ expansion.

6.
ACS Omega ; 9(19): 21538-21544, 2024 May 14.
Artigo em Inglês | MEDLINE | ID: mdl-38764656

RESUMO

In this paper, novel pyridines 2-8 were designed and synthesized via the one-pot, four-component reaction of 2-formylphenyl 4-tolylsulfonate with malononitrile, ammonium acetate, and phenols or 2-thioxo-1,3-thiazolidin-4-one or 6-aminopyrimidine-2,4(1H,3H)-dione under microwave irradiation in an aqueous solution of water and ethanol (1:1 ratio). The structures of new pyridines 2-8 were elucidated by elemental and spectral analyses such as IR, 1H NMR, and 13CNMR. This application has many advantages, such as having easy workup, eco-friendliness, reaction time being short (6-13 min), high production (94-98%), inexpensiveness, and avoiding the use of harmful solvents. Moreover, all compounds have been investigated as insecticidal agents against cowpea aphid (Aphis craccivora) insects, and the toxicity effect was studied, followed by the structure-activity relationship. From the LC50 values, it has been found that compounds 7 and 8 were excellent and promising insecticidal agents, with LC50 values of 0.05 and 0.09 ppm against nymphs and 0.93 and 1.01 ppm against adults of cowpea aphid. Furthermore, the obtained results indicated that compounds 2-8 can be applied as insecticidal agents for the control of cowpea aphids and to protect agricultural crops from this destructive pest, which effects crop production and causes major economic damage.

7.
Soc Sci Med ; 350: 116921, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38723586

RESUMO

Poor mental health among U.S. adolescents has reach epidemic proportions, with those from the Middle East and North African region exhibiting increased risk for distress and suicide ideation. This mixed-methods study analyzes quantitative data from first- and second-generation Arab adolescents (n = 171) and qualitative data from a participatory study conducted with 11 adolescents of the same population to understand the role of cultural resources in coping. Drawing on the Intersectional Theory of Cultural Repertoires in Health, we show that: 1) cultural resources underlie meaning-making throughout coping; 2) coping strategies are inseparable from the influence of peer and familial relationships, as dictated through the social norms and other cultural resources; 3) collectively held repertoires of coping can promote belonging, affirm identity, and protect against discrimination; and 4) the outcomes of coping strategies, and the culturally informed meaning individuals make of these outcomes, influence their future coping behaviors.


Assuntos
Adaptação Psicológica , Árabes , Estigma Social , Humanos , Adolescente , Feminino , Masculino , Árabes/psicologia , Árabes/estatística & dados numéricos , Pesquisa Qualitativa , Fotografação
8.
Bioorg Chem ; 147: 107410, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38688197

RESUMO

A new series of benzene-sulfonamide derivatives 3a-i was designed and synthesized via the reaction of N-(pyrimidin-2-yl)cyanamides 1a-i with sulfamethazine sodium salt 2 as dual Src/Abl inhibitors. Spectral data IR, 1H-, 13C- NMR and elemental analyses were used to confirm the structures of all the newly synthesized compounds 3a-i and 4a-i. Crucially, we screened all the synthesized compounds 3a-i against NCI 60 cancer cell lines. Among all, compound 3b was the most potent, with IC50 of 0.018 µM for normoxia, and 0.001 µM for hypoxia, compared to staurosporine against HL-60 leukemia cell line. To verify the selectivity of this derivative, it was assessed against a panel of tyrosine kinase EGFR, VEGFR-2, B-raf, ERK, CK1, p38-MAPK, Src and Abl enzymes. Results revealed that compound 3b can effectively and selectively inhibit Src/Abl with IC500.25 µM and Abl inhibitory activity with IC500.08 µM, respectively, and was found to be more potent on these enzymes than other kinases that showed the following results: EGFR IC500.31 µM, VEGFR-2 IC500.68 µM, B-raf IC500.33 µM, ERK IC501.41 µM, CK1 IC500.29 µM and p38-MAPK IC500.38 µM. Moreover, cell cycle analysis and apoptosis performed to compound 3b against HL-60 suggesting its antiproliferative activity through Src/Abl inhibition. Finally, molecular docking studies and physicochemical properties prediction for compounds 3b, 3c, and 3 h were carried out to investigate their biological activities and clarify their bioavailability.


Assuntos
Antineoplásicos , Proliferação de Células , Relação Dose-Resposta a Droga , Desenho de Fármacos , Ensaios de Seleção de Medicamentos Antitumorais , Inibidores de Proteínas Quinases , Proteínas Proto-Oncogênicas c-abl , Quinases da Família src , Humanos , Antineoplásicos/farmacologia , Antineoplásicos/síntese química , Antineoplásicos/química , Apoptose/efeitos dos fármacos , Proliferação de Células/efeitos dos fármacos , Guanidina/farmacologia , Guanidina/química , Guanidina/síntese química , Guanidina/análogos & derivados , Células HL-60 , Leucemia/tratamento farmacológico , Leucemia/patologia , Simulação de Acoplamento Molecular , Estrutura Molecular , Inibidores de Proteínas Quinases/farmacologia , Inibidores de Proteínas Quinases/síntese química , Inibidores de Proteínas Quinases/química , Proteínas Proto-Oncogênicas c-abl/antagonistas & inibidores , Proteínas Proto-Oncogênicas c-abl/metabolismo , Quinases da Família src/antagonistas & inibidores , Quinases da Família src/metabolismo , Relação Estrutura-Atividade , Cianamida/síntese química , Cianamida/química , Cianamida/farmacologia
9.
Malar J ; 23(1): 103, 2024 Apr 12.
Artigo em Inglês | MEDLINE | ID: mdl-38609987

RESUMO

BACKGROUND: The emergence of resistance to artemisinin-based combination therapy necessitates the search for new, more potent antiplasmodial compounds, including herbal remedies. The whole extract of Maytenus senegalensis has been scientifically investigated for potential biological activities both in vitro and in vivo, demonstrating strong antimalarial activity. However, there is a lack of data on the electrocardiographic effects of M. senegalensis in humans, which is a crucial aspect in the investigation of malaria treatment. Assessing the electrocardiographic effects of M. senegalensis is essential, as many anti-malarial drugs can inadvertently prolong the QT interval on electrocardiograms. Therefore, the study's objective was to evaluate the electrocardiographic effects of M. senegalensis in healthy adult volunteers. METHODS: This study is a secondary analysis of an open-label single-arm dose escalation. Twelve healthy eligible Tanzanian males, aged 18 to 45, were enrolled in four study dose groups. A single 12-lead electrocardiogram (ECG) was performed at baseline and on days 3, 7, 14, 28, and 56. RESULTS: No QTcF adverse events occurred with any drug dose. Only one volunteer who received the highest dose (800 mg) of M. senegalensis experienced a moderate transient change (△QTcF > 30 ms; specifically, the value was 37 ms) from baseline on day 28. There was no difference in maximum QTcF and maximum △QTcF between volunteers in all four study dose groups. CONCLUSIONS: A four-day regimen of 800 mg every 8 h of M. senegalensis did not impact the electrocardiographic parameters in healthy volunteers. This study suggests that M. senegalensis could be a valuable addition to malaria treatment, providing a safer alternative and potentially aiding in the battle against artemisinin-resistant malaria. The results of this study support both the traditional use and the modern therapeutic potential of M. senegalensis. They also set the stage for future research involving larger and more diverse populations to explore the safety profile of M. senegalensis in different demographic groups. This is especially important considering the potential use of M. senegalensis as a therapeutic agent and its widespread utilization as traditional medicine. Trial registration ClinicalTrials.gov, NCT04944966. Registered 30 June 2021-Retrospectively registered, https://clinicaltrials.gov/ct2/show/NCT04944966?term=kamaka&draw=2&rank=1.


Assuntos
Antimaláricos , Artemisininas , Malária , Maytenus , Adulto , Humanos , Masculino , Antimaláricos/farmacologia , Eletrocardiografia , Voluntários Saudáveis , Malária/tratamento farmacológico , Tanzânia , Voluntários , Adulto Jovem , Pessoa de Meia-Idade
11.
Cureus ; 16(3): e56790, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38650783

RESUMO

Introduction  At the start of the COVID-19 pandemic, many graduate medical education (GME) programs switched from in-person to virtual training to ensure a safe learning environment. However, the preferences of US residents in the wake of the COVID-19 pandemic are largely unknown. Objective The authors surveyed PGY-2 psychiatry residents about their perception of the pandemic's impact on their clinical skills, didactics experience, training preferences, and future career perceptions. Methods The cross-sectional study was conducted from October 31, 2021, to December 31, 2021. The authors emailed a survey to directors of US general psychiatry residency programs to disseminate to PGY-2 residents. The survey had Likert-scale and open-ended questions about the pandemic's perceived impact on PGY-1 training and future training preferences. The authors used descriptive statistics for Likert-scale questions and reflexive thematic analysis for open-ended questions. Results Out of an estimated 1800 residents, only 116 (6.4%) participated; post-pandemic preferences emerged. A strong preference was expressed for hybrid didactics, combining in-person and virtual learning. Virtual patient evaluations, especially in emergency and inpatient settings, were highly valued. Conversely, entirely virtual didactics and clinical rounds were deemed least preferred, emphasizing the importance of interactive, hands-on learning experiences. Conclusions Respondents emphasized the significance of incorporating hybrid models for both in-patient care and didactic sessions in GME. These preferences signify the need for adaptable and flexible approaches to education in psychiatry residency programs as we emerge from the pandemic.

12.
J Cogn Psychother ; 38(2): 157-168, 2024 Apr 16.
Artigo em Inglês | MEDLINE | ID: mdl-38631716

RESUMO

The Department of Veteran Affairs established Readjustment Counseling Service (RCS) to meet the mental health needs of active-duty service members, veterans, and their families. A diverse therapeutic skill set is needed to serve this complex population. To assess training needs, a national mixed-methods needs assessment consisting of a survey for RCS counselors and focus groups among counselors, RCS educational trainers, and national leadership was conducted. Survey results (n = 681) showed that RCS counselors were most interested in trainings on moral injury, acceptance and commitment therapy, and military sexual trauma (MST). Desired trainings aligned with populations served. Themes from focus groups revealed the need for foundational trainings so that all RCS counselors are adept in treating MST, moral injury, and posttraumatic disorder and proficient in caring for couples. Additionally, counselors desired advanced trainings tailored to individual counselors' needs. RCS counselors identified multiple trainings to help them treat those they serve.


Assuntos
Terapia de Aceitação e Compromisso , Conselheiros , Veteranos , Estados Unidos , Humanos , Veteranos/psicologia , Conselheiros/psicologia , Avaliação das Necessidades , United States Department of Veterans Affairs , Aconselhamento/métodos
13.
Prev Nutr Food Sci ; 29(1): 47-62, 2024 Mar 31.
Artigo em Inglês | MEDLINE | ID: mdl-38576886

RESUMO

Here we test a method of incorporating of plant extracts into popular snack foods to help control diabetes. Since some fresh vegetables contain antidiabetic compounds, ultrasound-assisted extraction was used to optimize their extraction of from spring onions, bunching onions, and celery for later incorporation into crackers. We compared various concentrations of ethanol used during extraction, after which they were exposed to an ultrasound processor whose amplitude and sonication time were also varied. The optimal extraction conditions were found to be an ethanol concentration of 44.08%, an amplitude of 80%, and a sonication time of 30 min. This resulted in the highest level of α-glucosidase inhibitory activity (i.e., 1,449.73 mmol ACE/g) and the highest extraction yield (i.e., 24.16%). The extract produced from these optimum conditions was then used as a constituent component of crackers at 0.625%, 1.25%, or 2.5% w/w. These biscuits were then produced at baking temperatures of 140°C, 150°C, or 160°C. We then measured the physical characteristics and bioactivities of sample biscuits from each treatment. We found that biscuits containing 2.5% vegetable combination extract and baked at 140°C had the highest total phenolic content, the strongest antioxidant performance, and showed the most substantial antidiabetic and antiobesity effects. Here we establish conditions for the effective extraction of antidiabetic functional ingredients via ultrasound from green leafy vegetables. We also provide a method of using these ingredients to prepare crackers with the aim of developing a functional antidiabetic snack food.

14.
Acta Haematol ; 2024 Apr 02.
Artigo em Inglês | MEDLINE | ID: mdl-38565097

RESUMO

BACKGROUND: Hemophilia A presents a significant health challenge in the Gulf region, where it has an especially high prevalence. There are several unmet needs associated with the management of hemophilia A in the region. The aim of this manuscript is to contextualize unmet management needs, provide recommendations to optimize care, and specify requirements for the establishment of gene therapy centers in the region. SUMMARY: An expert panel was assembled comprising ten clinical hematologists from Kuwait, Oman, Saudi Arabia, and the United Arab Emirates. The Delphi methodology was used to obtain a consensus on statements relating to several aspects of hemophilia A. A consensus was reached for all statements by means of an online, anonymized voting system. The consensus statements pertain to screening and diagnosis, treatment approaches, and requirements for the implementation of gene therapy. KEY MESSAGES: There are significant challenges that hinder the optimal management of hemophilia A in the Gulf region. The consensus statements presented provide specific recommendations to improve diagnostic and treatment approaches, promote multidisciplinary care, and optimize regional data generation and reporting. These statements also delineate requirements for the establishment of gene therapy centers for hemophilia A in the region.

15.
Cureus ; 16(3): e57189, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38681345

RESUMO

BACKGROUND: Urothelial carcinoma, a prevalent and aggressive urological malignancy, necessitates early detection for improved prognosis. Urine cytology serves as a cost-effective screening tool, but inconsistencies in reporting due to the lack of standardized criteria limit its efficacy. The Paris System for reporting urinary cytology (TPS) was introduced to address this issue, aiming to improve diagnostic accuracy. This retrospective study investigates the effectiveness of urine cytology in detecting high-grade urothelial carcinoma (HGUC) using TPS classification, specifically focusing on atypical urothelial cells (AUC) categorized as TPS-III and suspicious for high-grade urothelial carcinoma (SHGUC) categorized as TPS-IV. METHODS: We reviewed 470 urine cytology samples collected over two years at a tertiary healthcare center in Bahrain. All samples were re-evaluated using TPS classification by two independent consultant cytopathologists blinded to the original cytology report. The analysis included only samples categorized as TPS-III or TPS-IV with corresponding histopathology reports from confirmatory biopsies performed within four months of urine collection. Biopsy results were categorized as either benign/low-grade urothelial carcinoma (non-HGUC) or malignant (HGUC). The positive predictive value (PPV) of urine cytology for HGUC detection was calculated for both TPS-III and TPS-IV categories. Statistical significance was assessed using Fisher's exact test. RESULTS: Among the 470 urine cytology samples, 40 (8.5%) were classified as TPS-III or TPS-IV. Within this subset, 16 patients underwent confirmatory biopsies. Histopathological analysis revealed HGUC in 12 (75%) patients and non-HGUC (benign or low-grade) in 4 (25%) patients. The PPV of TPS-III for HGUC was 50%, while TPS-IV demonstrated a higher PPV of 90%. However, the difference between these values was not statistically significant (p = 0.25). This study explored the utility of TPS classification in urine cytology for HGUC detection. While SHGUC (TPS-IV) exhibited a numerically higher PPV compared to AUC (TPS-III), the lack of statistical significance necessitates further investigation. Our findings highlight the potential of TPS to improve the accuracy of urine cytology. TPS implementation has been shown to reduce the number of inconclusive "atypical" diagnoses, leading to more targeted investigations. CONCLUSION: Our study suggests that SHGUC (TPS-IV) within TPS classification framework might hold promise as a more specific indicator for HGUC compared to AUC (TPS-III). However, further research with larger cohorts is necessary to definitively establish the clinical significance of this observation. This investigation paves the way for future studies exploring the potential of TPS, particularly the SHGUC category, as a reliable screening tool for HGUC, potentially leading to earlier diagnoses and improved patient outcomes.

16.
J Refug Stud ; 37(1): 201-219, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38559595

RESUMO

Displacement is underway in Lebanon after financial collapse, but not as events of migration, rather, as processual disruption to people's lives that begins in place, preceding the potential outcome of forced migration. Financial collapse has shifted the population into extremes of constraint, dispossessing them of assets needed to live in valued ways. Widely circulated claims of an exodus are premature. Historic mass emigration from Lebanon occurred in times of capital availability whilst today's financial collapse denies most people of the capital needed to emigrate. Migration remains limited to the few with social and cultural capital unaffected by the crisis. This article was prompted by the author's observations of financial collapse whilst living in Lebanon in 2020 and long-standing engagement with the country. Regardless of whether mass emigration occurs, perhaps after the economy's recapitalization, the displacement process already underway warrants attention from refugee and forced migration studies.

17.
Tissue Cell ; 88: 102360, 2024 Mar 13.
Artigo em Inglês | MEDLINE | ID: mdl-38489913

RESUMO

PURPOSE: Intermittent fasting (IF) has been shown to induce a well-organized adaptive defense against stress inside the cells, which increases the production of anti-oxidant defenses, repair of DNA, biogenesis of mitochondria, and genes that combat inflammation. So, the goal of the current investigation was to identify the effects of IF on rats with adriamycin (ADR)-induced nephropathy and any potential underlying mechanisms. METHODS: Four groups of 40 mature Sprague-Dawley male rats were allocated as follow; control, fasting, ADR, and ADR plus fasting. After 8 weeks of ADR administration urine, blood samples and kidneys were taken for assessment of serum creatinine (Cr), BUN, urinary proteins, indicators of oxidative damage (malondialdehyde (MDA), reduced glutathione (GSH) and Catalase (CAT) levels), histopathological examinations, immunohistochemical examinations for caspase-3, Sirt1, aquaporin2 (AQP2) and real time PCR for antioxidant genes; Nrf2, HO-1 in kidney tissues. RESULTS: IF significantly improved serum creatinine, BUN and urinary protein excretion, oxidative stress (low MDA with high CAT and GSH), in addition to morphological damage to the renal tubules and glomeruli as well as caspase-3 production during apoptosis. Moreover, IF stimulates significantly the expression of Sirt1 and Nrf2/HO-1 and AQP2. CONCLUSION: AQP2, Sirt1, Nrf2/HO-1 signaling may be upregulated and activated by IF, which alleviates ADR nephropathy. Enhancing endogenous antioxidants, reducing apoptosis and tubulointerstitial damage, and maintaining the glomerular membrane's integrity are other goals.

18.
J Multidiscip Healthc ; 17: 1079-1090, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38505655

RESUMO

Background: Rhinitis medicamentosa is a nonallergic inflammation of the nasal mucosa caused by topical decongestants overuse. It mainly affects young and middle-aged adults. Therefore, the aim of this study was to investigate the attitudes of pharmacists regarding the utilization of over-the-counter intranasal decongestants. Methods: An online cross-sectional study was conducted from November 2021 to January 2022. The target population of the study included pharmacists who work in community pharmacies in Saudi Arabia. Binary logistic regression analysis was used to identify predictors of having positive attitude towards controlling the use of decongestant. Results: A total of 220 participants were included in this study. Around 15.0% of them reported that ND come with a physician prescription. The majority of the participants (87.3%) reported that the less than 5 days is the maximum safe duration for the use of NDs. Overall, the study participants demonstrated moderately positive attitude towards controlling the use of decongestant with a mean attitude score of 2.5 (standard deviation: 1.2) out of 5; which represents 50.0% of the maximum score. Binary logistic regression analysis identified that pharmacists aged 31-40 years were two-folds more likely to have positive attitude towards controlling the use of decongestant compared to others (p<0.05). Around 45.9% of them reported that they recommend other over-the-counter treatments like nasal irrigation, nasal steroids, or antihistamine if they see a patient with RM asking for ND with or without prescription. Conclusion: The majority of pharmacists in Saudi Arabia demonstrated sufficient awareness and understanding on the adverse effects associated with the excessive use of NDs. Rhinitis medicamentosa can be avoided by appropriate measures, highlighting the importance of raising awareness about the excessive use of decongestants among healthcare professionals and patients alike.

19.
Artigo em Inglês | MEDLINE | ID: mdl-38531090

RESUMO

BACKGROUND AND OBJECTIVES: Cranial reconstruction presents a significant challenge in cases involving pathologies with skull invasion, and various techniques have been used, including the intraoperative shaping of titanium mesh and the manual sculpting of bone cement serving as surrogates for the excised bone graft. In the context of prefabricated patient-specific implants (PSIs) for cranioplasty, precise surgical execution of craniotomies is paramount. This ensures optimal congruity between the implant and the defect created during the craniotomy, leading to a successful single-stage procedure encompassing both bone removal and reconstruction. This article presents a meticulous method for achieving such high-fidelity craniotomy and subsequent cranioplasty using PSIs in a single-stage surgery. METHODS: The procedure was implemented for 2 cases of meningiomas with osseous invasion. Through meticulous preoperative planning, the craniotomy template and implant were designed using computer-assisted design and manufactured on a 3-dimensional printer using the patient's computed tomography scans. Intraoperative fabrication of sterile polymethyl methacrylate replicas was achieved through the creation of silicone molds and subsequent injection molding techniques. Predesignated screw holes facilitated neuronavigation-assisted positioning of the template, aligning it accurately with the target site using registration points. Mini-screws firmly secured the template to the skull. Guided by the template, a craniotomy router performed the bone resection. On completion, the implant was affixed into place using plates and screws. RESULTS: This technique demonstrably facilitated a cost-effective, streamlined and precise application of prefabricated PSIs within a single-stage craniotomy-cranioplasty procedure. Subjective patient reports indicated high levels of satisfaction with the outcome. CONCLUSION: The template routed patient-specific implant 1-stage cranioplasty technique refines previous approaches through precise template localization on the skull, enabling an accurate craniotomy to match a prefabricated PSI. This single-stage procedure rivals hand-shaped methods in aesthetics and compares with the outcomes of 2-stage PSI cranioplasties. Additional studies are needed to validate our results.

20.
Cureus ; 16(2): e53889, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38465144

RESUMO

Mainzer-Saldino syndrome (MSS) or conorenal syndrome (CRS) is a rare autosomal recessive ciliopathy characterized by multiorgan affection, typically presents with a triad of nephronophthisis (NPHP), retinitis pigmentosa (RP), and cone-shaped epiphysis (CSE) with varying degrees of severity. A 20-month-old male is experiencing recurrent pneumonia attacks, an elevated serum creatinine level, proteinuria, and high anion gap partially compensated metabolic acidosis were incidentally discovered during one of his hospitalizations. A biopsy was performed, and the results supported the diagnosis of Alport syndrome. However, a subsequent genetic test suggests the presence of MSS. Aside from NPHP, RP and CSE tested positive. Based on the fact that MSS is not a common cause of end-stage renal disease (ESRD) in pediatrics, physicians should bear in mind genetic testing as a decisive tool. In this context, we highlighted a case of an accidentally discovered impaired renal function from first presentation to final diagnosis, with a valuable comparison with previously published similar cases.

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