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1.
Neural Regen Res ; 20(5): 1324-1335, 2025 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-38845224

RESUMO

Spinal cord injury remains a major cause of disability in young adults, and beyond acute decompression and rehabilitation, there are no pharmacological treatments to limit the progression of injury and optimize recovery in this population. Following the thorough investigation of the complement system in triggering and propagating cerebral neuroinflammation, a similar role for complement in spinal neuroinflammation is a focus of ongoing research. In this work, we survey the current literature investigating the role of complement in spinal cord injury including the sources of complement proteins, triggers of complement activation, and role of effector functions in the pathology. We study relevant data demonstrating the different triggers of complement activation after spinal cord injury including direct binding to cellular debris, and or activation via antibody binding to damage-associated molecular patterns. Several effector functions of complement have been implicated in spinal cord injury, and we critically evaluate recent studies on the dual role of complement anaphylatoxins in spinal cord injury while emphasizing the lack of pathophysiological understanding of the role of opsonins in spinal cord injury. Following this pathophysiological review, we systematically review the different translational approaches used in preclinical models of spinal cord injury and discuss the challenges for future translation into human subjects. This review emphasizes the need for future studies to dissect the roles of different complement pathways in the pathology of spinal cord injury, to evaluate the phases of involvement of opsonins and anaphylatoxins, and to study the role of complement in white matter degeneration and regeneration using translational strategies to supplement genetic models.

2.
Heliyon ; 10(18): e37689, 2024 Sep 30.
Artigo em Inglês | MEDLINE | ID: mdl-39309917

RESUMO

The co-doping of vanadium pentoxide (V2O5) with rare-earth (RE) elements, namely 1.5 % holmium (Ho) and 1.5 % ytterbium (Yb) has been conducted using an eco-friendly, straightforward hydrothermal approach to assess the combined effects on structural, optical, and photocatalytic properties. The application of the density functional theory (DFT) approach effectively examined the impact of RE ions on the photocatalytic efficiency of co-doped V2O5. The stable orthorhombic crystal structure of co-doped V2O5 has been confirmed using DFT and X-ray diffraction without a secondary phase. It appears that homogeneous nucleation occurs while heterogeneous nucleation slows down in co-doped samples, as evidenced by the larger crystallite sizes in co-doped samples compared to doped ones. It means a result, the co-doped samples exhibit photodegrades more quickly and have a higher rate constant than the doped samples. This is because they have less dislocation density (4.26 × 10-3 nm-2) and internal micro-strain (4.93 × 10-3). The bandgap and degradation efficiency are determined by the UV-vis spectroscopy and found to be 2.33 eV and 95 %, respectively, at the optimal pH of 7 in the visible range. The co-doped sample has a rate constant of 24 × 10-3 min-1, which is the highest in the RE-doped V2O5 system. This is a good reason to think of co-doped V2O5 as a possible catalyst.

3.
Chem Biodivers ; : e202402098, 2024 Sep 24.
Artigo em Inglês | MEDLINE | ID: mdl-39316748

RESUMO

The exponential rise in pesticide resistance to conventional chemical pesticides is another major factor driving the development of novel insecticidal active agents. One approach to solving this problem is to investigate novel classes and environmentally safe insecticidal chemicals with a variety of modes of action. Among these techniques is the creation of novel tebufenozide derivatives. Tebufenozide belongs to the insect growth regulator class of insecticides and is regarded as one of the safest chemical insecticides ever. The toxicological and biochemical efficiency of each analog was assessed against the Spodoptera littoralis pest in both its second and fourth instar larvae. The bioassay results show that compound 7 was the most effective insecticidal agent, with LC50 values of 10.6.5 and 18.7 mg/L against S. littoralis larvae in their second and fourth instar larvae, respectively. Finally, it was shown how treatment with the LC50 of the examined substances affected the activity of many enzymes involved in the cuticle production of S. littoralis larvae in their fourth instar. From this study, it was concluded that Acyl hydrazide are helpful for the management of S. littoralis and will be an effective replacement for other synthetic insecticides.

4.
J Med Cases ; 15(10): 278-282, 2024 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-39328807

RESUMO

Catastrophic antiphospholipid syndrome (CAPS) is a rare, severe, and life-threatening form of antiphospholipid syndrome (APS). Early recognition and rapid treatment are of great importance to improve patient outcomes and decrease mortality. Herein, we present a case of lupus and APS with obstetric complications, recurrent thrombosis, and renal and hematological manifestations of APS which showed great response to the treatment.

5.
BMC Plant Biol ; 24(1): 888, 2024 Sep 30.
Artigo em Inglês | MEDLINE | ID: mdl-39343888

RESUMO

BACKGROUND: Cotton is one of the topmost fiber crops throughout the globe. During the last decade, abrupt changes in the climate resulted in drought, heat, and salinity. These stresses have seriously affected cotton production and significant losses all over the textile industry. The GhAGC kinase, a subfamily of AGC group and member of serine/threonine (Ser/Thr) protein kinases group and is highly conserved among eukaryotic organisms. The AGC kinases are compulsory elements of cell development, metabolic processes, and cell death in mammalian systems. The investigation of RNA editing sites within the organelle genomes of multicellular vascular plants, such as Gossypium hirsutum holds significant importance in understanding the regulation of gene expression at the post-transcriptional level. METHODS: In present work, we characterized twenty-eight GhAGC genes in cotton and constructed phylogenetic tree using nine different species from the most primitive to the most recent. RESULTS: In sequence logos analyses, highly conserved amino acid residues were found in G. hirsutum, G. arboretum, G. raimondii and A. thaliana. The occurrence of cis-acting growth and stress-related elements in the promoter regions of GhAGCs highlight the significance of these factors in plant development and abiotic stress tolerance. Ka/Ks levels demonstrated that purifying selection pressure resulting from segmental events was applied to GhAGC with little functional divergence. We focused on identifying RNA editing sites in G. hirsutum organelles, specifically in the chloroplast and mitochondria, across all 28 AGC genes. CONCLUSION: The positive role of GhAGCs was explored by quantifying the expression in the plant tissues under abiotic stress. These findings help in understanding the role of GhAGC genes under abiotic stresses which may further be used in cotton breeding for the development of climate smart varieties in abruptly changing climate.


Assuntos
Cloroplastos , Gossypium , Filogenia , Edição de RNA , Estresse Fisiológico , Gossypium/genética , Gossypium/fisiologia , Edição de RNA/genética , Estresse Fisiológico/genética , Cloroplastos/genética , Genoma de Planta , Mitocôndrias/genética , Proteínas de Plantas/genética , Proteínas de Plantas/metabolismo , Família Multigênica , Estudo de Associação Genômica Ampla , Regulação da Expressão Gênica de Plantas , RNA Mitocondrial/genética , Genes de Plantas
6.
Pharmaceuticals (Basel) ; 17(9)2024 Aug 31.
Artigo em Inglês | MEDLINE | ID: mdl-39338317

RESUMO

A series of novel thiazole-based chalcones were evaluated for their anticancer activity as potential tubulin polymerization inhibitors. In vitro anticancer screening for the thiazole derivatives 2a-2p exhibited broad-spectrum antitumor activity against various cancer cell lines particularly Ovar-3 and MDA-MB-468 cells with a GI50 range from 1.55 to 2.95 µΜ, respectively. Compound 2e demonstrated significant inhibition of tubulin polymerization, with an IC50 value of 7.78 µM compared to Combretastatin-A4 (CA-4), with an IC50 value of 4.93 µM. Molecular docking studies of compounds 2e, 2g, and 2h into tubulin further supported these findings, revealing that they bind effectively to the colchicine binding site, mirroring key interactions exhibited by CA-4. Computational predictions suggested favorable oral bioavailability and drug-likeness for these compounds, highlighting their potential for further development as chemotherapeutic agents.

7.
Pathol Res Pract ; 262: 155520, 2024 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-39217771

RESUMO

Carcinoma of the colon and rectum, also known as colorectal cancer, ranks as the third most frequently diagnosed malignancy globally. Sorafenib exhibits broad-spectrum antitumor activity against Raf, VEGF, and PDGF pathways in hepatocellular, thyroid, and renal cancers, but faces resistance in colorectal malignancies. 6-Shogaol, a prominent natural compound found in Zingiberaceae, exhibits antioxidant, anti-inflammatory, anticancer, and antiemetic properties. We investigated the influence of 6-shogaol on sorafenib's cytotoxic profile against colorectal cancer cell lines (HT-29, HCT-116, CaCo-2, and LS174T) through its effects on cellular accumulation and metabolism. Cytotoxicity was assessed using the sulpharodamine B assay, caspase-3 and c-PARP cleavage, cell cycle distribution analysis, and P-gp efflux activity. 6-Shogoal showed considerable cytotoxicity with decreased IC50 in colorectal cancer cell lines. Combining sorafenib and 6-shogaol increased c-PARP and pro-caspase-3 concentrations in HCT-116 cells compared to sorafenib alone. In combination, pro-caspase-3 concentrations were decreased in CaCo-2 cells compared to alone. Sorafenib combinations with 6-shogaol showed a significant drop in cell cycle distribution from 16.96±1.10 % to 9.16±1.85 %, respectively. At 100 µM, sorafenib and 6-shogaol showed potent and significant activity with intra-cellular rhodamine concentration on P-gp efflux activity in CRC cell lines. In conclusion, 6-shogaol substantially improved the cytotoxic profile of sorafenib by affecting its cellular uptake and metabolism. Future research should focus on dosage optimization and formulation and evaluate the efficacy and safety of the combination in animal models with colorectal cancer.


Assuntos
Catecóis , Neoplasias Colorretais , Sorafenibe , Humanos , Neoplasias Colorretais/tratamento farmacológico , Neoplasias Colorretais/patologia , Neoplasias Colorretais/metabolismo , Sorafenibe/farmacologia , Catecóis/farmacologia , Antineoplásicos/farmacologia , Sinergismo Farmacológico , Apoptose/efeitos dos fármacos , Linhagem Celular Tumoral , Células CACO-2 , Protocolos de Quimioterapia Combinada Antineoplásica/farmacologia , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico
8.
Biomed Pharmacother ; 179: 117365, 2024 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-39217837

RESUMO

Mangosteen (Garcinia mangostana) is well-known for its nutritional value and health benefits. Breast cancer is the most common cancer and the leading cause of cancer-related mortality among females worldwide. Here we show that the prenylated xanthones, α-mangostin, γ-mangostin, 9-hydroxycalabaxanthone (9-HCX), and garcinone E from the mangosteen pericarp exhibit cytotoxicity against a panel of human cancer cell lines including lung adenocarcinoma (A549), cervical carcinoma (HeLa), prostatic carcinoma (DU 145), pancreatic carcinoma (MIA PaCa-2), hepatocellular carcinoma (Hep G2), bladder urothelial cancer (5637), as well as the triple-negative breast cancer cells MDA-MB-231. In line with its higher predicted bioactivity score compared to other prenylated xanthones, 9-HCX induced the strongest antiproliferative and proapoptotic effects in MDA-MB-231 breast cancer xenografts in vivo. In different in vitro models, we demonstrate that prenylated xanthones from G. mangostana target mitochondria in cancer cells by inhibition of the mitochondrial respiratory chain complex II (α-mangostin, γ-mangostin, and garcinone E) and complex III (9-HCX) as shown in isolated mitochondria. Accordingly, oxidative mitochondrial respiration (OXPHOS) was inhibited, mitochondrial proton leak increased, and adenosine triphosphate (ATP) synthesis decreased as analyzed by Seahorse assay in MDA-MB-231 cells. Hence, the prenylated xanthones increased mitochondrial superoxide levels, induced mitochondrial membrane permeabilization, and initiated caspase 3/7-mediated apoptosis in MDA-MB-231 triple-negative breast cancer cells. Thus, prenylated xanthones from Garcinia mangostana exhibit anticancer activity based on interference with the mitochondrial respiration.


Assuntos
Garcinia mangostana , Mitocôndrias , Xantonas , Xantonas/farmacologia , Xantonas/isolamento & purificação , Humanos , Garcinia mangostana/química , Mitocôndrias/efeitos dos fármacos , Mitocôndrias/metabolismo , Linhagem Celular Tumoral , Animais , Prenilação , Feminino , Camundongos , Apoptose/efeitos dos fármacos , Respiração Celular/efeitos dos fármacos , Antineoplásicos Fitogênicos/farmacologia , Antineoplásicos Fitogênicos/isolamento & purificação , Camundongos Nus , Ensaios Antitumorais Modelo de Xenoenxerto , Proliferação de Células/efeitos dos fármacos , Neoplasias/tratamento farmacológico , Neoplasias/patologia , Neoplasias/metabolismo
9.
Materials (Basel) ; 17(17)2024 Aug 23.
Artigo em Inglês | MEDLINE | ID: mdl-39274578

RESUMO

A glass composition using TeO2-K2TeO3-Nb2O5-BaF2 co-doped with Er2O3/Ho2O3 and Er2O3/Yb2O3 was successfully fabricated. Its thermal stability and physical parameters were studied, and luminescence spectroscopy of the fabricated glasses was conducted. The optical band gap, Eopt, decreased from 2.689 to 2.663 eV following the substitution of Ho2O3 with Yb2O3. The values of the refractive index, third-order nonlinear optical susceptibility (χ(3)), and nonlinear refractive index (n2) of the fabricated glasses were estimated. Furthermore, the Judd-Ofelt intensity parameters Ωt (t=2,4,6), radiative properties such as transition probabilities (Aed), magnetic dipole-type transition probabilities (Amd), branching ratios (ß), and radiative lifetime (τ) of the fabricated glasses were evaluated. The emission cross-section and FWHM of the 4I13/2→4I15/2 transition around 1.54 µm of the glass were reported, and the emission intensity of the visible signal was studied under 980 nm laser excitation. The material might be a useful candidate for solid lasers and nonlinear amplifier devices, especially in the communications bands.

10.
Cureus ; 16(9): e70090, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-39318662

RESUMO

Systemic lupus erythematosus (SLE) is a chronic autoimmune disease that affects multiple systems with a variety of clinical manifestations and serological abnormalities. Overt myositis is a rare and not well-studied manifestation of SLE, which is associated with a more severe disease course and may be overlooked by clinicians. This case report describes a rare first presentation of SLE with myositis. An 18-year-old female patient presented with a three-month history of generalized muscle weakness, polyarthralgia, and rashes. Physical examination revealed malar rash, a dry scaly pigmented rash affecting the flanks, and a non-blanching purpuric rash with mottled discoloration and a well-defined ulceration, affecting both hands, suggestive of vasculitis. A pigmented atrophic patch on the right upper chest was also suggestive of discoid lupus. Further examination findings included bilateral upper and lower limb weakness affecting proximal muscles (Medical Research Council (MRC) grade 3/5) more than the distal muscles (MRC grade 4/5). The patient's investigation panel revealed leukopenia, anemia, elevated liver enzymes, and elevated erythrocyte sedimentation rate (ESR) and C-reactive protein (CRP) as well as significant elevation in creatinine kinase. Further antibody testing revealed positive antinuclear antibodies (ANA), anti-double-stranded DNA (anti-dsDNA), anti-Smith, and anti-U1-ribonucleoprotein (U1RNP), along with electrodiagnostic study supporting the diagnosis of SLE complicated by myositis and vasculitis. Treatment was initiated with prednisolone, hydroxychloroquine, methotrexate, folic acid, and omeprazole with sunscreen. Over the next several months, the patient demonstrated significant clinical and laboratory improvement, regaining full muscle power, with her vasculitis rash also improving and steroid tapering initiated to avoid side effects. This case highlights the importance of recognizing myositis as a rare potential first presentation of SLE and the need for heightened clinical awareness as early diagnosis and treatment is vital for improving long-term outcomes. This case adds to the existing literature and provides a reference for future clinical encounters with such complex cases.

11.
World Neurosurg ; 2024 Sep 24.
Artigo em Inglês | MEDLINE | ID: mdl-39326665

RESUMO

BACKGROUND: Relationships between low socioeconomic status (SES) and surgical outcomes are well established for certain procedures. However, scant literature has focused on relationships between median household income and lumbar fusion outcomes. METHODS: Patients who underwent fusion procedures between January 1, 2009 and December 31, 2020 were identified from the National Inpatient Sample (NIS) database. They were categorized into 4 quartiles, from lowest to highest, based on median household incomes in respective zip codes. We applied univariable and multivariable linear and logistic regression models to analyze perioperative data according to income quartiles. RESULTS: We included 2,826,396 patients. In multivariable regression, patients in the 3 lowest income quartiles exhibited higher rates of in-hospital cardiac events perioperatively, with odds ratios (OR) of 1.19 (95% confidence interval[CI]1.13-1.26, p<0.001), 1.10 (95%CI 1.05-1.16, p<0.001), and 1.06 (95%CI 1.01-1.12, p=0.011) for the first, second, and third quartiles, respectively. Patients in the lowest income (first) quartile had a higher occurrence of perioperative urinary complications (OR=1.07, 95%CI 1.03-1.12, p=0.001), systemic infectious complications (OR=1.17, 95% CI 1.04-1.32, p=0.006), neurological deficit (OR=1.17, 95%CI 1.06-1.30, p=0.002), and wound infections (OR=1.22, 95%CI 1.12-1.34, p<0.001). Those in the 3 lowest income quartiles were less likely to experience respiratory, gastrointestinal, and venous thrombotic complications (p<0.05). The lowest income quartile had protective associations for dural tears (OR 0.93, 95%CI 0.89-0.99, p=0.038) and postprocedure anemia across all 3 lower quartiles, with OR<1 and p<0.001. CONCLUSION: Reduced household income significantly affected perioperative outcomes after lumbar fusion and should be taken into consideration during the perioperative period.

12.
Clin Med (Lond) ; 24(5): 100241, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-39244036

RESUMO

Reproducible and standardised neurological assessment scales are important in quantifying research outcomes. These scales are often performed by non-neurologists and/or non-clinicians and must be robust, quantifiable, reproducible and comparable to a neurologist's assessment. COVID-CNS is a multi-centre study which utilised the Neurological Impairment Scale (NIS) as a core assessment tool in studying neurological outcomes following COVID-19 infection. We investigated the strengths and weaknesses of the NIS when used by non-neurology clinicians and non-clinicians, and compared performance to a structured neurological examination performed by a neurology clinician. Through our findings, we provide practical advice on how non-clinicians can be readily trained in conducting reproducible and standardised neurological assessments in a multi-centre study, as well as illustrating potential pitfalls of these tools.


Assuntos
COVID-19 , Doenças do Sistema Nervoso , Exame Neurológico , Humanos , COVID-19/diagnóstico , Exame Neurológico/métodos , Exame Neurológico/normas , Reprodutibilidade dos Testes , Doenças do Sistema Nervoso/diagnóstico , SARS-CoV-2 , Índice de Gravidade de Doença
13.
J Neurointerv Surg ; 2024 Sep 20.
Artigo em Inglês | MEDLINE | ID: mdl-39304195

RESUMO

BACKGROUND: A higher number of recanalization attempts reduces the efficacy of endovascular thrombectomy (EVT) for acute ischemic stroke secondary to large vessel occlusion (LVO). We assessed the impact of switching EVT techniques after a failed first pass on procedural and clinical outcomes. METHODS: This multicenter international study, conducted between January 2013 and December 2022, included patients undergoing EVT for anterior circulation LVO (internal carotid artery or M1 segments) with failed first pass recanalization. Propensity score matching identified a 1:1 matched cohort of patients in whom EVT technique was changed after a failed first pass and those with the same technique repeated. The primary outcome was successful recanalization at second attempt defined as Thrombolysis in Cerebral Ischemia (TICI) score of 2B or higher. Secondary outcomes were 90-day modified Rankin Score (mRS) and postprocedural hemorrhage. RESULTS: Among 2167 patients, converting to an alternative technique after a failed first pass was associated with higher odds of successful recanalization (adjusted OR (aOR)=1.5, p=0.041), and higher odds of mRS 0-2 at 90 days (aOR=1.6, p=0.005) without additional risk of symptomatic hemorrhage (p=0.379). Using a propensity score matched cohort of 490 patients, technique conversion at second attempt increased odds of successful recanalization at second attempt (aOR=1.32, p=0.006) and 90-day mRS 0-2 (aOR=1.38, p=0.008). CONCLUSIONS: Early conversion to an alternative EVT technique after a failed first pass recanalization in patients with AIS is associated with better technical success and clinical outcomes.

14.
Chest ; 2024 Sep 17.
Artigo em Inglês | MEDLINE | ID: mdl-39299388

RESUMO

BACKGROUND: Sarcoidosis is a granulomatous disease with varying courses of disease progression. Environmental exposures are thought to be contributors to disease onset. Exposure to air pollutants such as fine particulate matter (PM2.5) and nitrogen dioxide (NO2) have been identified as contributors to health disparities in lung diseases; little is known about these environmental exposures' associations with disease outcomes in sarcoidosis. RESEARCH QUESTION: Is higher exposure to PM2.5 and NO2 associated with worse lung function in sarcoidosis? STUDY DESIGN AND METHODS: We conducted a retrospective, cross-sectional study of individuals with pulmonary sarcoidosis seen from 2005-2015. Home addresses at the year of enrollment were geocoded and exposure to PM2.5 and NO2 was modeled using high resolution 1 km by 1 km annual surface exposure data during the year of enrollment. Racial and sex differences in exposure were determined. Multivariable linear regression models were used to examine the associations between PM2.5 and NO2 and the PFT measures, FVC, FEV1 and DLCO. RESULTS: Among the 415 individuals in the analysis, Black individuals had significantly higher exposure to PM2.5 and NO2 compared to non-Hispanic White individuals, 12.2 µg/m3 (SD 2.4) vs 11 µg/m3 (SD 2.2) and 6.3 ppb (SD 1.9) vs 5.0 ppb (SD 2.0) respectively. Every 1µg/m3 higher exposure to PM2.5 was associated with 1.12% lower DLCO% predicted (95% CI: -1.83 to -0.41, p<0.05). Every 1ppb higher exposure to NO2 was associated with 1.04% lower DLCO% predicted (95% CI: -1.91 to -0.18, p<0.05) in fully adjusted models. There were no significant associations between these pollutants and either FVC or FEV1% predicted. INTERPRETATION: Higher exposure to PM2.5 and NO2 was associated with worse DLCO% predicted. Black individuals with sarcoidosis were exposed to higher PM2.5 and NO2 than non-Hispanic White individuals. Air pollution exposure may be a contributor to reported health disparities in sarcoidosis.

17.
Front Nutr ; 11: 1388918, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39224179

RESUMO

Background: Soft drink consumption is continuing to grow worldwide, posing an increasing threat to people's health and general wellbeing. Consequently, we must understand the factors driving soft drink consumption to support improvements to nutrition. This paper adopts a qualitative research approach to explore individuals' perceptions of the factors linked to daily soft drink consumption among university students in Saudi Arabia. Materials and methods: This research employed purposive sampling to recruit a total of 19 students attending university in Al Madinah Province, Saudi Arabia, all of whom reported that they had previously consumed soft drinks. Over 3 months, data was gathered through a mixture of online and in-person semi-structured interviews. Once completed, the interviews were then transcribed and analyzed using inductive thematic analysis to identify the themes that emerged from the data. Results: This study reveals five core themes: taste, habit, price, environment and social context, and health concerns. Regarding health concerns, this study finds that the public's increasing concerns about health can reduce people's consumption of soft drinks. Significantly, this research reveals that the rise in health concerns among the public is being driven by the growing conversation about healthy food and the negative impact of consuming sugary soft drinks occurring in wider society. Conclusion: To conclude, this research underlines the value of adopting a holistic approach to promoting healthier drink choices (and thus reducing soft drink consumption). Interventions that focus on factors associated with soft drink consumption, such as habits, price, environment, social settings, health concerns, and taste, will be better able to decrease soft drink consumption and improve people's nutritional intake.

18.
Heliyon ; 10(16): e36096, 2024 Aug 30.
Artigo em Inglês | MEDLINE | ID: mdl-39253114

RESUMO

Diversification of cropping pattern coupled with the development of suitable technology packages is crucial to meet the ever-increasing demand for diversified products and sustained farmers' incomes. We evaluated different woodlot-based multistoried agroforestry systems for their effectiveness to mitigate the devastating effects of climate change by offering multifaceted benefits. Specifically, the present study aimed to assess the yield and probability of woodlot based multistoried agroforestry system with two vegetables, i.e., potato and brinjal during the period of 2019-2020. The vegetables were planted on the floor of the orchard where pineapple were planted in the same row with the trees. The experiment was laid out in a Randomized Complete Block Design (RCBD) with three replications. The results revealed that the upper-storied woody plants and sole vegetables received 100 % Photosynthetically Active Radiation (PAR) but incident light gradually decreased for brinjal and potato, which were grown at the floor of woody trees. The vegetables experienced 55.85(T3), 60.70(T2), 66.38(T1), and 100 (T4) % PAR under different tree crop combinations respectively. In both cases the highest BCR (3.75) and (3.09) was obtained in the ghoraneem + pineapple based multistoried agroforestry system for potato and brinjal production, respectively, which may considered as the best technique for higher production, crop diversification, and maximization of land use efficiency.

19.
BMC Med Educ ; 24(1): 1006, 2024 Sep 15.
Artigo em Inglês | MEDLINE | ID: mdl-39278910

RESUMO

BACKGROUND: The quality of education and the learning environment significantly influence dental trainees' success and experiences. However, the impact of the educational environment on dental residents in Saudi Arabia remains unexplored. This study aimed to assess the educational environment among dental residents at King Abdulaziz Medical City (KAMC) using the Postgraduate Hospital Educational Environment Measure (PHEEM) instrument, shedding light on its influence and providing insights for improvement. METHODS: A cross-sectional survey was conducted among 85 dental residents from various specialties at King Abdulaziz Medical City in Riyadh, Saudi Arabia, using the PHEEM instrument to evaluate the educational environment. Data analysis involved descriptive statistics, the Shapiro-Wilk test for score normality, and comparative analyses to explore the relationships between PHEEM scores and sociodemographic characteristics, specialties, residency years, and health habits. RESULTS: A total of 85 dental residents completed the survey. The majority of participants were aged 25 years and older (96.5%), female (56.5%), and single (78.8%). Most of the participating dental residents were Saudi board orthodontic residents (18.8%), and they were at the R2 level of training (32.9%). 88.2% were non-smokers, and 78.8% of them practiced physical activity. The PHEEM assessment revealed an overall score of 117.12 out of 160, with subscale scores of 41.54 out of 56 for role autonomy, 44.66 out of 60 for teaching, and 30.92 out of 44 for social support. Factors like age, marital status, and smoking were associated with lower scores, while being female and physically active were linked to higher scores. Notably, R3 residents had significantly lower scores than R1 residents (p < 0.05). CONCLUSION: This study evaluated the educational environment in Saudi board dental programs at KAMC, revealing an overall positive atmosphere but highlighting the need for improvement in certain areas. Despite some limitations, this research represents a significant step toward assessing and enhancing the educational environment for dental residents in Saudi Arabia, ultimately ensuring a better learning environment for future dental professionals.


Assuntos
Internato e Residência , Humanos , Arábia Saudita , Estudos Transversais , Feminino , Masculino , Adulto , Inquéritos e Questionários
20.
Cureus ; 16(8): e66837, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-39280536

RESUMO

Background Nonalcoholic fatty liver disease (NAFLD) is the most common liver disease globally, with its prevalence rising worldwide. This study aimed to evaluate the knowledge, attitudes, and determinants related to NAFLD among adults in Jazan, Saudi Arabia. Methods  A cross-sectional study was conducted using a validated online questionnaire distributed to 540 participants in Jazan Province. Data analysis involved descriptive and comparative statistics to assess knowledge, attitudes, and influencing factors related to NAFLD. Results The majority of participants (244, 45.2%) demonstrated poor knowledge about NAFLD, while 226 (41.9%) had fair knowledge. Notably, individuals aged 40-49, males, healthcare workers, those with obesity and diabetes mellitus, and those with a family history of NAFLD showed significantly higher levels of knowledge (p < 0.05). Regarding attitudes, most participants (64.4%) exhibited a positive attitude toward NAFLD, 28.3% had a satisfactory attitude, and only 7% demonstrated a poor attitude. Conclusion The findings highlight the need for targeted educational interventions and public awareness campaigns to enhance the general public's understanding of NAFLD. Providing accurate and up-to-date information about the disease, its consequences, and preventive measures is crucial for improving awareness and knowledge.

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