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1.
Rev Med Virol ; 34(1): e2498, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-38116958

RESUMO

Nowadays, viruses are not only seen as causative agents of viral infectious diseases but also as valuable research materials for various biomedical purposes, including recombinant protein production. When expressed in living or cell-free expression systems, viral structural proteins self-assemble into virus-like particles (VLPs). Mimicking the native form and size of viruses and lacking the genetic material, VLPs are safe and highly immunogenic and thus can be exploited to develop antiviral vaccines. Some vaccines based on VLPs against various infectious pathogens have already been licenced for human use and are available in the commercial market, the latest of which is a VLP-based vaccine to protect against the novel Coronavirus. Despite the success and popularity of VLP subunit vaccines, many more VLPs are still in different stages of design, production, and approval. There are still many challenges that require to be addressed in the future before this surface display system can be widely used as an effective vaccine strategy in combating infectious diseases. In this review, we highlight the use of structural viral proteins to produce VLPs, emphasising their intrinsic properties, structural classification, and main expression host systems. We also compiled the recent scientific literature about VLP-based vaccines to underline the recent advances in their application as a vaccine strategy for preventing and fighting virulent human pathogens. Finally, we presented the key challenges and possible solutions for VLP-based vaccine production.


Assuntos
Doenças Transmissíveis , Vacinas de Partículas Semelhantes a Vírus , Vacinas Virais , Vírus , Humanos , Vírus/genética , Vacinação
2.
Nature ; 574(7778): 353-358, 2019 10.
Artigo em Inglês | MEDLINE | ID: mdl-31619795

RESUMO

Since 2000, many countries have achieved considerable success in improving child survival, but localized progress remains unclear. To inform efforts towards United Nations Sustainable Development Goal 3.2-to end preventable child deaths by 2030-we need consistently estimated data at the subnational level regarding child mortality rates and trends. Here we quantified, for the period 2000-2017, the subnational variation in mortality rates and number of deaths of neonates, infants and children under 5 years of age within 99 low- and middle-income countries using a geostatistical survival model. We estimated that 32% of children under 5 in these countries lived in districts that had attained rates of 25 or fewer child deaths per 1,000 live births by 2017, and that 58% of child deaths between 2000 and 2017 in these countries could have been averted in the absence of geographical inequality. This study enables the identification of high-mortality clusters, patterns of progress and geographical inequalities to inform appropriate investments and implementations that will help to improve the health of all populations.


Assuntos
Mortalidade da Criança/tendências , Mortalidade Infantil/tendências , Criança , Geografia , Saúde Global , Humanos , Lactente , Recém-Nascido , Objetivos Organizacionais , Saúde Pública , Fatores Socioeconômicos , Nações Unidas
3.
Environ Manage ; 72(4): 805-817, 2023 10.
Artigo em Inglês | MEDLINE | ID: mdl-36881177

RESUMO

The impact of rainwater harvesting systems on biodiversity in hyperarid North African areas has not been assessed to date despite its demonstrated usefulness. The present study investigated this impact by considering the richness of wintering birds (RWB) in the Tataouine region (pre-Saharan Tunisia). We used data from three sets of variables-rainwater harvesting system type, microhabitat conditions, and topography-to determine the best predictors causing variation in the RWB by means of generalized linear mixed models. Our results show that the jessour system is the most attractive for the wintering bird species, followed by the tabia system, and lastly by the control areas. In the jessour system, RWB is influenced positively by slope and shrub cover and quadratically by tree cover, whereas this richness is affected positively by the extent of the herbaceous layer in the tabia system. In the control areas, RWB is negatively affected by elevation and quadratically affected by tree cover. Variation partitioning (VP) analysis reveals that (i) space is the most robust factor explaining the RWB in control areas (adj. R2 = 0.15, p = 0.001), (ii) microhabitat is central in the tabia system (adj. R2 = 0.10, p = 0.001), and (iii) the shared fraction between microhabitat and space is relevant in the jessour systems (adj. R2 = 0.20). Specific management actions, especially preserving, maintaining, and promoting these traditional systems, are suggested to improve the attraction of wintering bird species to the Tataouine region. The implementation of a scientific watch system is recommended to understand how changes take place in such an arid environment.


Assuntos
Biodiversidade , Árvores , Animais , Tunísia , Estações do Ano , Aves , Ecossistema
4.
J Tissue Viability ; 32(3): 417-422, 2023 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-37349229

RESUMO

AIM: Diabetic foot ulcers (DFUs), which are a common serious complication of diabetes mellitus, (lifetime occurrence, 19%-34%) account for at least 85% of all lower-limb amputations in diabetic patients. Special footwear (therapeutic footwear) is frequently recommended for such patients to adapt to changes in their foot structure. We aimed to, measure the effect of therapeutic footwear on DFU development and recurrence among previously affected patients in Saudi Arabia. MATERIALS AND METHODS: A cross-sectional study was performed between June and September 2022. The study targeted patients aged ≥18 years previously diagnosed with DFU. Participants were contacted by telephone to complete a questionnaire assessing footwear use and foot care. RESULTS: This study included 115 participants with a mean age of 61.9 ± 11.63; overall, 47% of participants used therapeutic footwear and 46% were adherent with wearing it. The DFU recurrence rate among patients who used therapeutic footwear was 27.8% versus 52.5% among patients who did not (p = 0.013). While using therapeutic footwear, patients with foot deformities reported a lower ulcer healing rate than those who did not (50% vs. 81.8%, p = 0.04). Patients who examined their feet had a lower recurrence rate than those who did not (38.5% vs. 50%, p = 0.43). CONCLUSION: Therapeutic footwear use was significantly associated with decreased DFU recurrence. Further investigation to enhance the evidence for the effectiveness of therapeutic footwear in DFUs is warranted.


Assuntos
Diabetes Mellitus , Pé Diabético , Úlcera do Pé , Humanos , Adolescente , Adulto , Pessoa de Meia-Idade , Idoso , Pé Diabético/terapia , Arábia Saudita , Estudos Transversais , Úlcera do Pé/etiologia ,
5.
Molecules ; 27(2)2022 Jan 16.
Artigo em Inglês | MEDLINE | ID: mdl-35056870

RESUMO

Food components have long been recognized to play a fundamental role in the growth and development of the human body, conferring protective functionalities against foreign matter that can be severe public health problems. Micronutrients such as vitamins and minerals are essential to the human body, and individuals must meet their daily requirements through dietary sources. Micronutrients act as immunomodulators and protect the host immune response, thus preventing immune evasion by pathogenic organisms. Several experimental investigations have been undertaken to appraise the immunomodulatory functions of vitamins and minerals. Based on these experimental findings, this review describes the immune-boosting functionalities of micronutrients and the mechanisms of action through which these functions are mediated. Deficiencies of vitamins and minerals in plasma concentrations can lead to a reduction in the performance of the immune system functioning, representing a key contributor to unfavorable immunological states. This review provides a descriptive overview of the characteristics of the immune system and the utilization of micronutrients (vitamins and minerals) in preventative strategies designed to reduce morbidity and mortality among patients suffering from immune invasions or autoimmune disorders.


Assuntos
Agentes de Imunomodulação/imunologia , Agentes de Imunomodulação/farmacologia , Minerais/imunologia , Minerais/farmacologia , Vitaminas/imunologia , Vitaminas/farmacologia , Animais , Humanos , Sistema Imunitário/efeitos dos fármacos
6.
Saudi Pharm J ; 30(6): 735-741, 2022 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-35812140

RESUMO

Purpose: This study aimed to assess the type, severity, seriousness, reasons, and outcomes of adverse drug reactions (ADRs) in the reports submitted to the regional spontaneous ADR database. Methods: A retrospective observational study was conducted to analyze all the Tabuk Health Affairs hospitals in Saudi Arabia submitted to SFDA from January 2020 to December 2020. The database was structured according to the Saudi ADR form's fields. The Naranjo algorithm was used to assess the causes of the ADRs (sFDA, 2022). Results: For 1 year, 2,349 ADR reports, along with 242 suspected drugs for 4,114 reactions, were submitted to SFDA. We found more males than females had ADRs (56.1% vs. 43.8%, P < 0.05).Antimicrobial drugs (26.9%), hematologic drugs (19.7%), and neuropsychiatric drugs (12.9%) were responsible for most ADRs. Most of the reactions were associated with the use of ciprofloxacin (7.7%), followed by the combination of lopinavir and ritonavir (4.1%). Two deaths resulted from salbutamol and cefazolin use. Based on the results of the Naranjo assessment of causality, cardiovascular events (9.9%) exhibited the highest score (≥9) for a causal relationship with the suspected drugs, followed by dermatological events (9.5%). Conclusions: The spontaneous report database is an important and valuable source of aftermarket authorization safety information. In our study, most drugs used as antimicrobial, cardiovascular, and hematologic therapies were associated with a higher risk of developing severe and serious events. We recommend monitoring and using medications optimally to ensure patient safety.

7.
J Ment Health ; 30(2): 194-201, 2021 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-33978543

RESUMO

BACKGROUND: The COVID-19 pandemic has seriously impacted various aspects of the society on a global scale. Schools and universities provide rich resources for adolescents and young adults to develop significant coping mechanisms. AIM: This study assessed the perceptions of risk, fear, mental health status, and coping strategies among Saudi student nurses amid the COVID-19 pandemic. METHODS: Using an online survey, the mental health of the students was assessed by the Depression, Anxiety and Stress Scale short form version, whereas the coping was assessed by the Brief-Coping Orientation of Problem Experienced scale. RESULTS: The students had modest risk perception and fear of contracting COVID-19. "Religion" was reported as the most frequently used coping strategy. Approximately 43.3%, 37.2%, and 30.9% of the respondents manifested some degree of depression, anxiety, and stress, respectively. Poor COVID-19 knowledge, perceived seriousness of COVID-19 in Saudi Arabia, perceived risk of COVID-19 infection, and the use of some coping strategies were predictors of fear. Knowing someone infected with COVID-19, fear, and several coping strategies predicted students' mental health. CONCLUSION: This study provides data that can be used to create educational and health policies that focus on the mental health of university students, specifically nursing students.


Assuntos
Adaptação Psicológica , Ansiedade/psicologia , COVID-19/psicologia , Depressão/psicologia , Medo/psicologia , Estresse Psicológico/psicologia , Estudantes de Enfermagem/psicologia , Adulto , Ansiedade/epidemiologia , Comorbidade , Estudos Transversais , Depressão/epidemiologia , Feminino , Humanos , Masculino , Pandemias , Percepção , Risco , SARS-CoV-2 , Arábia Saudita/epidemiologia , Estudantes de Enfermagem/estatística & dados numéricos , Adulto Jovem
8.
Mol Biol Rep ; 47(4): 2835-2843, 2020 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-32240468

RESUMO

Coxsackievirus B4 (CV-B4) is suspected to be an environmental factor that has the intrinsic capacity to damage the pancreatic beta cells and therefore causes insulitis and type 1 diabetes (T1D). Although vaccination against CV-B4 could reduce the incidence of this chronic auto-immune disease, there is currently no therapeutic reagent or vaccine in clinical use. By the employment of the Bac-to-Bac® vector system to express the major viral capsid protein, we contributed towards the development of a CV-B4 vaccine by producing CV-B4 virus-like particles (VLPs) from recombinant baculovirus in infected insect cells. In fact Western blot and Immunofluorescence analysis detected the viral protein 1 (VP1) in the cells resulting from the construction of a recombinant bacmid DNA carrying the key immunogenic protein then transfected in the insect cells. Sucrose gradient ultracentrifugation fractions of the infected cell lysates contained the recombinant protein and the electron microscopy demonstrated the presence of VLPs in these sucrose fractions. This study clearly shows for the first time the expression of CVB4 VP1 structure protein alone can form VLPs in the baculovirus-infected insect cell keeping conserved both characteristics and morphology.


Assuntos
Proteínas do Capsídeo/genética , Enterovirus Humano B/genética , Enterovirus Humano B/metabolismo , Animais , Baculoviridae/genética , Proteínas do Capsídeo/metabolismo , Linhagem Celular , Enterovirus Humano B/patogenicidade , Humanos , Insetos , Engenharia de Proteínas/métodos , Proteínas Recombinantes/genética , Proteínas Recombinantes/metabolismo , Vacinas , Vírion/genética
9.
Int J Med Sci ; 17(9): 1156-1166, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32547311

RESUMO

Hypercholesterolemia is a major risk factor for several cardiovascular and metabolic diseases as it triggers oxidative and pro-inflammatory cascades. Baicalein (BL) is a natural flavone with multiple therapeutic properties. The present study aimed to evaluate the potential protective effect of BL supplementation in hypercholesterolaemic rats. Rats were fed a high-cholesterol diet (HCD) for six weeks and then orally administered BL at two doses (25 and 50 mg/kg body weight/day) for four weeks. Serum lipids, liver enzymes, cardiac enzymes, renal markers, tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), interleukin-1ß (IL-1ß), interleukin-10 (IL-10), caspase-3, nitric oxide (NO) and prostaglandin-2 (PGE-2) were measured. In renal, hepatic, and cardiac tissues, thiobarbituric acid-reactive (TBARS) substance, glutathione (GSH), superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GPx) activities were measured. The altered levels of lipoproteins, aminotransferases, creatine kinases, and urea in hypercholesterolemic animals were significantly corrected by BL. Inflammatory and apoptotic biomarkers were also markedly attenuated in the HCD group following BL treatment. Hypercholesterolemia considerably induced the lipid peroxidation product, TBARS, and oxidative radicals in cardiac, hepatic, and renal tissues, which were attenuated by BL treatment, particularly, at the 50 mg/kg/day dose. BL enhanced the activities of superoxide dismutase, catalase, and glutathione peroxidase that were suppressed by HCD. Histological alterations induced by cholesterol overload in cardiac, hepatic, and renal tissues were ameliorated by BL supplementation. Our results show that the BL treatments (25 and 50 mg/kg/day) to HCD fed rats improved all the altered parameters. These results demonstrate that BL treatment improves cardiac, renal and hepatic dysfunctions in hypercholesterolaemic rats by activation of cellular antioxidant enzymes and/or suppression of inflammatory cytokines.


Assuntos
Flavanonas/uso terapêutico , Hipercolesterolemia/tratamento farmacológico , Hipercolesterolemia/metabolismo , Inflamação/tratamento farmacológico , Inflamação/metabolismo , Animais , Catalase/metabolismo , Glutationa Peroxidase/metabolismo , Peroxidação de Lipídeos/efeitos dos fármacos , Fígado/efeitos dos fármacos , Fígado/metabolismo , Masculino , Estresse Oxidativo/efeitos dos fármacos , Extratos Vegetais/uso terapêutico , Ratos , Ratos Wistar , Superóxido Dismutase/metabolismo
10.
Eur Respir J ; 50(3)2017 09.
Artigo em Inglês | MEDLINE | ID: mdl-28890435

RESUMO

This review of pain management in lung cancer is based on the presentation of four cases of thoracic oncology patients with pain at various stages of their disease. The approach will be multidisciplinary, involving a thoracic oncologist, radiologist, thoracic and orthopaedic spine surgeon, radiation therapist, pain medicine specialist, and palliative care specialist. This multispecialty approach to the management of different painful presentations in thoracic oncology will demonstrate the complexity of each case and the improved patient outcomes which result from the involvement of different disciplines working in concert.In the USA, Europe and other countries, palliative care specialists often become rapidly involved in the management of these patients, coordinating social care and providing psychological support.Thoracic and orthopaedic spine subspecialists provide surgical methods to control tumour invasion, and improve quality of life and preservation of function in settings of even diffuse metastatic disease. Similarly, thoracic oncology and radiation therapists utilise both therapeutic and palliative chemotherapeutic and radiation therapy regimens to prolong and improve quality of life.The pain medicine specialist can, in addition to medication management, offer a variety of interventional approaches including unique drug delivery systems such as epidural analgesia, regional anaesthesia techniques, and intrathecal pumps, as well as neuromodulation techniques and neurolytic or neuroablative procedures.In the USA, these specialists complete an additional fellowship year in pain medicine following the completion of an anaesthesiology, physical medicine and rehabilitation, neurology or psychiatry residency. These programmes are accredited by the Accreditation Council for Graduate Medical Education, or ACGME (www.acgme.org).


Assuntos
Manejo da Dor/métodos , Dor/fisiopatologia , Dor/reabilitação , Guias de Prática Clínica como Assunto , Neoplasias Torácicas/complicações , Humanos , Internato e Residência , Cuidados Paliativos/métodos , Qualidade de Vida , Ensaios Clínicos Controlados Aleatórios como Assunto , Tomografia Computadorizada por Raios X , Organização Mundial da Saúde
11.
Parasitol Res ; 114(7): 2587-97, 2015 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-25924793

RESUMO

Six species of terns, which breed on the Arabian Peninsula, were examined for head chewing lice of the genus Saemundssonia in four different islands around the coasts of Saudi Arabia, both in the Red Sea and in the Arabian Gulf. Four louse species were collected: Saemundssonia laticaudata, Saemundssonia melanocephalus, Saemundssonia meridiana and Saemundssonia sternae, of which three are recorded for the first time from this region. Also, we record three new host-louse associations for the world-Saemundssonia laticaudata and Saemundssonia sternae from white-cheeked terns and Saemundssonia melanocephalus from Saunders's terns-including a host-switch event of Saemundssonia laticaudata on white-cheeked terns in the Karan Island population. Gene bank data for the COI gene from seven species of Saemundssonia that infest marine birds were used to propose evolutionary trees using two different statistical methods: maximum parsimony (MP) and neighbour joining (NJ). The result indicated that the tree which was produced by NJ is likely to be more accurate as it appeared more compatible with hosts' phylogeny. The trees indicate relationships between tern Saemundssonia and congeneric species from other marine birds, especially from gulls. An ANOVA was also conducted to test the mean parasite load for each tern species studied, and results indicate that there is a relation between louse loads and colonization behaviour of the hosts. Data from lice examined and illustrations of lice and their hosts are also included.


Assuntos
Doenças das Aves/parasitologia , Charadriiformes/parasitologia , Iscnóceros/classificação , Infestações por Piolhos/veterinária , Animais , Cruzamento , Ecologia , Feminino , Iscnóceros/genética , Infestações por Piolhos/parasitologia , Masculino , Filogenia , Arábia Saudita
12.
Front Plant Sci ; 15: 1407789, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38903424

RESUMO

Waterlogging is a constant threat to crop productivity and ecological biodiversity. Plants face multiple challenges during waterlogging stress like metabolic reprogramming, hypoxia, nutritional depletion, reduction in gaseous exchange, pH modifications, microbiome alterations and disease promotion all of which threaten plants survival. Due to global warming and climatic change, the occurrence, frequency and severity of flooding has dramatically increased posing a severe threat to food security. Thus, developing innovative crop management technologies is critical for ensuring food security under changing climatic conditions. At present, the top priority among scientists is to find nature-based solutions to tackle abiotic or biotic stressors in sustainable agriculture in order to reduce climate change hazards to the environment. In this regard, utilizing plant beneficial microbiome is one of the viable nature based remedial tool for mitigating abiotic stressors like waterlogging. Beneficial microbiota provides plants multifaceted benefits which improves their growth and stress resilience. Plants recruit unique microbial communities to shield themselves against the deleterious effects of biotic and abiotic stress. In comparison to other stressors, there has been limited studies on how waterlogging stress affects plant microbiome structure and their functional traits. Therefore, it is important to understand and explore how waterlogging alters plant microbiome structure and its implications on plant survival. Here, we discussed the effect of waterlogging stress in plants and its microbiome. We also highlighted how waterlogging stress promotes pathogen occurrence and disease development in plants. Finally, we highlight the knowledge gaps and areas for future research directions on unwiring how waterlogging affects plant microbiome and its functional traits. This will pave the way for identifying resilient microbiota that can be engineered to promote their positive interactions with plants during waterlogging stress.

13.
Cureus ; 16(1): e52472, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-38371056

RESUMO

BACKGROUND: Fractures of the humerus diaphysis are common and often result from motor vehicle accidents (MVAs). Treatment methods range from nonoperative approaches to various operative techniques, including antegrade intramedullary nailing (AIMN) and dynamic compression plate (DCP) fixation. This study aimed to compare the cost effectiveness and outcomes of plating and nailing for humerus diaphyseal fractures. METHODS:  A retrospective cohort study involving 59 cases of humerus diaphyseal OTA/AO 12-A fractures was conducted at King Saud Medical City (KSMC), a level I trauma center located in the center region in Riyadh, Saudi Arabia. Patients treated with AIMN, anterolateral plating, or posterior plating were included. Data on demographics, clinical parameters, radiographic healing, and costs were collected and analyzed. RESULTS: The average surgical duration was shorter in the AIMN group compared to the anterolateral and posterior plating groups but with no statistical significance (P > 0.05). The average length of stay (LOS) was shorter, and the change in hemoglobin levels was lower in the AIMN group when compared to other groups but without a statistically significant difference (P > 0.05). The average cost of AIMN was significantly higher than that of anterolateral and posterior plating groups (P < 0.0001). CONCLUSION:  While both nailing and plating procedures are options for treating OTA/AO 12-A fractures, AIMN carries a higher overall procedural cost. The practice of drain placement in our study population is likely the cause of the increased LOS in the plating groups. Relative additional analgesic requirements were associated with AIMN. Surgeons should consider meticulous hemostasis to avoid drain placement, which can decrease LOS, thus possibly decreasing unnecessary treatment costs of humerus shaft fractures.

14.
Cureus ; 16(1): e51464, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-38298302

RESUMO

Background and aim Assessing the knowledge of healthcare professionals regarding the Airway, Breathing, Circulation, Disability, and Exposure (ABCDE) approach is crucial since it prioritizes the initial assessment and treatment of patients who are critically ill, regardless of the underlying cause or their age. Since adherence requires knowledge, this study aimed to evaluate the knowledge level of the ABCDE approach among healthcare professionals. Methods This cross-sectional study among healthcare professionals was performed from April to August 2023 in Taif City, Saudi Arabia. The study included healthcare professionals employed in departments exposed to patients with critical illnesses and excluded those from other specialties and individuals from outside Taif City. Data was collected via Google Forms using a previously validated questionnaire designed to assess the ABCDE approach knowledge among healthcare professionals. Statistical analysis was conducted using IBM SPSS, version 26. Results The study included 242 healthcare professionals with a mean (SD) age of 35.77 (9.93) years. About half of the participants were female (52.5%) nurses (50.8%) and had been working in intensive care units (ICU) and neonate intensive care units (NICU) (41.4%). The mean (SD) of the participants' working experience was 9.28 (8.295) years. The overall mean test score was 52.94 % (SD 16.27). The mean knowledge score among males was significantly higher than females (56.37% vs. 49.85%, respectively) (p-value= 0.001). The mean knowledge score was significantly higher among medical specialists and residents (63.308% and 55.67%) than among nurses (46.34%) (p-value <0.001). Attending an advanced trauma life support course and theoretical lecture significantly impacted the total knowledge score among the participants (p-values= 0.001 and <0.001, respectively). The total knowledge significantly increased with age (r: 0.265, p-value <0.001). Years of experience correlated with total knowledge score; with increasing years of experience, the total knowledge was significantly increased (r: 0.248, p-value <0.001). Conclusion The ABCDE approach is a valuable tool for the initial examination and treatment of patients in acute medical and surgical emergencies. The findings indicate that there is a need for further awareness programs and training on the ABCDE approach, as the total knowledge score among healthcare professionals was found to be suboptimal. Further research is needed to assess the association between knowledge level and clinical performance in different healthcare settings within Saudi Arabia.

15.
Plants (Basel) ; 13(11)2024 May 25.
Artigo em Inglês | MEDLINE | ID: mdl-38891276

RESUMO

Plants are an important source of essential bioactive compounds that not only have a beneficial role in human health and nutrition but also act as drivers for shaping gut microbiome. However, the mechanism of their functional attributes is not fully understood despite their significance. One such important plant is Crocus sativus, also known as saffron, which possesses huge medicinal, nutritional, and industrial applications like food and cosmetics. The importance of this plant is grossly attributed to its incredible bioactive constituents such as crocins, crocetin, safranal, picrocrocin, and glycosides. These bioactive compounds possess a wide range of therapeutic activities against multiple human ailments. Since a huge number of studies have revealed negative unwanted side effects of modern-day drugs, the scientific communities at the global level are investigating a large number of medicinal plants to explore natural products as the best alternatives. Taken into consideration, the available research findings indicate that saffron has a huge scope to be further explored to establish alternative natural-product-based drugs for health benefits. In this review, we are providing an update on the role of bioactive compounds of saffron as therapeutic agents (human disorders and antimicrobial activity) and its nutritional values. We also highlighted the role of omics and metabolic engineering tools for increasing the content of key saffron bioactive molecules for its mass production. Finally, pre-clinical and clinical studies seem to be necessary to establish its therapeutic potential against human diseases.

16.
Cureus ; 16(1): e51430, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-38298307

RESUMO

INTRODUCTION: As the primary cause of morbidity and mortality among older individuals, cardiovascular disease remains a major concern. Choosing between revascularization and medical management of elderly patients remains controversial. This study aims to evaluate the clinical implications of these treatment approaches in the context of non-ST-elevation myocardial infarction (NSTEMI) in octogenarian patients. METHODS: This observational cohort study involved 41 octogenarian patients who were diagnosed with NSTEMI from 2019 to 2021 and were managed by revascularization (with either percutaneous coronary intervention, coronary artery bypass graft surgery, or both) or conservative medical therapy. All NSTEMI patients were diagnosed based on symptoms, electrocardiographic changes, and cardiac biomarkers. The study compared the short- and long-term outcomes of 13 patients in the revascularization group and 28 in the medical therapy group. RESULTS: Overall, the mean patient age was 84.63 years. Eighteen patients were men (43.9%), and 23 were women (56.1%). The most prevalent disease among the sample was hypertension (34 patients, 82.9%), followed by diabetes mellitus (27 patients, 65.9%) and prior ischemic heart disease (21 patients, 51.2%). Almost all patients in the revascularization-treated group developed complications after the procedure (84.6%), while 46.4% of the patients in the medication-only group developed a complication later on. The revascularization-treated group showed higher mortality rates in both the short- and long-term (23.1% and 38.5%, respectively) compared to the medication-only group, which showed better survival rates numerically in both the short- and long-term (14.3% and 32.1%, respectively). This was not statistically significant. CONCLUSION: Revascularization treatment in elderly patients with NSTEMI was associated with a higher risk of complications and a higher mortality rate compared with conservative medical management. Patients managed with only medications had a better survival rate in both the short- and long-term.

17.
Poult Sci ; 103(2): 103298, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38128456

RESUMO

Quail, one of the most important sources of meat and eggs, can aid in the reduction of the meat crisis if they are raised and cared for by small farmers. The current study investigated the impact of eggshell color variety on egg quality traits and hatching parameters of Japanese quail Coturnix japonica eggs. Therefore, 1,075 eggs were collected from female quails when they were 10-wk old. These eggs were distributed based on the color of their eggshells into 5 different classifications: eggshell with color type 1, very dark distributed brown spots on brown eggshell; eggshell with color type 2, small black spots on a white eggshell; eggshell with color type 3, widespread brown spots on brown eggshell; eggshell with color type 4, bubble egg, pin dotted on grayish brown color eggshell; and eggshell with color type 5, small brown spots on very clearly white eggshell. The characteristics of hatchability, internal and external egg quality, and the rate of embryonic death were then determined. The results showed that the percentage of fertility and commercial and scientific hatchability was greatly affected by eggshell color. There were also variations in the percentage of hatched chicks', early mortality rates, and late mortality rates based on eggshell color. According to the results of the current study, eggshell color has a significant impact on egg weight, egg width, and percentages of eggshell, yolk, and albumen but has no effect on shape index, egg length, or egg elongation. Based on the results, eggshells with color types 2 and 3 were recommended for use in hatching procedures due to their high levels of fertility (92.01 and 91.63%, respectively), scientific hatchability (82.92 and 83.93%, respectively), commercial hatchability (76.56 and 77.32%, respectively), and hatched chick (5.50 and 6.70, respectively). In addition, the late embryonic mortality rate was 0.00% for eggshells with color type 3. Therefore, the color of the eggshell can be employed as a key factor in guiding the eggs that are produced, whether they are going to be consumed at the table or used for hatching, to make breeding easier.


Assuntos
Coturnix , Casca de Ovo , Feminino , Animais , Galinhas , Óvulo , Fertilidade , Codorniz , Ovos
18.
Cureus ; 16(4): e58024, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38738124

RESUMO

BACKGROUND: Cardiovascular diseases (CVDs) are the leading cause of death worldwide and are considered silent killers that threaten different age groups. The stressful lifestyle of resident physicians might make them vulnerable to CVDs. Since 2021, Egypt has recently reported more frequent sudden deaths of junior physicians after long shifts. Many factors can be associated with this prevalence, such as diabetes mellitus, increased blood pressure, or a sedentary lifestyle. Therefore, this study aimed to estimate the risk of developing heart attack and stroke within 10 years among resident physicians in Egypt with the goal of informing health policymakers to improve the healthcare systems for Egyptian physicians. METHODS: This cross-sectional study was conducted at six university teaching hospitals around Egypt: Cairo, Al-Azhar, Zagazig, Menoufia, South Valley, and Sohag. Data were collected on the ground using a questionnaire developed from a validated tool, the QRISK3 calculator, developed by the National Health Service, and used to measure the development of CVDs and stroke over the next 10 years. RESULTS: Four hundred twenty-eight resident physicians filled out the study questionnaire, including 224 (52.3%) females. The mean age of the participants was 28.22 years (±2.54). The study revealed that 258 (60.3%), with a median (IQR) = 0.2% (0.1%-0.5%), of the resident physicians are at high risk of having a heart attack or stroke within 10 years. Migraine symptoms (n=65, 15.2%) and angina or heart attack in a first-degree relative (n=26, 6.1%) were the most reported risk factors. The risk was variable among the six university hospitals, with a significant P-value <0.001, where Menoufia University hospitals ranked first, followed by Zagazig University hospitals. However, the percentage of each specialty differs from others. The highest risk was among anesthesiology and ICU residents (n=18, 78.3%), followed by surgery residents (n=44, 62.9%). CONCLUSION: About 258 (60.3%) of the resident physicians are at risk of having a heart attack or stroke within 10 years. There is an urgent need to increase resident physicians' awareness about their heart attack and stroke risks and for health policymakers to ensure a better lifestyle and friendly training environment for resident physicians in Egypt.

19.
Saudi Med J ; 44(8): 808-814, 2023 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-37582569

RESUMO

OBJECTIVES: To explore the epidemiology and patterns of pediatric trauma in addition to length of hospital stay and outcome. METHODS: A single-center retrospective study of 605 patients aged 14 years and younger was carried out from January to December 2022. The study included all patients who experienced intentional or unintentional trauma aged 14 years or below in 2022 and excluded trauma that did not prompt an emergency room visit. RESULTS: Most pediatric trauma cases involved boys (69.1%, n=418), and girls comprised only 30.9% (n=187). Trauma was most common in children one to 5 years old (41.5%, n=251). Falling from a height was the most common mode of injury in both girls and boys (n=253, 41.8%). The most common body parts involved were the extremities (n=357, 59%), followed by the head (n=210, 34.7%). Most children were transferred to hospital via emergency medical services (n=234, 38.7%). In most cases, the child was admitted to the surgical ward (n=458, 75.7%), while others were managed in the emergency department without admission (n=93, 15.4%). Most patients were stable after receiving standard care (n=558, 92.2%). CONCLUSION: To reduce health care expenses and improve public health outcomes, prioritizing preventive measures is crucial. This includes increasing public awareness, implementing safety protocols, and enacting government regulations to prevent avoidable injuries.


Assuntos
Hospitalização , Masculino , Feminino , Criança , Humanos , Lactente , Pré-Escolar , Estudos Retrospectivos , Arábia Saudita/epidemiologia , Escala de Gravidade do Ferimento , Estudos de Coortes
20.
Cureus ; 15(5): e38789, 2023 May.
Artigo em Inglês | MEDLINE | ID: mdl-37303435

RESUMO

Jefferson fracture is a C1 fracture, which happens when an axial load is from the occiput downward to the C1 ring. Usually, it causes outward displacement of the C1 arch, which can injure the vertebral artery. We present a Jefferson fracture with vertebral artery injury, resulting in an asymptomatic ischemic stroke of the left cerebellum. Usually, vertebral artery injuries are asymptomatic since the contralateral vertebral artery and the collateral arteries will adequately supply the cerebellum. Vertebral artery injury (VAI) is typically treated with conservative management with anticoagulants and antiplatelet therapy.

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