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1.
Front Chem ; 12: 1425485, 2024.
Article in English | MEDLINE | ID: mdl-39050372

ABSTRACT

This research work aimed to identify the main components that are responsible for the sedative properties of hop cones and allocate their targets. This investigation was performed through molecular docking, molecular dynamic simulations, root mean square fluctuation (RMSF) analysis, and DFT calculation techniques. The tested compounds from Humulus lupulus were compared to diazepam and paroxetine. Molecular docking showed that two-thirds of the compounds had a good affinity to gamma-aminobutyric acid (GABA), outperforming diazepam, while only three surpassed paroxetine on the SERT. Compounds 3,5-dihydroxy-4,6,6-tris(3-methylbut-2-en-1-yl)-2-(3-methylbutanoyl)cyclohexa-2,4-dien-1-one (5) and (S,E)-8-(3,7-dimethylocta-2,6-dien-1-yl)-5,7-dihydroxy-2-(4-hydroxyphenyl)chromen-4-one (15) showed stable binding and favorable energy parameters, indicating their potential for targeting GABA receptors and the SERT. This study provides a basis for future clinical research on these promising compounds.

2.
Luminescence ; 39(7): e4824, 2024 Jul.
Article in English | MEDLINE | ID: mdl-39004773

ABSTRACT

Dabigatran (DBG), marketed as Pradaxa, is an anticoagulant medication prescribed for the treatment and mitigation of blood clots and to lower the risk of stroke in individuals with the heart condition known as atrial fibrillation. This medication is specifically indicated for preventing blood clots post hip or knee replacement surgeries and in patients with a prior history of clots. Compared to warfarin, dabigatran serves as a viable alternative that does not necessitate routine blood monitoring tests. The complimentary benefits associated with SALL (salting-out assisted liquid-liquid extraction) and the fluorogenic capabilities of benzofurazan. These methods were combined to provide an affordable and sensitive DBG assaying method. The spectral strength of the yellow luminous product was examined at 533.8 nm and by adjustment of a wavelength of 474.7 nm for excitation. To assess its linearity, the calibration chart was tested across a DBG concentration range of 30-500 ng/ml. Via accurate computation based on ICH, the detection limit (LD) was determined to be 9.5 ng/ml, and the strategy can quantify the DBG to a limit of 28 ng/ml. To ensure success, various crucial parameters for method implementation have been extensively studied and adapted. The validation of the strategy adhered to the policies outlined by ICH, affirming its precision in quantifying DBG in capsules. Furthermore, the inclusion of SALLE steps facilitated accurate monitoring of DBG in plasma samples, introducing a unique and advanced methodology for analyzing this compound in biological samples.


Subject(s)
Anticoagulants , Capsules , Dabigatran , Dabigatran/blood , Dabigatran/chemistry , Dabigatran/pharmacology , Humans , Anticoagulants/chemistry , Anticoagulants/blood , Anticoagulants/pharmacology , Fluorescent Dyes/chemistry , Liquid-Liquid Extraction , Spectrometry, Fluorescence , Limit of Detection , 4-Chloro-7-nitrobenzofurazan
3.
Int J Mol Sci ; 25(13)2024 Jul 07.
Article in English | MEDLINE | ID: mdl-39000565

ABSTRACT

The incidence and mortality of cancer are increasing, making it a leading cause of death worldwide. Conventional treatments such as surgery, radiotherapy, and chemotherapy face significant limitations due to therapeutic resistance. Autophagy, a cellular self-degradation mechanism, plays a crucial role in cancer development, drug resistance, and treatment. This review investigates the potential of autophagy inhibition as a therapeutic strategy for cancer. A systematic search was conducted on Embase, PubMed, and Google Scholar databases from 1967 to 2024 to identify studies on autophagy inhibitors and their mechanisms in cancer therapy. The review includes original articles utilizing in vitro and in vivo experimental methods, literature reviews, and clinical trials. Key terms used were "Autophagy", "Inhibitors", "Molecular mechanism", "Cancer therapy", and "Clinical trials". Autophagy inhibitors such as chloroquine (CQ) and hydroxychloroquine (HCQ) have shown promise in preclinical studies by inhibiting lysosomal acidification and preventing autophagosome degradation. Other inhibitors like wortmannin and SAR405 target specific components of the autophagy pathway. Combining these inhibitors with chemotherapy has demonstrated enhanced efficacy, making cancer cells more susceptible to cytotoxic agents. Clinical trials involving CQ and HCQ have shown encouraging results, although further investigation is needed to optimize their use in cancer therapy. Autophagy exhibits a dual role in cancer, functioning as both a survival mechanism and a cell death pathway. Targeting autophagy presents a viable strategy for cancer therapy, particularly when integrated with existing treatments. However, the complexity of autophagy regulation and the potential side effects necessitate further research to develop precise and context-specific therapeutic approaches.


Subject(s)
Antineoplastic Agents , Autophagy , Neoplasms , Humans , Autophagy/drug effects , Neoplasms/drug therapy , Neoplasms/pathology , Neoplasms/metabolism , Animals , Antineoplastic Agents/pharmacology , Antineoplastic Agents/therapeutic use , Chloroquine/pharmacology , Chloroquine/therapeutic use , Hydroxychloroquine/therapeutic use , Hydroxychloroquine/pharmacology
4.
BMC Med Educ ; 24(1): 754, 2024 Jul 12.
Article in English | MEDLINE | ID: mdl-38997722

ABSTRACT

INTRODUCTION: Achieving integration in medical curricula without redundancy in basic medical sciences disciplines is a substantial challenge. Introducing co-teaching in such curricula with active inter-disciplinary participation is believed to best utilize the teaching and learning time for instructors and students, to motivate the students, and to provide a more robust base for bridging the gap between basic and clinical medical sciences in medical schools. Additionally, including more than one student-centered activity in one session is expected to increase the students' involvement and improve the retention of knowledge. Our study aims at minimizing redundancy and improving the students' motivation in learning the topic "insulin-glucose regulation" during the Endocrine and Metabolism module taught to year three students at Galala University, Faculty of Medicine in Egypt. METHODS: The authors designed a 3-hr co-teaching integrated session with 3 basic medical sciences aimed to explain the clinical terms including online accessed pre/post-tests, small student groups-created pre/post-session MCQ, with co-sharing of students in the introduction of scientific materials. RESULTS: The students' scores in the post-test showed that they gained more knowledge compared to before. Interestingly, there was only an improvement in the students' performance in generating questions before and after the session, as well as in the integrated question in the end-of-semester exam, we suggest implementing this approach in other topics and modules in medical schools. It would also be favorable to follow up with the students taught using this approach and those taught differently to assess the effectiveness of this approach in a controlled manner. CONCLUSION: Integrated sessions effectively increase student awareness of medical concepts and reduce redundancy in basic medical sciences. This approach exposes students to a more comprehensive understanding of the subject matter, improving their comprehension and retention. It is a valuable method for educators and instructors seeking to enhance their students' learning experience in the field of medical sciences.


Subject(s)
Curriculum , Education, Medical, Undergraduate , Students, Medical , Humans , Egypt , Students, Medical/psychology , Educational Measurement , Teaching , Schools, Medical
5.
Alcohol ; 2024 Jul 13.
Article in English | MEDLINE | ID: mdl-39009173

ABSTRACT

Yearly adult per capita consumption of alcohol in China between 2016 and 2019 decreased by 2.4 litres of pure alcohol, or 33%. According to the World Health Organization, this decrease in consumption was accompanied by reductions in alcohol-attributable mortality of 23% between 2015 and 2019. This paper examines the contribution of alcohol control policies in China to these public health gains. A systematic search of the literature was conducted on alcohol control policies and their effectiveness in China as part of a larger search of all countries in WHO Western Pacific Region. In addition to articles on empirical evidence on the impact of such alcohol control policies, we also searched for reviews. The plausibility of changes of traditional alcohol control policies (taxation increases, availability restrictions, restriction on advertisement and marketing, drink-driving laws, screening and brief interventions) in explaining reductions of consumption levels and attributable mortality rates was explored. There was some progress in the successful implementation of strict drink-driving policies, which could explain reductions in traffic injuries, including fatalities. Other traditional alcohol control policies seem to have played a minimal role in reducing alcohol consumption and attributable harms during the time period 2016-2019. However, an anti-corruption campaign was extensive enough to have substantially contributed to these reductions. The campaign prohibited the consumption of alcoholic beverages in everyday life of government officials and thus contributed to a de-normalization of alcohol. While this anti-corruption campaign was the only policy to potentially explain marked decreases in levels of alcohol consumption and attributable mortality, more detailed research is required to determine exactly how the campaign achieved these decreases.

6.
Transplant Direct ; 10(8): e1665, 2024 Aug.
Article in English | MEDLINE | ID: mdl-38988689

ABSTRACT

Background: The clinical success of liver transplantation has led to increased demand, requiring further expansion of the donor pool. Therapeutic interventions to optimize organs from donation after circulatory death (DCD) have significant potential to mitigate the organ shortage. Dysfunction in DCD liver grafts is mediated by microvascular thrombosis during the warm ischemic period, and strategies that reduce this thrombotic burden may improve graft function. We hypothesized that the administration of the fibrinolytic enzyme plasmin to the donor organ during the cold storage period would reduce the thrombotic burden and improve DCD liver graft function. Methods: In 2 separate cohorts, 32 syngeneic orthotopic rat liver transplants were performed in Lewis rats. Livers were procured from donors with 45 min of warm ischemic injury. Liver grafts were flushed with histidine-tryptophan-ketoglutarate preservation solution mixed with either plasmin (experimental group) or albumin (control group). All investigators were blinded to treatment group. After preparing the liver for implant using a modified cuff technique, the liver was stored for 1 h by static cold storage at 4 °C. Immediately before implantation, the liver graft was flushed, and this effluent was analyzed for fibrin degradation products to determine graft clot burden. Twenty-four hours following transplantation, animals were euthanized, and samples were collected. Results: Recipient survival was significantly higher for DCD liver grafts treated with plasmin compared with control. Moreover, histology of liver graft tissue immediately before implant reflected significantly reduced congestion in plasmin-treated livers (score, mean ± SD: 0.73 ±â€…0.59 versus 1.12 ±â€…0.48; P = 0.0456). The concentration of fibrin degradation products in the final flush before implantation was significantly reduced in plasmin-treated livers (743 ±â€…136 versus 10 919 ±â€…4642 pg/mL; P = 0.0001), reflecting decreased clot burden in the graft. Conclusions: The present study demonstrates that plasmin improves survival and may reduce thrombotic burden in DCD liver grafts with prolonged warm ischemic injury, meriting further study.

7.
Egypt Heart J ; 76(1): 89, 2024 Jul 08.
Article in English | MEDLINE | ID: mdl-38976090

ABSTRACT

BACKGROUND: Persistent Atrial Fibrillation (PeAF) is a challenging case for rhythm control modalities. Catheter ablation is the mainstay in PeAF management; however, data regarding the comparative safety and efficacy of cryoballoon ablation (CBA) versus radiofrequency ablation (RFA) for PeAF is still limited. We aim to compare the safety and efficacy of CBA versus RFA for PeAF ablation. METHODS: We conducted a systematic review and meta-analysis synthesizing randomized controlled trials (RCTs), which were retrieved by systematically searching PubMed, EMBASE, Web of Science, SCOPUS, and Cochrane through October 2023. RevMan version 5.4 software was used to pool dichotomous data using risk ratio (RR) and continuous data using mean difference (MD) with a 95% confidence interval (CI). PROSPERO ID: CRD42023480314. RESULTS: Three RCTs with 400 patients were included. There was no significant difference between RFA and CBA regarding AF recurrence (RR: 0.77, 95% CI [0.50, 1.20], P = 0.25), atrial tachycardia or atrial flutter recurrence (RR: 0.54, 95% CI [0.11, 2.76], P = 0.46), and any arrhythmia recurrence (RR: 0.96, 95% CI [0.70, 1.31], P = 0.80). CBA was significantly associated with decreased total procedure duration (MD: - 45.34, 95% CI [- 62.68, - 28.00], P < 0.00001), with no significant difference in fluoroscopy duration (MD: 3.59, 95% CI [- 5.13, 12.31], P = 0.42). Safety parameters were similar in both groups, including the incidence of any complications, phrenic nerve palsy (RR: 2.91 with 95% CI [0.31, 27.54], P = 0.35), access site complications (RR: 0.33 with 95% CI [0.05, 2.03], P = 0.23), and pericardial effusion. CONCLUSIONS: In PeAF catheter ablation, CBA is comparable to RFA in terms of safety and efficacy. Also, CBA is associated with a shorter total procedure duration.

8.
Sci Rep ; 14(1): 15415, 2024 07 04.
Article in English | MEDLINE | ID: mdl-38965307

ABSTRACT

Sarcasm is a perplexing form of human expression that presents distinct challenges in understanding. The problem of sarcasm detection has centered around analyzing individual utterances in isolation which may not provide a comprehensive understanding of the speaker's sarcastic intent. Our work addresses this problem by exploring and understanding the specific contextual cues that contribute to sarcasm. In this paper, we propose an enhanced approach for sarcasm detection using contextual features. Our methodology involves employing pre-trained transformer models, RoBERTa and DistilBERT, and fine-tuning them on two datasets: the News Headlines and the Mustard datasets. Incorporating contextual information, the proposed approach yielded the best performance, achieving an impressive F1 score of 99% on News Headlines dataset and 90% on Mustard dataset. Moreover, we experimented summarizing the context into a concise short sentence. This enhancement reduced training time by 35.5% of the original time. We further validated the model trained on the News headlines dataset against the Reddit dataset, which resulted in 49% F1 score without context data. However, with the inclusion of context data, the F1 score surged to 75%. Proposed approach enhances the understanding of sarcasm in different contextual settings, enabling more accurate sentiment analysis and better decision-making in various applications.


Subject(s)
Algorithms , Wit and Humor as Topic , Humans
9.
J Visc Surg ; 2024 Jul 03.
Article in English | MEDLINE | ID: mdl-38964939

ABSTRACT

BACKGROUND: With steep posterior anorectal angulation, transanal total mesorectal excision (taTME) may have a risk of dissection in the wrong plane or starting higher up, resulting in leaving distal mesorectum behind. Although the distal mesorectal margin can be assessed by preoperative MRI, it needs skilled radiologist and high-definition image for accurate evaluation. This study developed a deep neural network (DNN) to predict the optimal level of distal mesorectal margin. METHODS: A total of 182 pelvic MRI images extracted from the cancer image archive (TCIA) database were included. A DNN was developed using gender, the degree of anterior and posterior anorectal angles as input variables while the difference between anterior and posterior mesorectal distances from anal verge was selected as a target. The predictability power was assessed by regression values (R) which is the correlation between the predicted outputs and actual targets. RESULTS: The anterior angle was an obtuse angle while the posterior angle varied from acute to obtuse with mean angle difference 35.5°±14.6. The mean difference between the anterior and posterior mesorectal end distances was 18.6±6.6mm. The developed DNN had a very close correlation with the target during training, validation, and testing (R=0.99, 0.81, and 0.89, P<0.001). The predicted level of distal mesorectal margin was closely correlated with the actual optimal level (R=0.91, P<0.001). CONCLUSIONS: Artificial intelligence can assist in either making or confirming the preoperative decisions. Furthermore, the developed model can alert the surgeons for this potential risk and the necessity of re-positioning the proctectomy incision.

11.
Bioorg Med Chem ; 110: 117826, 2024 Aug 01.
Article in English | MEDLINE | ID: mdl-39004050

ABSTRACT

Design, synthesis, and biological evaluation of two series of O4'-benzyl-hispidol derivatives and the analogous corresponding O3'-benzyl derivatives aiming to develop selective monoamine oxidase-B inhibitors endowed with anti-neuroinflammatory activity is reported herein. The first O4'-benzyl-hispidol derivatives series afforded several more potentially active and MAO-B inhibitors than the O3'-benzyl derivatives series. The most potential compound 2e of O4'-benzyl derivatives elicited sub-micromolar MAO-B IC50 of 0.38 µM with a selectivity index >264 whereas most potential compound 3b of O3'-benzyl derivatives showed only 0.95 MAO-B IC50 and a selectivity index >105. Advancement of the most active compounds showing sub-micromolar activities to further cellular evaluations of viability and induced production of pro-neuroinflammatory mediators confirmed compound 2e as a potential lead compound inhibiting the production of the neuroinflammatory mediator nitric oxide significantly by microglial BV2 cells at 3 µM concentration without significant cytotoxicity up to 30 µM. In silico molecular docking study predicted plausible binding modes with MAO enzymes and provided insights at the molecular level. Overall, this report presents compound 2e as a potential lead compound to develop potential multifunctional compounds.


Subject(s)
Molecular Docking Simulation , Monoamine Oxidase Inhibitors , Monoamine Oxidase , Monoamine Oxidase Inhibitors/pharmacology , Monoamine Oxidase Inhibitors/chemical synthesis , Monoamine Oxidase Inhibitors/chemistry , Monoamine Oxidase/metabolism , Structure-Activity Relationship , Animals , Mice , Humans , Molecular Structure , Cell Line , Dose-Response Relationship, Drug , Nitric Oxide/antagonists & inhibitors , Nitric Oxide/biosynthesis , Nitric Oxide/metabolism , Cell Survival/drug effects , Microglia/drug effects , Microglia/metabolism , Anti-Inflammatory Agents/pharmacology , Anti-Inflammatory Agents/chemical synthesis , Anti-Inflammatory Agents/chemistry , Anti-Inflammatory Agents, Non-Steroidal/pharmacology , Anti-Inflammatory Agents, Non-Steroidal/chemical synthesis , Anti-Inflammatory Agents, Non-Steroidal/chemistry
12.
Egypt J Immunol ; 31(3): 15-27, 2024 Jul.
Article in English | MEDLINE | ID: mdl-38985531

ABSTRACT

The interleukin 13 (IL-13) gene single nucleotide polymorphisms (SNPs) are frequently linked to increased vulnerability to allergic asthma. Forkhead box protein P3 (FOXP3) is an important molecule in the formation of regulatory T cells (Treg). The genetic variants that alter FOXP3 function may have a role in the development of asthma and other allergic disorders. We aimed to determine the association of IL-13 rs20541, FOXP3 rs3761548 genes SNPs and serum levels of IL-13 with allergic asthma patients. In this case-control study, 41 Egyptian patients with allergic asthma were included. Age and gender matched. 41 normal volunteers were considered the controls. All subjects were examined for IL-13 rs20541 and FOXP3 rs3761548 SNPs by the polymerase chain reaction /restriction fragment length polymorphism technique. The serum level of IL-13 was assessed by the enzyme linked immunosorbent assay (ELISA). AA genotype at IL-13 rs20541 SNP was statistically significantly different between the studied groups (p= 0.042). Also, a statistically significant difference was detected when compared AA genotype to GG genotype as AA genotype was three times at risk for asthma (p1=0.031) (OR=3.95) and A allele increased the risk of asthma by about 3 times (OR=3.2). AA genotype at FOXP3 rs3761548 SNP was statistically significantly different between the studied groups (p=0.013). Also, a statistically significant difference was detected when compared AA genotype to CC genotype as AA genotype was 7 times at risk for asthma (p1=0.003) (OR=7.04) and A allele increased the risk of asthma by about 3 times (p<0.001) (OR=3.07). The serum level of IL-13 was statistically significant different between both groups (p<0.001). We can conclude that IL-13 could be a useful tool for predicting allergic asthma. Patients with AA genotype of IL-13 rs20541 and AA genotype of FOXP3 rs3761548 have a higher risk for developing allergic asthma.


Subject(s)
Asthma , Forkhead Transcription Factors , Genetic Predisposition to Disease , Genotype , Interleukin-13 , Polymorphism, Single Nucleotide , Humans , Interleukin-13/genetics , Interleukin-13/blood , Asthma/genetics , Asthma/blood , Forkhead Transcription Factors/genetics , Male , Female , Egypt , Case-Control Studies , Genetic Predisposition to Disease/genetics , Adult , Alleles , Adolescent , Gene Frequency , Young Adult
13.
BMC Plant Biol ; 24(1): 632, 2024 Jul 06.
Article in English | MEDLINE | ID: mdl-38970019

ABSTRACT

BACKGROUND: The myeloblastosis (MYB) transcription factor (TF) family is one of the largest and most important TF families in plants, playing an important role in a life cycle and abiotic stress. RESULTS: In this study, 268 Avena sativa MYB (AsMYB) TFs from Avena sativa were identified and named according to their order of location on the chromosomes, respectively. Phylogenetic analysis of the AsMYB and Arabidopsis MYB proteins were performed to determine their homology, the AsMYB1R proteins were classified into 5 subgroups, and the AsMYB2R proteins were classified into 34 subgroups. The conserved domains and gene structure were highly conserved among the subgroups. Eight differentially expressed AsMYB genes were screened in the transcriptome of transcriptional data and validated through RT-qPCR. Three genes in AsMYB2R subgroup, which are related to the shortened growth period, stomatal closure, and nutrient and water transport by PEG-induced drought stress, were investigated in more details. The AsMYB1R subgroup genes LHY and REV 1, together with GST, regulate ROS homeostasis to ensure ROS signal transduction and scavenge excess ROS to avoid oxidative damage. CONCLUSION: The results of this study confirmed that the AsMYB TFs family is involved in the homeostatic regulation of ROS under drought stress. This lays the foundation for further investigating the involvement of the AsMYB TFs family in regulating A. sativa drought response mechanisms.


Subject(s)
Avena , Droughts , Homeostasis , Phylogeny , Plant Proteins , Reactive Oxygen Species , Transcription Factors , Transcription Factors/genetics , Transcription Factors/metabolism , Plant Proteins/genetics , Plant Proteins/metabolism , Reactive Oxygen Species/metabolism , Avena/genetics , Avena/metabolism , Gene Expression Regulation, Plant , Polyethylene Glycols/pharmacology , Multigene Family , Stress, Physiological/genetics , Genome-Wide Association Study , Genome, Plant
14.
J Family Med Prim Care ; 13(5): 1620-1627, 2024 May.
Article in English | MEDLINE | ID: mdl-38948636

ABSTRACT

Diabetic ketoacidosis (DKA) is a life-threatening condition affecting individuals with diabetes characterised by hyperglycaemia, metabolic acidosis and ketonemia. The incidence and financial burden of DKA is still high. Thiamine deficiency is well documented in patients with DKA and could be associated with cardiac dysfunction in those patients. Thiamine deficiency leads to cardiac dysfunction, neuronal death and worsens the prognosis of DKA. There is an existing metabolic relationship between thiamine deficiency in diabetes, obesity and bariatric surgery. Careful monitoring of thiamine, along with other vitamins, is essential for diabetic patients, obese individuals and postbariatric surgery. Further research and clinical studies are urgently needed to assess the following: (1) Whether diabetes, obesity and bariatric surgery make individuals more prone to have DKA related to thiamine deficiency and (2) Whether supplementation of thiamine can protect diabetic patients, obese subjects and individuals undergoing bariatric surgery from DKA. This review summarises the biochemistry of thiamine and the existing metabolic relationships between thiamine deficiency in DKA, diabetes, obesity and bariatric surgery. Primary and family physicians have an important role in ensuring adequate replacement of thiamine in individuals with diabetes, obesity and bariatric surgery.

15.
Sci Adv ; 10(31): eadp1290, 2024 Aug 02.
Article in English | MEDLINE | ID: mdl-39083604

ABSTRACT

COVID-19 vaccines have successfully reduced severe disease and death after severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. Nonetheless, COVID-19 vaccines are variably effective in preventing transmission and symptomatic SARS-CoV-2 infection. Here, we evaluated the impact of mucosal or intramuscular vaccine immunization on airborne infection and transmission of SARS-CoV-2 in Syrian hamsters. Immunization of the primary contact hamsters with a mucosal chimpanzee adenoviral-vectored vaccine (ChAd-CoV-2-S), but not intramuscular messenger RNA (mRNA) vaccine, reduced infectious virus titers ~100-fold and 100,000-fold in the upper and lower respiratory tract of the primary contact hamster following SARS-CoV-2 exposure. This reduction in virus titer in the mucosal immunized contact animals was sufficient to eliminate subsequent transmission to vaccinated and unvaccinated hamsters. In contrast, sequential transmission occurred after systemic immunization with the mRNA vaccine. Thus, immunization with a mucosal COVID-19 vaccine protects against cycles of respiratory transmission of SARS-CoV-2 and can potentially limit the community spread of the virus.


Subject(s)
COVID-19 Vaccines , COVID-19 , Mesocricetus , SARS-CoV-2 , Animals , COVID-19/prevention & control , COVID-19/transmission , COVID-19/virology , COVID-19/immunology , SARS-CoV-2/immunology , COVID-19 Vaccines/immunology , COVID-19 Vaccines/administration & dosage , Cricetinae , Immunization , Vaccination , Humans , Spike Glycoprotein, Coronavirus/immunology , Spike Glycoprotein, Coronavirus/genetics , Antibodies, Neutralizing/immunology , Antibodies, Viral/immunology , Antibodies, Viral/blood
16.
Cureus ; 16(6): e62806, 2024 Jun.
Article in English | MEDLINE | ID: mdl-39044882

ABSTRACT

A description of an acute hospital presentation with severe tachyarrhythmia requiring multiple direct current cardioversions in a 45-year-old male bodybuilder with underlying cardiomyopathy possibly caused by long-term anabolic steroid abuse and more recent thyroxine misuse is described. A review of the literature regarding the above associations was also done. This case report further adds to the literature regarding the harmful effect of androgenic anabolic steroid misuse (with the added effect of thyroxine misuse in this case) on the heart.

17.
J Exp Bot ; 2024 Jul 20.
Article in English | MEDLINE | ID: mdl-39031128

ABSTRACT

The plant cuticle is a complex extracellular lipid barrier that has multiple protective functions. We investigated cuticle deposition by integrating metabolomics and transcriptomics data gathered from six different maize seedling organs of four genotypes, the inbred lines B73 and Mo17, and their reciprocal hybrids. These datasets captured the developmental transition of the seedling from heterotrophic skotomorphogenic growth to autotrophic photomorphogenic growth, which is a transition that is highly vulnerable to environmental stresses. Statistical interrogation of these data reveals that the predominant determinant of cuticle composition is seedling organ type, whereas the seedling genotype has a smaller effect on this phenotype. Gene-to-metabolite associations assessed by integrated statistical analyses identified three gene networks connected with the deposition of different elements of the cuticle: a) cuticular waxes; b) monomers of lipidized cell wall biopolymers, including cutin and suberin; and c) both of these elements. These gene networks reveal three metabolic programs that appear to support cuticle deposition, including processes of chloroplast biogenesis, lipid metabolism, and molecular regulation (e.g., transcription factors, post-translational regulators and phytohormones). This study demonstrates the wider physiological metabolic context that can determine cuticle deposition and lays the groundwork for new targets for modulating properties of this protective barrier.

18.
Eur J Med Res ; 29(1): 388, 2024 Jul 27.
Article in English | MEDLINE | ID: mdl-39068447

ABSTRACT

BACKGROUND: Newer generation ultrathin strut stents are associated with less incidence of target lesion failure (TLF) in patients undergoing percutaneous coronary intervention (PCI) in the short term. However, its long-term effect on different cardiovascular outcomes remains unknown. OBJECTIVES: We aim to identify the effects of newer-generation ultrathin-strut stents vs. standard thickness second-generation drug-eluting stents (DES) on long-term outcomes of revascularization in coronary artery disease. METHODS: We searched PubMed, Web of Science, Cochrane Library databases, and Scopus for randomized controlled trials (RCTs) and registries that compare newer-generation ultrathin-strut (< 70 mm) with thicker strut (> 70 mm) DES to evaluate cardioprotective effects over a period of up to 5 years. Primary outcome was TLF, a composite of cardiac death, target vessel myocardial infarction (TVMI) or target lesion revascularization (TLR). Secondary outcomes included the components of TLF, stent thrombosis (ST), and all-cause death were pooled as the standardized mean difference between the two groups from baseline to endpoint. RESULTS: We included 19 RCTs and two prospective registries (103,101 patients) in this analysis. The overall effect on the primary outcome was in favor of second-generation ultrathin struts stents in terms of TLF at ≥ 1 year, ≥ 2 years, and ≥ 3 years (P value = 0.01, 95% CI [0.75, 0.96]), P value = 0.003, 95% CI [0.77, 0.95]), P value = 0.007, 95% CI [0.76, 0.96]), respectively. However, there was no reported benefit in terms of TLF when we compared the two groups at ≥ 5 years (P value = 0.21), 95% CI [0.85, 1.04]). Some of the reported components of the primary and secondary outcomes, such as TLR, target vessel revascularization (TVR), and TVMI, showed the same pattern as the TLF outcome. CONCLUSION: Ultrathin-strut DES showed a beneficial effect over thicker strut stents for up to 3 years. However, at the 5-year follow-up, the ultrathin strut did not differ in terms of TLF, TLR, TVR, and TVMI compared with standard-thickness DES, with similar risks of patient-oriented composite endpoint (POCE), MI, ST, cardiac death, and all-cause mortality.


Subject(s)
Coronary Artery Disease , Drug-Eluting Stents , Percutaneous Coronary Intervention , Humans , Percutaneous Coronary Intervention/methods , Coronary Artery Disease/surgery , Coronary Artery Disease/therapy , Follow-Up Studies , Treatment Outcome , Randomized Controlled Trials as Topic
19.
SAGE Open Nurs ; 10: 23779608241265203, 2024.
Article in English | MEDLINE | ID: mdl-39070008

ABSTRACT

Introduction: Diabetes mellitus (DM) is one of the world's major public health problems. There are few published data on 25-hydroxyvitamin D (25[OH]D) concentrations and DM, and these studies showed different results. Objectives: The current study aimed to compare 25[OH]D concentrations between patients with type 2 DM (T2DM) and healthy controls in eastern Sudan. Methods: A case-control study of two groups matched for age and gender (88 in each group) was conducted in eastern Sudan from March to May 2022. The cases were patients with T2DM, and the controls were healthy participants. Sociodemographic data were collected, and serum 25(OH)D levels were assessed. A univariate analysis was performed. Results: Of the total 176, 82 (47%) were males, and 94 (53%) were females; the median (interquartile range [IQR]) of age, body mass index (BMI), and 25(OH)D concentration were 55 (50-61) years, 27 (23-31) kg/m2, and 13 (10-19) ng/mL, respectively. Of the 176, 137 (78%) were vitamin D deficiency cases. Compared with the controls, age, gender, educational level, marital status, or BMI were not different in the circumstances. Moreover, the median (IQR) for serum 25(OH)D concentrations showed no difference between patients with T2DM and the healthy controls (12 [10-18] ng/mL vs. 13 [10-20] ng/mL). The prevalence of vitamin D deficiency (25(OH)D level < 20 ng/mL) was not different between patients with T2DM and the healthy controls (66/88 [75%] vs. 71/88 [81%]). There was no association in the serum 25(OH)D levels between diabetic and nondiabetic participants (OR = 1.01, 95% CI 0.97-1.06) or in vitamin D deficiency between diabetic and nondiabetic participants (OR = 0.72, 95% CI 0.35-1.47). Conclusion: There was no significant difference in 25(OH)D levels between diabetic and nondiabetic participants in this study. Further studies investigating the mechanisms of association between 25(OH)D levels and DM are needed.

20.
BMC Chem ; 18(1): 141, 2024 Jul 30.
Article in English | MEDLINE | ID: mdl-39080756

ABSTRACT

The escalating threat posed by the Monkeypox virus (MPXV) to global health necessitates the urgent discovery of effective antiviral agents, as there are currently no specific drugs available for its treatment, and existing inhibitors are hindered by toxicity and poor pharmacokinetic profiles. This study aimed to identify potent MPXV inhibitors by screening a diverse library of small molecule compounds derived from marine fungi, focusing on the viral protein VP39, a key methyltransferase involved in viral replication. An extensive virtual screening process identified four promising compounds-CMNPD15724, CMNPD28811, CMNPD30883, and CMNPD18569-alongside a control molecule. Rigorous evaluations, including re-docking, molecular dynamics (MD) simulations, and hydrogen bond analysis, were conducted to assess their inhibitory potential against MPXV VP39. CMNPD15724 and CMNPD30883, in particular, demonstrated a superior binding affinity and stable interactions within the target protein's active site throughout the MD simulations, suggesting a capacity to overcome the limitations associated with sinefungin. The stability of these VP39-compound complexes, corroborated by MD simulations, provided crucial insights into the dynamic behavior of these interactions. Furthermore, Principal Component Analysis (PCA) based free energy landscape assessments offered a detailed understanding of the dynamic conformational changes and energetic profiles underlying these compounds' functional disruption of VP39. These findings establish CMNPD15724, CMNPD28811, CMNPD30883, and CMNPD18569 as promising MPXV inhibitors and highlight marine fungi as a valuable source of novel antiviral agents. These compounds represent potential candidates for further experimental validation, advancing the development of safer and more effective therapeutic options to combat this emerging viral infection.

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