Articles

Severe fever with thrombocytopenia syndrome (SFTS) is caused by a virus that induces acute infections. Despite its expansion beyond China, where it first appeared in 2009, no specific drug exists to treat the disease. The discovery that antibodies targeting the SFTS virus surface glycoprotein (Glycoprotein N, GN) significantly enhance patient survival has driven the development of antibodies, particularly nanobodies. Nanobodies targeting the GN protein are a promising therapeutic approach. This paper presents a systematic study of the purification process for a recombinant nanobody-Fc fusion designed to treat the SFTS virus HB29. The study evaluated a sequential purification approach using affinity (AFF), ion exchange (IEC), and hydrophobic interaction chromatography (HIC) techniques to gradually remove impurities. The results demonstrate that this approach achieves an overall yield of more than 50% and a total purity of 95%. Efficient nanobody purification methods, as outlined here, can pave the way for novel treatments to manage this disease.

Introduction: Membranoproliferative glomerulonephritis (MPGN) is a significant cause of glomerulopathy and chronic kidney disease (CKD) or end-stage renal disease (ESRD) in children. The deposition of circulating immune complexes in the glomerulus and abnormal activation of the alternative complement pathway is believed to trigger the disease. However, there is limited knowledge regarding the optimal treatment and prognosis for children with immune complex-associated MPGN (IC-MPGN) and C3 glomerulopathy (C3G).Case report: We report the case of a 14-year-old child admitted for rapidly progressive glomerulonephritis with anuria managed on haemodialysis. The kidney biopsy showed an appearance compatible with MPGN on light microscopy, with immunoglobulin and complement C3 deposits on direct immunofluorescence. The prognosis was poor, with rapid progression to ESRD despite treatment combining corticosteroid therapy and immunosuppressants.Discussion and conclusion: Evaluating the effectiveness of different therapeutic approaches for MPGN in children is challenging due to the small sample sizes and the short duration of the published controlled studies. As a result, it is crucial to conduct more comprehensive trials that focus on both prognosis and treatment options.

The results of the study of the texture of thin films of aluminum nitride obtained by magnetron sputtering are presented. The dependence of the sizes and degree of preferential orientation of crystallites on the conditions of formation of thin films (pressure, discharge power, composition of the plasma-forming gas) is investigated.

This review underscores the transformative impact of Computer-Aided Engineering (CAE) on modern engineering, emphasizing its role in advancing sustainable and efficient technological solutions. The CAE industry is further analyzed, focusing on market trends and future directions. The CAE market is projected to grow significantly in the next five years in industries like automotive, aerospace, and energy, especially with the rapid advancements in High-Performance Computing (HPC), Artificial Intelligence (AI), Internet of Things (IoT), and Digital Twin technologies that enhance real-time optimization and predictive capabilities, thus fostering innovation in sustainable product design and performance. Lastly, this review presents KYAMOS Software and its state-of-the-art CAE solutions for tackling high-demand engineering problems, mainly concerning green technologies.

Introduction: Behçet’s disease is a rare, systemic, inflammatory condition that primarily affects young adults. It is characterized by a variety of clinical manifestations. However, neurological and cardiac presentations remain uncommon and often delayed in diagnosis. This disease can lead to severe complications, such as ischemic strokes and myocarditis, highlighting the systemic and complex nature of the condition.Case presentation: A 27-year-old patient was hospitalized after experiencing an ischemic stroke and myocarditis, which revealed Behçet’s disease. He had a history of oral and cutaneous ulcers, without a prior diagnosis of Behçet. Upon admission, brain imaging confirmed an ischemic stroke, and echocardiography and cardiac MRI showed acute myocarditis. Biological tests confirmed elevated systemic inflammation, which guided the treatment plan. The initial treatment included corticosteroids, immunosuppressors (azathioprine), and cardioprotective therapy. The patient showed significant clinical improvements, although mild deficits persist.Discussion: Myocarditis in Behçet’s disease is a rare but severe manifestation resulting from inflammation of the heart walls, often associated with other systemic vascular involvement. Although less common than oral or cutaneous ulcers, myocarditis can lead to acute heart dysfunction and even heart failure if not treated promptly. It is generally caused by an excessive inflammatory response, often associated with immune system activation, which affects the coronary circulation and damages the cardiac muscle. Treatment for myocarditis in this context relies on high-dose corticosteroids to control inflammation, followed by long-term immunosuppressive medications like azathioprine. While the initial treatment often leads to a rapid improvement in cardiac function, the risk of long-term complications, such as dilated cardiomyopathy or heart failure, remains high. Close follow-up is therefore essential to prevent these complications and optimize the long-term cardiac prognosis of patients with this rare disease.Conclusion: The progression of myocarditis in Behçet’s disease can be favorable if diagnosed and treated early, with significant improvement in cardiac function achieved through the use of corticosteroids and immunosuppressive therapy. However, the long-term prognosis remains uncertain due to the risk of chronic cardiac complications, such as dilated cardiomyopathy or heart failure.

Retracing the evolution of Mineralocorticoid Receptors (MR) obliges us to take an instructive as well as fascinating leap back in time. This journey teaches us that the relationship between MRs and what we consider their natural ligand, aldosterone, has not always been an exclusive one. MRs operated for a very long time in the oceans and, in any case, in an aquatic environment, stimulated by ligands other than aldosterone, and exercising functions that we still do not know well but which were certainly different from those they currently perform in terrestrial vertebrates, where they maintain normal sodium and body fluids. The history of MRs was initially intertwined with that of female sexual hormones, in particular with progesterone, which was one of the first agonists for MRs, before becoming, with the transition to the terrestrial environment, an important antagonist. This initial intertwining could be the cause of the sexual dimorphism that can be glimpsed when these receptors are overstimulated, as emerges from many experimental studies and some clinical data and/or when antagonistic drugs for these receptors are studied. This must be taken into account in the planning of clinical studies, especially randomized controlled trials, in which the presence of the two sexes must always be well balanced and in the interpretation of the results which must always be performed being well aware of the gender of participants. This does not always happen, however.

Anaplastic Pleomorphic Xanthoastrocytoma is a very rare tumor of the Central Nervous System (CNS). BRAFV600E mutation is a common mutation in pleomorphic xanthoastrocytoma. We present a 52-year-old male patient who underwent total resection due to a temporal lobe mass. The primary tumor in the temporal lobe was given postoperative radiotherapy. During follow-up, genetically and histologically proven metastasis was detected in the paraspinal region. The adjuvant RT was given to metastasis after surgery. The patient, who used the combination of dabrafenib and trametinib after recurrence, is being monitored in remission.

Alginate, a naturally occurring biopolymer extracted from brown algae, presents a promising avenue for developing sustainable and efficient membranes for wastewater treatment. This review comprehensively examines recent advancements in the fabrication, modification, and application of alginate-based membranes for effective water purification. The paper delves into various fabrication techniques, including casting, electrospinning, and 3D printing, which influence the structural and functional properties of the resulting alginate membranes. To enhance performance, strategies such as crosslinking, incorporation of porogens, and surface functionalization are employed. These modifications optimize crucial properties like mechanical strength, porosity, selectivity, and antifouling resistance. Furthermore, Response Surface Methodology (RSM) has emerged as a valuable tool for systematically optimizing fabrication parameters, enabling researchers to identify optimal conditions for achieving desired membrane characteristics. The integration of alginate membranes with biological treatment processes, such as phycoremediation (utilizing microalgae) and mycoremediation (employing fungi), offers a synergistic approach to enhance wastewater treatment efficiency. By immobilizing these microorganisms within the alginate matrix, their bioremediation capabilities are amplified, leading to improved pollutant degradation and nutrient removal. In conclusion, alginate-based membranes demonstrate significant potential as a sustainable and effective technology for wastewater treatment. Continued research and development, focusing on optimizing fabrication processes and exploring innovative integration strategies with biological systems, will further advance the application of alginate membranes in addressing the pressing global challenge of water pollution.

Kalanchoe pinnata is a widely recognized medicinal plant known for its antioxidant and anti-inflammatory properties. This study explores its in vitro antioxidant and anti-inflammatory activities, highlighting its potential for pharmaceutical and biomedical applications. The research innovatively assesses its bioactive components using DPPH radical scavenging, nitric oxide inhibition assays, and phenolic content analysis. Results demonstrated significant antioxidant activity with IC50 values comparable to ascorbic acid, along with notable anti-inflammatory effects via nitric oxide inhibition. These findings emphasize Kalanchoe pinnata’s potential as a source for developing antioxidant and anti-inflammatory therapeutics. Further investigation into bioactive compound isolation and mechanistic pathways is recommended to clarify its pharmacological efficacy.

Objective: To investigate the clinical significance of preoperative lower extremity venography in patients with varicose veins.Methods: From February 2019 to July 2023, 498 patients (583 diseased lower limbs) with lower limb varicose veins as the first symptom were selected and admitted to the Seventh People’s Hospital of Chongqing. Paracentesis of the deep veins of the lower extremities was performed in all affected limbs to observe the morphology of the deep veins from the ankle to the pelvis, the patency of the deep veins, and the reflux of contrast medium when the patients performed the Valsalva manoeuvre. The aetiology of varicose veins was analysed according to the imaging manifestations and individualised treatment plans were formulated according to the different aetiologies.Results: The imaging success rate of 583 diseased lower limbs was 100%, of which 285 (48.9%) were primary lower limb deep vein valve insufficiency, 186 (32%) were simple superficial varicose veins, 63 (10. 8%) were iliac vein compression syndromes, 41 (5%) were post-thrombotic syndromes of the deep veins of the lower limbs and the others (primary deep vein avascularity of the lower limbs, bifemoral venous malformations, congenital varicose vein osteohypertrophy syndrome, tumour compression, etc.) 8 articles (1.37%).Conclusion: The advantages of lower extremity deep vein bypass angiography are simple operation, low trauma, and high specificity, which can help to diagnose the aetiology of lower extremity varicose veins and guide the clinical treatment.