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This article provides a comprehensive overview of the properties, applications, and fabrication techniques of nanofibers, which are characterized by their ultrafine diameters and unique features such as high surface area and aspect ratio. These attributes render nanofibers particularly advantageous for a wide range of applications, especially in the biomedical sector, encompassing areas like tissue engineering, drug delivery, and wound dressing. The article highlights various studies that illustrate the potential of nanofibers in addressing healthcare challenges, particularly their utilization in scaffolds for regenerative medicine and as carriers for controlled drug delivery. Furthermore, it discusses different preparation methods for nanofibers, including electrospinning and alternative techniques, while stressing the importance of polymer selection in achieving optimal drug-release properties. The article also delves into the application of nanofibers in tissue engineering, specifically for bone, cartilage, and vascular applications, and examines their emerging roles in organ-on-a-chip technology and contraceptive development. In conclusion, the article emphasizes the versatility and significance of nanofibers in advancing medical technologies and their potential to address contemporary health challenges. Collaborative efforts between material scientists and biologists are essential to foster interdisciplinary research aimed at improving electrospinning methodologies.

Background: The motivation of this paper is to analyze the growing air pollution level in the city of Bengaluru, as it was once a green city but is now facing problems with the use of private vehicles, such as increasing levels of air pollutants. Green buildings focus on reducing their negative environmental impacts by using less energy and water, and causing less disruption to the environment during construction. Green buildings, which also strive to enhance human health through the design of healthy indoor spaces, are arguably less well-known.Objective: The main objective is to analyze the most suitable zone in Bangalore for the construction of green buildings. The review of existing green building technologies with the use of natural materials, renewable energy, water conservation, and indoor air quality.Method: The methodology will include a study of six green building literature reviews with eminent researchers and scientists. The main principles of green building include having indoor air quality of Nitrogen oxides, volatile organic compounds, and particulate matter are the most common air impurities released into the atmosphere by the variability of natural processes and human actions. The advantages of lessened energy and water use are well known, but the potential advantages of green buildings for human health have only lately come into focus. In addition, case study review for Electronic City, Whitefield, and International Airport in BangaloreResult: To address the comparative study of case study review, Bangalore city data was collected regarding the pollutant levels, then linear regression models were created and reviewed to design green buildings in the future. Conclusion: The goal of the study is to comprehend how toxins, a rise in urban population density, the usage of novel artificial resources, and traffic contamination all work together to worsen indoor air quality and increase harmful impacts on people.

Vochysia haenkeana extract (Vh-E) was assessed against the neuromuscular blockade induced by Bothrops jararaca venom on chick biventer cervicis (BC) preparation. Pre- and post-venom incubation treatments (Pre-vit and Post-vit) were analysed here. Contractures ACh (110 µM) and KCl (20 mM) were evoked before and after addition of venom without stimulation. Vh-E (600 µg/mL) under Pre-vit was more efficient to neutralize the neuromuscular blockade by venom (40 µg/mL) [72.5±4.6% (venom) vs. 45.2±14% (Vh-E) of blockade, p<0.05, n=4]. Vh-E (600 µg/mL) did not cause significant changes under Post-vit [72.5±4.6% (venom) vs. 63.4±8.2% (Vh-E) of blockade, n=4]. The Pre-vit inhibited the blockade of the contracture to ACh (106±17% of response; n=4) while the Post-vit was able to attenuate the effect of the venom on this contracture (55±5% of response; n=4); related to those contractures to KCl both of treatments with Vh-E attenuated the blocker effect of the venom (62.5±7.7% and 55±5% of response for Pre-vit and Post-vit, respectively; n=4). In conclusion, Vh-E neutralizes partially the neuromuscular blockade in Pre-vit, an effect that can be related to preserved function of “extrinsic” post-synaptic receptors, by measured contractures in response to ACh. The myotoxicity of the venom was significantly reduced by Vh-E in both, Pre-vit and Post-vit, by measured contractures in response to KCl.

Hepatitis B virus (HBV) is one of the world’s major infectious diseases with 350 million people who are chronic carriers of HBV [1]. Significant minorities go on to develop liver cirrhosis or hepatocellular carcinoma and over 1 million die annually from HBV-diseased liver. Janahi E. at faculty of science, Bahrain University, Bahrain has submitted the following information [2], on HBV-genome organization as part of his Ph.D. degree (2007) in Imperial College, England. HBV genomic organization has 4 Open Reading Frames (ORFs) i.e. Pre-S/S Gene, Pre-C/C ORF, P ORF and X ORF. Regulatory Elements has 4 promoters (pre S2, pre S1, C promoters and X promoters), Pregenomic RNA, Enhancers (Enh 1 and Enh 2) where they are involved in cccDNA formation, Glococorticoid-Responsive Element which is located in X ORF and P ORF overlapping, Polyadenylation Signal (Direct Repeat 1 (DR1) and Direct Repeat 2 (DR2)), Epsilon-Stem Loop and Post-Transcriptional Regulatory Element. HBV genotype D is prevalent in our Middle East area. The HBV genome is a partially relaxed-circular dsDNA molecule consisting of a full length strand (minus strand) with a single unique nick and a complementary (positive strand) of variable length. HBV is considered as a para-retrovirus because its replication involves the reverse transcription of an intermediate-RNA function, of pre-genomic RNA (pgRNA). Replication of HBV genome starts with the encapsidation of the pgRNA and encodes HBV polymerase into an immature nucleocapsid formed by the viral core antigen.

Introduction and background: Hydatid disease (HD) is a parasitic infection caused by the larval form of Echinococcus granulosus. It is endemic in regions with widespread livestock farming and close human-animal contact. Although the liver and lungs are the most frequently involved organs, rare cases of primary subcutaneous hydatid cysts have been reported, especially in the absence of visceral involvement. Gluteal localization is extremely rare and may be misdiagnosed due to its nonspecific presentation.Case presentation: We report the case of a 25-year-old woman who presented with a gradually enlarging, painless swelling over the lateral aspect of her right buttock, noted over five months. There were no systemic symptoms, and she had no history of trauma or prior medical conditions. Physical examination revealed a well-circumscribed, fluctuating, non-mobile mass measuring 5 × 4 cm with no overlying skin changes. Laboratory results were within normal limits. Ultrasound imaging revealed multiple well-defined cystic lesions in the subcutaneous tissue. Chest X-ray and abdominal ultrasound excluded hepatic or pulmonary hydatidosis. A diagnosis of primary subcutaneous hydatid cyst was made. The patient underwent pericystectomy under spinal anesthesia. Intraoperatively, typical hydatid features were noted, and the cyst cavity was thoroughly irrigated with hypertonic saline. Postoperatively, Albendazole therapy (400 mg twice daily) was administered for three months. There were no signs of recurrence during 6 months of follow-up.Discussion: Primary soft tissue hydatid cysts are rare and can mimic benign soft tissue tumors or abscesses. In endemic regions, such lesions should be carefully evaluated using imaging and clinical suspicion. The diagnosis is typically made through imaging, and definitive treatment includes surgical excision with careful handling to prevent dissemination, accompanied by pre- and postoperative anthelmintic therapy to minimize recurrence.Conclusion: This case highlights the importance of considering hydatid disease in the differential diagnosis of gluteal masses, especially in endemic areas. Prompt diagnosis and combined surgical and pharmacologic therapy can lead to excellent outcomes without recurrence.

Polyamines are aliphatic amines found in all living cells, and they are necessary for several fundamental cell processes. Their protective role against various abiotic stress factors has been reported in different plant species, while the mechanism by which polyamines act during plant-microbe interaction is still poorly understood. The several types of the interactions between the plants and the microbes outline a divers and complex picture of the action mechanisms. The present review focuses on this aspect of the mode of action of polyamines and polyamine metabolism during biotroph and necrotroph interactions between plants and pathogens. It seems that apoplastic metabolism of polyamines of the host and the accumulation of H2O2 as a result of polyamine catabolism play important signalling role in plant-pathogen interactions. The manipulation of the members of the polyamine-induced signalling pathways could increase the host plant resistance to biotic stresses.

Background: Allergic rhinitis (AR) affects approximately 10% - 30% of the global population and represents a significant healthcare burden. The condition involves complex inflammatory pathways where oxidative stress plays a crucial role, with malondialdehyde serving as a key biomarker of cellular damage. Quercetin, a naturally occurring flavonoid, demonstrates promising antioxidant and anti-inflammatory properties that may benefit allergic rhinitis management.Methods: We conducted a systematic review following PRISMA 2020 guidelines. Four electronic databases (PubMed, Google Scholar, SagePub, and Semantic Scholar) were searched for studies published between 2000 and 2024. The PICO framework guided study selection, focusing on quercetin intervention in allergic rhinitis models. Both preclinical and clinical studies measuring malondialdehyde levels or clinical symptom improvement were included.Results: Eighteen studies met our inclusion criteria, comprising 14 animal studies and four human clinical trials. Preclinical evidence consistently demonstrated quercetin’s ability to reduce malondialdehyde levels across various tissues, including serum, lung, and liver samples. Human studies showed superior symptom improvement when quercetin-containing supplements were added to standard therapy compared to conventional treatment alone.The primary mechanism involves nuclear factor erythroid 2-related factor 2 pathway activation, enhancing endogenous antioxidant enzyme production.Conclusion: Current evidence supports quercetin’s effectiveness in reducing oxidative stress and improving clinical outcomes in allergic rhinitis through dual antioxidant and anti-inflammatory mechanisms. While most evidence derives from animal studies, quercetin Shows promise as safe adjuvant therapy. Large-scale human clinical trials using high- high-bioavailability formulations are needed to establish standardized clinical protocols.Key messages:•    Quercetin consistently reduces oxidative stress markers in allergic rhinitis models.•    Clinical symptoms improve significantly when quercetin supplements are added to standard therapy.•    The therapeutic mechanism involves both direct antioxidant activity and endogenous defense system enhancement.•    High-quality human clinical trials are needed to establish definitive treatment guidelines.

Dental implantology represents a cornerstone of modern restorative dentistry, providing long-term functional and esthetic rehabilitation of missing teeth. The process of osseointegration—first introduced by Brånemark—refers to the direct structural and functional connection between living bone and the surface of a load-bearing implant [Brånemark, 1985].

This study proposes a new type of flange-widened bone-type semi-rigid frame node, and takes a 4-story frame as an example, uses the finite element software Abaqus  to analyze its seismic performance  under different seismic waves, and compares it with the traditional rigid connection frame. The results show that the stiffness of the new node frame is slightly lower than that of the tradition rigid node frame, which reduces the horizontal displacement of each layer under the action of earthquake, optimizes the deformation capacity, and enhances the force performance and ductility, the maximun value of the base shear force is lower than that of the traditional rigid frame, which can effectively disperse and dissipate the seismic energy andimprove the overall stabitity of the structure; the elastic-plastic interlayer displacement angle is less than 1/50 under rare earthquakes, which meets the requirements of the specification and can achieve the goal of “no collapse in a large earthquake”. In addition, the node can effectively improve the safety and reliability  of the structure in actual engineering.

The resistance to anthelmintics in poultry farming and the challenges with the restricted use of drugs in organic farms make the use of biological controllers an innovative bridge to verminosis control. This paper aims to evaluate the efficacy of the larvicidal fungus Duddingtonia flagrans and the ovicidal fungus Pochonia chlamydosporia in Hy-line Brown (Gallus Gallus Domesticus) layer farms. Both fungi were combined in the core of the feed administered to the birds of the treated groups. 28,000 birds were used and divided into three treated groups (TG) in which the feed containing the fungus was administered. The poultry house itself manufactures the birds’ feed; the formula was included in the nucleus at a dose of 100 grams per ton of feed for 7 months. The concentration was 105 chlamydospores of P. chlamydosporia and D. flagrans per gram of the formulation. The control group (CG) received regular food from the farm. The birds were separated into four sheds with 7,000 birds in each. The egg per gram of feces (EPG) testing was performed using fresh fecal samples collected from the sheds over six months. Weather data was collected during the experiment. There was a reduction in the EPG count into three treated groups. The most prevalent helminth was the genus Ascaris. The formulation tested shows little efficacy in this dosage. Key points:•    The use of the fungus P. chlamydosporia and D. flagrans in organic farms;•    Use of biocontrol agents without chemicals in poultry;