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1.
BMC Infect Dis ; 24(1): 403, 2024 Apr 15.
Article in English | MEDLINE | ID: mdl-38622539

ABSTRACT

BACKGROUND: Monkeypox is an emerging infectious disease with confirmed cases and deaths in several parts of the world. In light of this crisis, this study aims to analyze the global knowledge pattern of monkeypox-related patents and explore current trends and future technical directions in the medical development of monkeypox to inform research and policy. METHODS: A comprehensive study of 1,791 monkeypox-related patents worldwide was conducted using the Derwent patent database by descriptive statistics, social network method and linear regression analysis. RESULTS: Since the 21st century, the number of monkeypox-related patents has increased rapidly, accompanied by increases in collaboration between commercial and academic patentees. Enterprises contributed the most in patent quantity, whereas the initial milestone patent was filed by academia. The core developments of technology related to the monkeypox include biological and chemical medicine. The innovations of vaccines and virus testing lack sufficient patent support in portfolios. CONCLUSIONS: Monkeypox-related therapeutic innovation is geographically limited with strong international intellectual property right barriers though it has increased rapidly in recent years. The transparent licensing of patent knowledge is driven by the merger and acquisition model, and the venture capital, intellectual property and contract research organization model. Currently, the patent thicket phenomenon in the monkeypox field may slow the progress of efforts to combat monkeypox. Enterprises should pay more attention to the sharing of technical knowledge, make full use of drug repurposing strategies, and promote innovation of monkeypox-related technology in hotspots of antivirals (such as tecovirimat, cidofovir, brincidofovir), vaccines (JYNNEOS, ACAM2000), herbal medicine and gene therapy.


Subject(s)
Communicable Diseases, Emerging , Mpox (monkeypox) , Vaccines , Humans , Communicable Diseases, Emerging/drug therapy , Communicable Diseases, Emerging/epidemiology , Mpox (monkeypox)/drug therapy , Mpox (monkeypox)/epidemiology , Technology
2.
ACS Nano ; 18(15): 10439-10453, 2024 Apr 16.
Article in English | MEDLINE | ID: mdl-38567994

ABSTRACT

The cGAS-STING pathway plays a crucial role in innate immune activation against cancer and infections, and STING agonists based on cyclic dinucleotides (CDN) have garnered attention for their potential use in cancer immunotherapy and vaccines. However, the limited drug-like properties of CDN necessitate an efficient delivery system to the immune system. To address these challenges, we developed an immunostimulatory delivery system for STING agonists. Here, we have examined aqueous coordination interactions between CDN and metal ions and report that CDN mixed with Zn2+ and Mn2+ formed distinctive crystal structures. Further pharmaceutical engineering led to the development of a functional coordination nanoparticle, termed the Zinc-Mn-CDN Particle (ZMCP), produced by a simple aqueous one-pot synthesis. Local or systemic administration of ZMCP exerted robust antitumor efficacy in mice. Importantly, recombinant protein antigens from SARS-CoV-2 can be simply loaded during the aqueous one-pot synthesis. The resulting ZMCP antigens elicited strong cellular and humoral immune responses that neutralized SARS-CoV-2, highlighting ZMCP as a self-adjuvant vaccine platform against COVID-19 and other infectious pathogens. Overall, this work establishes a paradigm for developing translational coordination nanomedicine based on drug-metal ion coordination and broadens the applicability of coordination medicine for the delivery of proteins and other biologics.


Subject(s)
Nanoparticles , Neoplasms , Vaccines , Animals , Mice , Neoplasms/therapy , Adjuvants, Immunologic , Immunotherapy/methods , Nanoparticles/chemistry
3.
PLoS One ; 19(4): e0298117, 2024.
Article in English | MEDLINE | ID: mdl-38573916

ABSTRACT

Selection of adjuvant to be combined with the antigen is an extremely important point for formulating effective vaccines. The aim of this study was to evaluate reactogenicity, levels of IgM, IgG and subclasses (IgG1, IgG2b and IgG3), and protection elicited by vaccine formulations with association of chitosan coated alginate or Montanide ISA 61 with γ-irradiated Brucella ovis. The alginate/chitosan biopolymers as well as the Montanide ISA 61 emulsion elicited intense and long-lasting local response, especially when associated with the antigen. However, Montanide ISA 61 induced less intense reactogenicity when compared to alginate/chitosan. Furthermore, γ-irradiated B. ovis with Montanide ISA 61 induced higher levels of IgG2b an important marker of cellular immune response. In conclusion, Montanide ISA 61 resulted in milder reactogenicity when compared to the alginate/chitosan, while it induced a high IgG2b/IgG1 ratio compatible with a Th1 profile response.


Subject(s)
Chitosan , Mineral Oil , Vaccines , Animals , Mice , Sheep , Adjuvants, Vaccine , Capsules , Adjuvants, Immunologic/pharmacology , Immunoglobulin G , Mice, Inbred BALB C
4.
P R Health Sci J ; 43(1): 3-8, 2024 Mar.
Article in English | MEDLINE | ID: mdl-38512755

ABSTRACT

Pet ownership and therapy dogs as companion animals and emotional support have potential health benefits. We report the experiences at a COVID-19 vaccination center after authorizing children's vaccines. When the Pfizer-BioNTech vaccine for children aged 5 to 11 years was authorized for emergency use, we adapted the center's space to receive children, adding cartoon posters and balloons and using children's adhesive bandages, among others. Located at a Campus with six health professional schools, medical students dressed as storybook or movie characters. Children were asked to make drawings during the post vaccination observation period. We incorporated therapy dogs as part of our strategy for a child-friendly center during vaccination activities. Parents expressed that the COVID-19 immunization seemed to be better accepted by children as the dogs in the center entertained them. Many children were in close contact with the dogs while receiving the shots, caressing them, or having the small dogs on their laps. Children's drawings reflected colors, flowers, families, images of happiness, dogs with their names, their own pets, and superhero characters. There were no negative images of syringes, injections, or germs. To our knowledge, this was the only vaccine center in Puerto Rico that implemented therapy dogs as a strategy to create a friendly environment for COVID 19 immunization efforts targeted for children. Based on this experience, we encourage the use of therapy dogs in other immunization activities and will further gather prospective data in the future.


Subject(s)
COVID-19 , Vaccines , Child , Humans , Animals , Dogs , COVID-19 Vaccines , Therapy Animals , Prospective Studies , COVID-19/prevention & control , Vaccination , Puerto Rico
5.
J Anim Sci ; 1022024 Jan 03.
Article in English | MEDLINE | ID: mdl-38417056

ABSTRACT

Ganoderma lucidum (GL) is a mushroom that has been widely used in Asia for its immunostimulatory and anti-inflammatory capacity, which has been hypothesized to be attributed mainly to the recognition of its cell-surface patterns by cells of the immune system present in the gastrointestinal tract, resulting in a cascade of modulatory events. However, the nutraceutical properties of GL have not been tested in dogs. Forty adult beagles were used in a completely randomized design. The objective of the present study was to evaluate the effects of dietary inclusion of GL on peripheral blood mononuclear cells (PBMC; T cells, B cells, monocytes, and natural killers), vaccine response, nutrient digestibility, fecal fermentative end-products, and skin and coat quality of adult dogs. Dogs were fed a commercial dry extruded complete and balanced diet plus GL top-dressed daily upon feeding time. Four experimental treatments were used: 0% GL supplementation (control), 5 mg/kg BW of GL, 10 mg/kg BW of GL, or 15 mg/kg BW of GL. Following a 7 d adaptation to the control diet, dogs were fed their respective treatment diets for 28 d. They were challenged with vaccination of a modified live virus Canine Distemper, Adenovirus Type 1 (Hepatitis), Adenovirus Type 2, Parainfluenza, and Parvovirus and killed Rabies Virus on day 7 with blood collections on days 0, 14, and 28. The inclusion of GL in all dosages was well-accepted by all dogs, with no detrimental effect on macronutrient apparent total tract digestibility. There was a trend that the percentage of major histocompatibility II (MHC-II) from B cells was greater in dogs fed 15 mg/kg of GL (41.91%) compared to the control group (34.63%). The phagocytosis response tended to have treatment-by-time interaction among treatments; dogs fed 15 mg/kg of GL tended to have greater phagocytosis activity on day 28 than dogs from the control group and dogs fed 5 mg/kg of GL. The vaccine-specific serum immunoglobulin G (IgG) concentrations were higher in the group supplemented with 15 mg/kg of GL compared to treatment control 7 d after the vaccination for rabies. These data suggest that the inclusion of GL had no detrimental effects on any analyzed PBMC. Due to changes in immune parameters among treatments, GL may also exert beneficial immunostimulatory effects in healthy adult dogs when provided at a daily dose of 15 mg/ kg BW.


Ganoderma lucidum (GL) is a fungus from which products have become popular in the human food and health industry over the past decade. Due to this, a growing interest in using GL extracts in animal products has also developed. The current study investigated the nutritional properties of GL supplemented to adult beagles in three different inclusion levels in terms of body weight (BW; 5, 10, and 15 mg/kg BW). The results indicated no impact on the overall health, apparent total tract macronutrient digestibility (ATTD), fecal microbial DNA, and skin and coat health. The highlighted results included increased phagocytic activity and vaccine-specific response in the group of dogs supplemented with 15 mg/kg BW.


Subject(s)
Reishi , Vaccines , Dogs , Animals , Digestion , Leukocytes, Mononuclear , Feces , Diet/veterinary , Dietary Supplements , Animal Feed/analysis
6.
Poult Sci ; 103(4): 103496, 2024 Apr.
Article in English | MEDLINE | ID: mdl-38330890

ABSTRACT

The avian influenza virus is infected through the mucosal route, thus mucosal barrier defense is very important. While the inactivated H9N2 vaccine cannot achieve sufficient mucosal immunity, adjuvants are needed to induce mucosal and systemic immunity to prevent poultry from H9N2 influenza virus infection. Our previous study found that polysaccharide from Atractylodes macrocephala Koidz binding with zinc oxide nanoparticles (AMP-ZnONPs) had immune-enhancing effects in vitro. This study aimed to evaluate the mucosal immune responses of oral whole-inactivated H9N2 virus (WIV)+AMP-ZnONPs and its impact on the animal challenge protection, and the corresponding changes of pulmonary metabolomics after the second immunization. The results showed that compared to the WIV, the combined treatment of WIV and AMP-ZnONPs significantly enhanced the HI titer, IgG and specific sIgA levels, the number of goblet cells and intestinal epithelial lymphocytes (iIELs) as well as the expression of J-chain, polymeric immunoglobulin receptor (pIgR), interleukin-10 (IL-10), tumor necrosis factor-α (TNF-α) and transforming growth factor-ß (TGF-ß). In viral attack experiments, WIV combing with AMP-ZnONPs effectively reduced lung damage and viral titers in throat swabs. Interestingly, significant changes of both the IgA intestinal immune network and PPAR pathway could also be found in the WIV+AMP-ZnONPs group compared to the non-infected group. Taken together, these findings suggest that AMP-ZnONPs can serve as a potential mucosal vaccine adjuvant, thereby avoiding adverse stress and corresponding costs caused by vaccine injection.


Subject(s)
Influenza A Virus, H9N2 Subtype , Influenza Vaccines , Influenza in Birds , Vaccines , Animals , Immunity, Mucosal , Chickens , Antibodies, Viral , Adjuvants, Immunologic/pharmacology , Administration, Oral , Vaccines, Inactivated , Influenza in Birds/prevention & control
7.
Ageing Res Rev ; 95: 102229, 2024 Mar.
Article in English | MEDLINE | ID: mdl-38364913

ABSTRACT

Alzheimer's Disease (AD) patients experience diverse symptoms, including memory loss, cognitive impairment, behavioral abnormalities, mood changes, and mental issues. The fundamental objective of this review is to discuss novel therapeutic approaches, with special emphasis on recently approved marketed formulations for the treatment of AD, especially Aducanumab, the first FDA approved moiety that surpasses the blood-brain barrier (BBB) and reduces amyloid plaques in the brain, thereby reducing associated cognitive decline. However, it is still in the phase IV trial and is to be completed by 2030. Other drugs such as lecanemab are also under clinical trial and has recently been approved by the FDA and is also discussed here. In this review, we also focus on active and passive immunotherapy for AD as well as several vaccines, such as amyloid-beta epitope-based vaccines, amyloid-beta DNA vaccines, and stem cell therapy for AD, which are in clinical trials. Furthermore, ongoing pre-clinical trials associated with AD and other novel strategies such as curcumin-loaded nanoparticles, Crispr/ cas9, precision medicine, as well as some emerging therapies like anti-sense therapy are also highlighted. Additionally, we discuss some off-labeled drugs like non-steroidal anti-inflammatory drugs (NSAID), anti-diabetic drugs, and lithium, which can manage symptoms of AD and different non-pharmacological approaches are also covered which can help to manage AD. In summary, we have tried to cover all the therapeutic interventions which are available for the treatment and management of AD under sections approved, clinical phase, pre-clinical phase or futuristic interventions, off-labelled drugs, and non-pharmacological interventions for AD, offering positive findings and well as challenges that remain.


Subject(s)
Alzheimer Disease , Vaccines , Humans , Alzheimer Disease/drug therapy , Amyloid beta-Peptides/metabolism , Brain/metabolism , Blood-Brain Barrier , Vaccines/therapeutic use
8.
Int J Biol Macromol ; 262(Pt 2): 129982, 2024 Mar.
Article in English | MEDLINE | ID: mdl-38354941

ABSTRACT

Oral vaccines are a safe and convenient alternative to injected vaccines and have great potential to prevent major infectious diseases. However, the harsh gastrointestinal (GI) environment, mucus barriers, low immunogenicity, and lack of effective and safe mucosal adjuvants are the major challenges for oral vaccine delivery. In recent years, nanoparticle-based strategies have become attractive for improving oral vaccine delivery. Here, the dendritic fibrous nano-silica (DFNS) grafted with Cistanche deserticola polysaccharide (CDP) nanoparticles (CDP-DFNS) were prepared and investigated how to impact the immune responses. CDP-DFNS facilitated the antigen uptake in mouse bone marrow-derived dendritic cells (BMDCs), and induce the activation of DCs in vitro. Furthermore, in vivo experiments, the result showed that the uptake efficiency by Peyer's patches (PPs) of CDP-DFNS/BSA was the best. And CDP-DFNS/BSA then significantly activated the DCs in lamina propria (LP), and T/B cells in PPs and mesenteric lymph nodes (MLNs). Moreover, the memory T cell responses in later period of vaccination was stronger than other groups. In addition, CDP-DFNS/BSA enhanced BSA-specific antibody IgG, IgA production, and SIgA secretion, was effective at inducing a strong mixed Th1/Th2 response and mucosal antibody responses. These results indicated that CDP-DFNS deserves further consideration as an oral vaccine adjuvant delivery system.


Subject(s)
Cistanche , Vaccines , Animals , Mice , Adjuvants, Vaccine , Silicon Dioxide , Mucous Membrane , Adjuvants, Immunologic/pharmacology , Adjuvants, Pharmaceutic , Polysaccharides/pharmacology , Immunity, Mucosal
9.
Vet Immunol Immunopathol ; 269: 110726, 2024 Mar.
Article in English | MEDLINE | ID: mdl-38341929

ABSTRACT

Probiotics are live microorganisms that, confer health benefits to the host when supplemented in adequate amounts. They can promote immunomodulation by inducing phagocyte activity, leukocyte proliferation, antibody production, and cytokine expression. Lactic acid bacteria (BAL) are important probiotic specimens with properties that can improves ruminant nutrition, productivity and immunity. The aim of the present study was to evaluate the immunomodulatory effect of the supplementation with Lacticaseibacillus casei CB054 in calve vaccinated against bovine infectious rhinotracheitis (IBR). Calve were vaccinated with a commercial IBR vaccine, on day 0 and received a booster dose on day 21. L. casei CB054 was orally administered (4 ×109 UFC) for 35 days, while a non-supplemented control group received Phosphate Buffer Saline (PBS). Stimulation of bovine splenocytes with L. casei CB054 markedly enhanced mRNA transcription levels of cytokines IL2, IL4, IL10 and IL17 genes. Calves supplemented with L. casei CB054 showed significantly higher (p < 0.05) specific anti-BoHV-1 IgG levels, higher serum neutralization, as well as higher mRNA transcription for IL2, IL4, IL10 and IL17 genes in Peripheral Blood Mononuclear Cells (PBMCs) comparing with control calves. Supplemented calve had an average weight gain of ∼14 kg more than non-supplemented during the experimental period. These results suggest that L. casei CB054 supplementation increase immunogenicity of a commercial IBR vaccine in cattle and improve weight gain.


Subject(s)
Cattle Diseases , Herpesvirus 1, Bovine , Infectious Bovine Rhinotracheitis , Lacticaseibacillus casei , Vaccines , Animals , Cattle , Interleukin-10 , Interleukin-2 , Interleukin-4 , Leukocytes, Mononuclear , Cytokines , Dietary Supplements , Immunomodulation , Weight Gain , RNA, Messenger , Cattle Diseases/prevention & control
10.
ACS Nano ; 18(6): 4957-4971, 2024 Feb 13.
Article in English | MEDLINE | ID: mdl-38288709

ABSTRACT

Vaccine technology is effective in preventing and treating diseases, including cancers and viruses. The efficiency of vaccines can be improved by increasing the dosage and frequency of injections, but it would bring an extra burden to people. Therefore, it is necessary to develop vaccine-boosting techniques with negligible side effects. Herein, we reported a cupping-inspired noninvasive suction therapy that could enhance the efficacy of cancer/SARS-CoV-2 nanovaccines. Negative pressure caused mechanical immunogenic cell death and released endogenous adjuvants. This created a subcutaneous niche that would recruit and activate antigen-presenting cells. Based on this universal central mechanism, suction therapy was successfully applied in a variety of nanovaccine models, which include prophylactic/therapeutic tumor nanovaccine, photothermal therapy induced in situ tumor nanovaccine, and SARS-CoV-2 nanovaccine. As a well-established physical therapy method, suction therapy may usher in an era of noninvasive and high-safety auxiliary strategies when combined with vaccines.


Subject(s)
Cancer Vaccines , Nanoparticles , Neoplasms , Vaccines , Humans , Nanovaccines , Suction , Neoplasms/therapy , Physical Therapy Modalities , Immunotherapy
11.
Brasília, D.F.; OPAS; 2024-01-12. (OPAS/BRA/FGL/24-0001).
Non-conventional in Portuguese | PAHOIRIS | ID: phr2-59165

ABSTRACT

O presente documento denota o Relatório Técnico de Gestão de Imunização do Brasil, referente ao ano de 2022 – Relatório Anual Brasil 2022, no contexto da Estratégia de Cooperação do País 2022-2027 (ECP/2022-2027), promovida pelo escritório da OPAS/OMS no Brasil, e Ministério da Saúde do Brasil, como uma oportunidade de reforçar os compromissos e as alianças a fim de enfrentar os grandes desafios existentes no campo da saúde pública, especificamente na imunização e, com isso contribuir com os objetivos de recuperação das coberturas vacinais, ao longo do curso de vida. A Coordenação de Imunização da OPAS/OMS no Brasil executou ações dos componentes do Programa Nacional de Imunizações (PNI) em cooperação com o Brasil nas cinco prioridades estratégicas e áreas de foco definidas na ECP/2022-2027: 1) proteger e promover a saúde da população, centrada nas pessoas, famílias e comunidades, especialmente aquelas em situação de vulnerabilidade; 2) recuperar, melhorar e tornar mais forte os serviços de saúde e os programas prioritários impactados pela pandemia da covid-19; 3) contribuir para o desenvolvimento de um Sistema Único de Saúde (SUS) mais resiliente, equitativo e eficaz, de acordo com as necessidades de saúde da população; 4) impulsionar a pesquisa, a inovação e a geração de conhecimentos científicos e tecnológicos em saúde, incluindo aqueles voltados à pesquisa, ao desenvolvimento e à produção de medicamentos, fitoterápicos e produtos tradicionais em saúde, vacinas, biotecnológicos e tecnologias em saúde e 5) reforçar a prevenção, a preparação, a resposta oportuna e a recuperação nas emergências e nos desastres. Neste documento, será apresentada uma análise retrospectiva da situação epidemiológica das doenças preveníveis por vacinação, das estratégias de vacinação, dos riscos e impactos para 2023, bem como dos Eventos Supostamente Atribuíveis à Vacinação ou Imunização (ESAVI). Ainda, será exibido no documento a participação da OPAS/OMS Brasil na elaboração das propostas de melhorias e avanços para o PNI do Brasil e contribuições com os gestores do SUS e outros parceiros que atuam ativamente nesse propósito.


Subject(s)
Immunization , Vaccines , Vaccination , Measles , Poliomyelitis , Yellow Fever , COVID-19 , Influenza, Human , Technical Cooperation , Brazil
12.
Clin Rheumatol ; 43(3): 1199-1206, 2024 Mar.
Article in English | MEDLINE | ID: mdl-38285376

ABSTRACT

OBJECTIVES: At the end of 2022, the COVID-19 outbreak erupted in China, and BA.5.2 or BF.7 subtypes of Omicron novel variations were implicated in more than 90% of the cases. We created a real-world questionnaire survey to better understand how this new variant pandemic was affecting rheumatic patients in China. METHODS: During the COVID-19 outbreak in China, the subjects of this study were rheumatic patients and non-rheumatic individuals (control group), who were matched for sex and age. Professional physicians carefully questioned the participants before administering a questionnaire as part of the study. This study focused on the general baseline characteristics, clinical symptoms and treatment after COVID-19 infection, and the target populations' awareness of COVID-19. RESULTS: The study included 1130 participants, of whom 572 were assigned to the rheumatic group and 558 to the control group. The percentage of vaccinated controls was significantly higher than that of rheumatic patients (90.1% vs. 62.8%, p < 0.001), while the rate of COVID-19 infection was not significantly different between the two groups (82.3% vs. 86.6%, p = 0.051). Patients with rheumatic disease experienced substantially more days of fever following infection (2.87 ± 3.42 vs. 2.18 ± 1.65, p = 0.002) compared to individuals in the control group. The rheumatic patients had a greater prevalence of cough (67.1% vs. 54.0%, p < 0.001), somnipathy (13.8% vs. 6.0%, p < 0.001), and conjunctivitis/ophthalmodynia (5.3% vs. 2.1%, p = 0.008), while dry throat/throat pain/weakness (49.9% vs. 59.4%, p = 0.003), myalgia/osteodynia (33.3% vs. 41.8%, p = 0.003), and dyspnea (14.0% vs. 25.3%, p < 0.001) were more likely to occur in non-rheumatic group after infection. Human immunoglobulin (2.1% vs. 0.2%, p = 0.006), glucocorticoids (19.5% vs. 1.6%, p < 0.001), oxygen support (6.8% vs. 2.1%, p < 0.001), and traditional Chinese medicine (21.9% vs. 16.6%, p = 0.037) were all more frequently used by rheumatic patients with COVID-19 infection. People in the control group were more confused about whether to use masks in following social activities after contracting COVID-19 (14.7% vs. 7.6%, p = 0.001). In the control group, more individuals than patients with rheumatic disease (25.1% vs. 13.4%, p < 0.001) expressed an interest to receive the vaccine again. After being exposed to COVID-19, the majority of rheumatic patients (66.9%) reported no discernible change, only 29.1% reported a worsening of their symptoms, and the remaining 4% indicated an improvement. CONCLUSIONS: After the COVID-19 outbreak in China, the proportion of patients with rheumatic diseases infected with the virus was similar to that of normal individuals. But the clinical symptoms, follow-up treatment requirements, and awareness of the COVID-19 among rheumatic patients were distinct from those among non-rheumatic patients, necessitating the use of individualized diagnosis and treatment plans as well as health advice by medical professionals in clinical work. Key Points • Despite there were different comorbidities and vaccination rates, the rate of COVID-19 infection in patients with rheumatic disease was similar to that of normal individuals. • After COVID-19 infection, rheumatic patients and normal controls had different clinical symptoms and drug usage. • After being exposed to COVID-19, the majority of rheumatic patients felt no significant change in the primary disease, while the normal controls was more likely to accept a new vaccine injection and confused about whether to use masks in following social activities.


Subject(s)
COVID-19 , Rheumatic Diseases , Vaccines , Humans , COVID-19/epidemiology , Rheumatic Diseases/complications , Rheumatic Diseases/epidemiology , Myalgia , China/epidemiology
13.
ACS Appl Bio Mater ; 7(2): 1064-1072, 2024 Feb 19.
Article in English | MEDLINE | ID: mdl-38286026

ABSTRACT

Virus-like particle (VLP) vaccine is considered to be the most promising candidate alternative to the traditional inactivated vaccine for foot-and-mouth disease (FMD). To elicit a desired immune response, hollow mesoporous silica nanoparticles (HMSNs) have been synthesized and utilized as a nanocarrier for FMD VLP vaccine delivery. The as-prepared HMSNs displayed a relatively small particle size (∼260 nm), large cavity (∼150 nm), and thin wall (∼55 nm). The inherent structural superiorities make them ideal nanocarriers for the FMD VLP vaccine, which exhibited good biocompatibility, great protein-loading capacity, high antibody-response level, and protective efficiency, even comparable to commercial adjuvant ISA 206. All the results suggested that HMSNs may be a valid nanocarrier in VLP-based vaccines.


Subject(s)
Foot-and-Mouth Disease Virus , Foot-and-Mouth Disease , Nanoparticles , Vaccines , Animals , Silicon Dioxide/chemistry , Foot-and-Mouth Disease/prevention & control , Nanoparticles/chemistry
14.
BMJ Open ; 14(1): e077411, 2024 01 22.
Article in English | MEDLINE | ID: mdl-38262649

ABSTRACT

OBJECTIVE: This study aims to understand reasons for vaccine hesitancy (VH) among general practioners (GPs) and paediatricians. We aim to analyse how and when the healthcare workers (HCWs) developed vaccine-hesitant views and how they transfer these to patients. DESIGN AND SETTING: Semistructured interviews with vaccine-hesitant GPs and paediatricians were conducted in Austria and Germany using an explorative qualitative research design. PARTICIPANTS: We contacted 41 physicians through letters and emails and 10 agreed to participate, five were male and five female. DATA COLLECTION AND ANALYSIS: Ten interviews were recorded, transcribed verbatim and anonymised. The material was analysed inductively following a grounded theory approach with open coding using the software atlas.ti. RESULTS: Key themes that were identified were education and career path, understanding of medicine and medical profession, experiences with vaccines, doctor-patient interactions and continuous education activities and the link to VH. GPs and paediatricians' vaccine-hesitant attitudes developed during their medical training and, in particular, during extracurricular training in homeopathy, which most of the participants completed. Most participants work in private practices rather than with contracts with social insurance because they are not satisfied with the health system. Furthermore, they are critical of biomedicine. Most of the interview partners do not consider themselves antivaccination, but are sceptical towards vaccines and especially point out the side effects. Most do not vaccinate in their practices and some do only occasionally. Their vaccine-hesitant views are often fostered through respective online communities of vaccine-hesitant HCWs. CONCLUSIONS: More studies on a connection between complementary medicine and vaccine-hesitant views of HCWs are needed. Education about vaccines and infectious diseases among healthworkers must increase especially tailored towards the use of internet and social media. Physicians should be made aware that through time and empathy towards their patients they could have a positive impact on undecided patients and parents regarding vaccine decisions.


Subject(s)
General Practitioners , Vaccines , Humans , Female , Male , Austria , Vaccination Hesitancy , Pediatricians , Germany
15.
J Trace Elem Med Biol ; 83: 127394, 2024 May.
Article in English | MEDLINE | ID: mdl-38262194

ABSTRACT

BACKGROUND: Aluminum-based adjuvants (ABAs) enhance the immune response following vaccine injection. Their mechanisms of action are not fully understood, and their bio-persistency have been described associated with long-term adverse effects. METHODS: We evaluated and compared the cellular effects of the two main ABAs and whole vaccines on ATP production, ROS generation and cytokines production (IL-6 and IL-10), using THP-1 cells. RESULTS: ABAs altered the cell energy metabolism by increasing ROS production after 24 h and reducing ATP production after 48 h. In addition, both ABAs and whole vaccines induced different kinetics of IL-6 production, whereas only ABAs induced IL-10 secretion. CONCLUSION: This study showed clearly, for a first time, a difference in cellular response to the ABAs and whole vaccines which should be taken into consideration in future studies focusing on the effect of ABA in vaccines. Future studies on ABAs should also pay attention to mitochondrial function alterations following exposure to ABA-containing vaccines.


Subject(s)
Aluminum , Vaccines , Humans , Aluminum/pharmacology , Interleukin-10 , Monocytes , THP-1 Cells , Interleukin-6 , Reactive Oxygen Species , Adjuvants, Immunologic/adverse effects , Adenosine Triphosphate
16.
BMC Public Health ; 24(1): 257, 2024 01 22.
Article in English | MEDLINE | ID: mdl-38254028

ABSTRACT

BACKGROUND: Adolescent athletes' values ​regarding health behaviors, including their attitudes toward doping, are largely derived from those of their parents. Therefore, clarifying the factors that affect parents' intentions regarding their children's medicine intake and nutrition can help elucidate the process of forming values ​​of healthy behaviors in young athletes. METHODS: Between March 8 and March 9, 2021, an online questionnaire survey was conducted via an Internet research company; data from 2,000 residents in Japan were collected. Participants were male and female residents aged 30-59 years with children in elementary or high school and belonging to sports clubs. The survey items included respondent's and child's basic information, respondent's health literacy, and level of sports in which the respondent and child were (or are) engaged. Respondents were also asked if they would like their children to receive prescription drugs, over-the-counter drugs, herbal medicines, vaccines, supplements, or energy drinks. Logistic regression analysis was performed to analyze the relationship between respondents' basic information and health literacy and their intention to receive prescription and over-the-counter drugs, herbal medicines, vaccines, supplements, and energy drinks. RESULTS: Higher parental health literacy was associated with higher children's willingness to receive prescription drugs (odds ratio [OR] = 1.025, 95% confidence interval [CI]: 1.016-1.035), over-the-counter drugs (OR = 1.012, 95% CI: 1.003-1.021), prescription herbal medicines (OR = 1.021, 95% CI: 1.021-1.030), over-the-counter herbal medicines (OR = 1.012, 95% CI: 1.003-1.021), and vaccines (OR = 1.025, 95% CI: 1.016-1.035). Conversely, the children's intention to receive energy drinks (OR = 0.990, 95% CI: 0.980-1.000) decreased significantly. As the child's athletic level increased, parents' willingness for their children to receive oral prescription medicines decreased (OR = 0.886, 95% CI: 0.791-0.992) and that to receive supplements (OR = 1.492, 95% CI: 1.330-1.673) and energy drinks significantly increased (OR = 1.480, 95% CI: 1.307-1.676). CONCLUSION: Health literacy of adolescent athletes' parents is associated with their children's willingness to receive medicines. Healthcare providers should counsel parents of adolescent athletes to allow their children to receive necessary drug treatments and prevent doping violations caused by supplement intake.


Subject(s)
Energy Drinks , Health Literacy , Prescription Drugs , Sports , Vaccines , Child , Adolescent , Female , Male , Humans , Intention , Cross-Sectional Studies , Athletes , Nonprescription Drugs , Plant Extracts
17.
Mini Rev Med Chem ; 24(3): 254-264, 2024.
Article in English | MEDLINE | ID: mdl-36967461

ABSTRACT

Coronavirus disease-19 (COVID-19), a serious pandemic due to the SARS-CoV-2 virus infection, caused significant lockdowns, healthcare shortages, and deaths worldwide. The infection leads to an uncontrolled systemic inflammatory response causing severe respiratory distress and multiple-organ failure. Quick development of several vaccines efficiently controlled the spread of COVID-19. However, the rise of various new subvariants of COVID-19 demonstrated some concerns over the efficacy of existing vaccines. Currently, better vaccines to control these variants are still under development as several new subvariants of COVID-19, such as omicron BA-4, BA-5, and BF-7 are still impacting the world. Few antiviral treatments have been shown to control COVID-19 symptoms. Further, control of COVID-19 symptoms has been explored with many natural and synthetic adjuvant compounds in hopes of treating the deadly and contagious disease. Vitamins have been shown to modulate the immune system, function as antioxidants, and reduce the inflammatory response. Recent studies have investigated the potential role of vitamins, specifically vitamins A, B, C, D, and E, in reducing the immune and inflammatory responses and severity of the complication. In this brief article, we discussed our current understanding of the role of vitamins in controlling COVID-19 symptoms and their potential use as adjuvant therapy.


Subject(s)
COVID-19 , Vaccines , Humans , SARS-CoV-2 , Communicable Disease Control , Vitamins/therapeutic use , Vitamin A , Vitamin K , Dietary Supplements
18.
J Control Release ; 365: 369-383, 2024 Jan.
Article in English | MEDLINE | ID: mdl-37972764

ABSTRACT

Micro/Nano-scale particles are widely used as vaccine adjuvants to enhance immune response and improve antigen stability. While aluminum salt is one of the most common adjuvants approved for human use, its immunostimulatory capacity is suboptimal. In this study, we modified risedronate, an immunostimulant and anti-osteoporotic drug, to create zinc salt particle-based risedronate (Zn-RS), also termed particulate risedronate. Compared to soluble risedronate, micronanoparticled Zn-RS adjuvant demonstrated increased recruitment of innate cells, enhanced antigen uptake locally, and a similar antigen depot effect as aluminum salt. Furthermore, Zn-RS adjuvant directly and quickly stimulated immune cells, accelerated the formulation of germinal centers in lymph nodes, and facilitated the rapid production of antibodies. Importantly, Zn-RS adjuvant exhibited superior performance in both young and aged mice, effectively protecting against respiratory diseases such as SARS-CoV-2 challenge. Consequently, particulate risedronate showed great potential as an immune-enhancing vaccine adjuvant, particularly beneficial for vaccines targeting the susceptible elderly.


Subject(s)
Adjuvants, Vaccine , Vaccines , Animals , Mice , Humans , Aged , Risedronic Acid/therapeutic use , Aluminum , Adjuvants, Immunologic , Immunization , Antigens
19.
J Osteopath Med ; 124(4): 163-170, 2024 Apr 01.
Article in English | MEDLINE | ID: mdl-38011280

ABSTRACT

CONTEXT: Anecdotal evidence suggested that osteopathic manipulative treatment (OMT) may have imparted survivability to patients in osteopathic hospitals during the 1918 influenza pandemic. In addition, previous OMT research publications throughout the past century have shown evidence of increased lymphatic movement, resulting in improved immunologic function qualitatively and quantitatively. OBJECTIVES: The following is a description of a proposed protocol to evaluate OMT effects on antibody generation in the peripheral circulation in response to a vaccine and its possible use in the augmentation of various vaccines. This protocol will serve as a template for OMT vaccination studies, and by adhering to the gold standard of randomized controlled trials (RCTs), future studies utilizing this outline may contribute to the much-needed advancement of the scientific literature in this field. METHODS: This manuscript intends to describe a protocol that will demonstrate increased antibody titers to a vaccine through OMT utilized in previous historical studies. Confirmation data will follow this manuscript validating the protocol. Study participants will be divided into groups with and without OMT with lymphatic pumps. Each group will receive the corresponding vaccine and have antibody titers measured against the specific vaccine pathogen drawn at determined intervals. RESULTS: These results will be statistically evaluated. Our demonstration of a rational scientific OMT vaccine antibody augmentation will serve as the standard for such investigation that will be reported in the future. These vaccines could include COVID-19 mRNA, influenza, shingles, rabies, and various others. The antibody response to vaccines is the resulting conclusion of its administration. Osteopathic manipulative medicine (OMM) lymphatic pumps have, in the past through anecdotal reports and smaller pilot studies, shown effectiveness on peripheral immune augmentation to vaccines. CONCLUSIONS: This described protocol will be the template for more extensive scientific studies supporting osteopathic medicine's benefit on vaccine response. The initial vaccine studies will include the COVID-19 mRNA, influenza, shingles, and rabies vaccines.


Subject(s)
COVID-19 , Herpes Zoster , Influenza, Human , Manipulation, Osteopathic , Vaccines , Humans , Manipulation, Osteopathic/methods , Vaccination , Immunity , RNA, Messenger
20.
Adv Mater ; 36(13): e2302901, 2024 Mar.
Article in English | MEDLINE | ID: mdl-38113460

ABSTRACT

The rapid progress in the development of COVID-19 mRNA vaccines during the initial year of the pandemic has highlighted the significance of lipid nanoparticles in therapeutic delivery. Various lipid types have been investigated for the effective delivery of mRNA, each with unique functions and versatile applications. These range from their use in cancer immunotherapy and gene editing to their role in developing vaccines against infectious diseases. Nonetheless, continued exploration of novel lipids and synthetic approaches is necessary to further advance the understanding and expand the techniques for optimizing mRNA delivery. In this work, new lipids derived from FDA-approved soybean oil are facilely synthesized and these are employed for efficient mRNA delivery. EGFP and Fluc mRNA are used to evaluate the delivery efficacy of the lipid formulations both in vitro and in vivo. Furthermore, organ-specific targeting capabilities are observed in certain formulations, and their outstanding performance is demonstrated in delivering Cre mRNA for gene editing. These results showcase the potential of soybean oil-derived lipids in mRNA delivery, offering utility across a broad spectrum of bioapplications.


Subject(s)
Nanoparticles , Vaccines , RNA, Messenger/genetics , Soybean Oil , Gene Editing/methods
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