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1.
Cureus ; 15(10): e47984, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-38034236

RESUMO

The outbreak of COVID-19 was seen first in Wuhan, China, on December 31, 2019. Following this, the virus has emerged, mutated, and spread to all parts of the world, taking many lives. Scientists and healthcare workers all over the world have been involved in developing vaccines and drugs to prevent the deadly virus from spreading. In this review article, we focus on how the human body responds to immune responses by producing antibodies against our immune system and serum levels in different age groups. Few studies are being considered, which include data collected from adults in the UK community, health workers from Oxfordshire, studies from the UK, healthcare workers at a university healthcare center in Turkey, and lastly, non-seropositive and seronegative healthcare workers in the USA children's hospital, respectively, and their responses to the goal. In addition to focusing on this study and its results, we also discuss the role of different vaccines and their development and antibody responses in the body due to natural and post-vaccine infections that include both doses in humans. We focus mainly on immunoglobulin M (IgM) and immunoglobulin G (IgG) levels in the serum produced by plasma cells, as they are involved in the first line of defense against the disease. With the development of effective vaccines and their production, trial, and market distribution to needy people, there are certain prospects for slowing down the progression of the virus, reducing mortality, and preventing re-infection in humans. However impactful and beneficial these vaccines have proven, they also carry a certain amount of danger to the people taking them. We also discuss in this article certain infrequent hematological and cardiovascular complications of the vaccine and their effect on the population.

2.
Cureus ; 14(10): e30098, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-36381881

RESUMO

Otomycosis is a disease whose acute form affects four in 1,000 persons annually and the chronic form affects 3-5% of the population. It is brought on by various fungi, primarily saprophytes which most commonly include the Candida albicans and Aspergillus niger. The disease rarely poses a life-threatening danger, but as it requires prolonged treatment and follow-up and has a significant chance of recurrence, it has a difficult and taxing course. Numerous therapeutic modalities are available for the treatment of otomycosis. In the beginning, the fungal elements are removed by ear toilet - washing or suctioning of the ear canal followed by drying. Topical therapy includes the use of antifungals, of which the most commonly used drugs include clotrimazole or miconazole, often given along with ceftazidime which is an antibacterial. The primary mechanism by which clotrimazole works is by impairing the permeability barrier of the cytoplasmic membrane of the fungi, which causes holes to appear in the cell membrane and leaking out of the contents of the organism, thus killing the fungus and treating the infection. Various studies suggest that following clotrimazole drop therapy, symptoms suggestive of otomycosis are not at risk for recurrence of the disease and due to its economical pricing and easy availability, is frequently recommended by otolaryngologists in the treatment of otomycosis. In this review article, we will discuss about the effectiveness of the drug in different populations, observe treatment failures and relapse of the disease, analyze the ability of clotrimazole drops in preventing relapse of the infection, and observe the role of the drug in reducing the signs and symptoms of the disease.

3.
Toxins (Basel) ; 8(2): 40, 2016 Feb 05.
Artigo em Inglês | MEDLINE | ID: mdl-26861395

RESUMO

Ochratoxins, and particularly ochratoxin A (OTA), are toxic fungal-derived contaminants of food and other agricultural products. Growing evidence supports the degradation of OTA by chemical, enzymatic and/or microbial means as a potential approach to remove this mycotoxin from food products. In particular, hydrolysis of OTA to ochratoxin α (OTα) and phenylalanine is the presumptive product of degradation in most cases. In the current study, we employed the zebrafish (Danio rerio) embryo, as a model of vertebrate development to evaluate, the teratogenicity of OTA and OTα. These studies show that OTA is potently active in the zebrafish embryo toxicity assay (ZETA), and that toxicity is both concentration- and time-dependent with discernible and quantifiable developmental toxicity observed at nanomolar concentrations. On the other hand, OTα had no significant effect on embryo development at all concentrations tested supporting a decreased toxicity of this degradation product. Taken together, these results suggest that ZETA is a useful, and highly sensitive, tool for evaluating OTA toxicity, as well as its degradation products, toward development of effective detoxification strategies. Specifically, the results obtained with ZETA, in the present study, further demonstrate the toxicity of OTA, and support its degradation via hydrolysis to OTα as an effective means of detoxification.


Assuntos
Desenvolvimento Embrionário/efeitos dos fármacos , Ocratoxinas/toxicidade , Teratogênicos/toxicidade , Animais , Embrião não Mamífero , Peixe-Zebra
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