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1.
Sci Total Environ ; 924: 171644, 2024 May 10.
Artigo em Inglês | MEDLINE | ID: mdl-38471587

RESUMO

Harmful algal blooms (HABs) are causing significant disruptions in freshwater ecosystems, primarily due to the proliferation of cyanobacteria. These blooms have a widespread impact on various lakes globally, leading to profound environmental and health consequences. Cyanobacteria, with their ability to produce diverse toxins, pose a particular concern as they negatively affect the well-being of humans and animals, exacerbating the situation. Notably, cyanobacteria utilize quorum sensing (QS) as a complex communication mechanism that facilitates coordinated growth and toxin production. QS plays a critical role in regulating the dynamics of HABs. However, recent advances in control and mitigation strategies have shown promising results in effectively managing and reducing the occurrence of HABs. This comprehensive review explores the intricate aspects of cyanobacteria development in freshwater ecosystems, explicitly focusing on deciphering the signaling molecules associated with QS and their corresponding genes. Furthermore, a concise overview of diverse measures implemented to efficiently control and mitigate the spread of these bacteria will be provided, shedding light on the ongoing global efforts to address this urgent environmental issue. By deepening our understanding of the mechanisms driving cyanobacteria growth and developing targeted control strategies, we hope to safeguard freshwater ecosystems and protect the health of humans and animals from the detrimental impacts of HABs.


Assuntos
Cianobactérias , Proliferação Nociva de Algas , Percepção de Quorum , Animais , Humanos , Cianobactérias/genética , Ecossistema , Lagos/microbiologia , Percepção de Quorum/genética , Transativadores
2.
Virusdisease ; 33(3): 322-333, 2022 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-36277412

RESUMO

Papillomaviruses are viruses with double-stranded DNA that are epitheliotropic and non-enveloped that infects cutaneous epithelial and mucosal cells in a species-specific way in several higher vertebrate species and cause cellular growth."There are around 100 different human papillomaviruses (HPVs)", as "more than 150 HPV types have been isolated and fully sequenced". We classify the probability of cancer development following viral infection with each HPV genotype into two types: "low-risk" and "high-risk." As a result, HPV diagnosis is a critical component of HPV genotype identification and characterization. Based on its activities, we may classify the HPV genome into three regions: the long control region (LCR) or the non-coding upstream regulatory region (URR), the late (L) region, and the early (E) region. Functional proteins are mostly static things that are not inflexible; they have undergone both local and global movements at various times and time ranges. The structural differences between HPV16 and 18 discovered by molecular modeling of the E6 oncoprotein were associated with their carcinogenic characteristics. Similarly, the E6 protein has two sets of C-X-X-C motifs that play significant roles in transformation, transcriptional activation, interactions, and immortalization with other proteins of cells in the host environment. Here, we review the literature regarding the protein mechanisms associated with HPV and how they cause cancer. Unless otherwise noted, it described all protein activities in terms of HPV proteins. The term "papillomaviruses" refers to groups of papillomavirus proteins that have a characteristic in common. HPV proteins can study the genetic influences on pathogenicity and the therapeutic applications of genomics. The future study provides a potential advancement in HPV infections and malignant illnesses to improve preventive and treatment strategies. Patients have been able to conquer this condition using a range of therapies and vaccines that were projected to be effective and robust enough to put an end to the ailment completely. In cancer prevention strategies, HPV vaccination is one of the most effective. It is safe, efficient, and long-lasting.

3.
Ann Indian Acad Neurol ; 25(3): 383-388, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35936591

RESUMO

Perimenopause is linked to increased migraine (Mg), especially menstrual Mg (MMg), influenced by hormonal changes. Compared to nonmenstrual attacks, menstrual attacks are more disabling and less responsive to treatment. Women with perimenstrual estrogen withdrawal have been linked to Mg during menstruation, whereas Mg during perimenopause has been linked to unpredictable fluctuations in estrogen levels. It has been widely established that female sex hormones play a role in Mg, but how it occurs remains unclear. This narrative review was identified using Medline and PubMed searches between 1946 and 2021. Search terms included "headache," "migraine," "menstrual migraine," "menstruation," "menopause," "perimenopause," "estrogen," and "progesterone." This article focuses on the candidate genes and female hormones that play a role in MMg. More study is necessary to understand better the environmental components that play a critical role in disease development. Currently, there is insufficient clinical evidence to support the function of menstrual Mg. The specific research facts examined MMg unique candidate genes and female hormonal factors that support their association and found MMg etiologic processes for generating an early diagnostic marker.

4.
Egypt Heart J ; 74(1): 5, 2022 Jan 21.
Artigo em Inglês | MEDLINE | ID: mdl-35061126

RESUMO

Heart failure (HF) is a clinical condition distinguished by structural and functional defects in the myocardium, which genetic and environmental factors can induce. HF is caused by various genetic factors that are both heterogeneous and complex. The incidence of HF varies depending on the definition and area, but it is calculated to be between 1 and 2% in developed countries. There are several factors associated with the progression of HF, ranging from coronary artery disease to hypertension, of which observed the most common genetic cause to be cardiomyopathy. The main objective of this study is to investigate heart failure and its association with cardiomyopathy with their genetic variants. The selected novel genes that have been linked to human inherited cardiomyopathy play a critical role in the pathogenesis and progression of HF. Research sources collected from the human gene mutation and several databases revealed that numerous genes are linked to cardiomyopathy and thus explained the hereditary influence of such a condition. Our findings support the understanding of the genetics aspect of HF and will provide more accurate evidence of the role of changing disease accuracy. Furthermore, a better knowledge of the molecular pathophysiology of genetically caused HF could contribute to the emergence of personalized therapeutics in future.

5.
Bull Natl Res Cent ; 45(1): 79, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33907373

RESUMO

BACKGROUND: The ongoing pandemic of COVID-19 viruses takes its sole origin from the Wuhan Huanan seafood market, China. The first case was recorded as viral pneumonia and later became a worldwide pandemic (officially declared by WHO on March 11, 2020). MAIN BODY: SARS-CoV-2 is an extremely infectious and transferrable virus that develops severe conditions like respiratory syndrome, high blood pressure and weakens the immune system. Coronavirus falls under the Coronaviridae family and Beta coronavirus genus. Affected individuals will encounter problems starting with fever followed by severe complications like SARS, ARDS, and many others. These SARS-CoV and MERS-CoV enter the host cells by the endosomal pathway, and about 16 non-structural proteins are involved in assembling the viral RNA synthesis complex. They possess a positive-sense single-stranded RNA, and about four major genes are mainly associated with the development of ASRD, SARS, and other respiratory problems. CONCLUSION: Susceptibility of these four major genes such as ACE2, IL-2, 7 and 10, TNF, and VEGF is associated with COVID-19. This highlights the identification of the above-mentioned genes that can be used as potential biomarkers for early diagnosis and targeted drug delivery for treating the SARS-CoV-2 neurological symptoms and reducing inflammation in the brain.

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