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1.
World Neurosurg ; 2024 Sep 05.
Artigo em Inglês | MEDLINE | ID: mdl-39243969

RESUMO

BACKGROUND: Over the past 15 years, World Neurosurgery (WN) has emerged as a pivotal source in the neurosurgery field, reflecting remarkable growth and development. Originally published as Surgical Neurology from 1973 to 2009, the journal transitioned to its current title in 2010, significantly expanding its reach and influence. METHODS: A comprehensive bibliometric analysis of WN's publications from 1973 to 2023 was performed. The analysis focused on identifying the top authors, universities, countries, and sponsors in two periods: 1973-2009 and 2010-2023. Additionally, the study included a detailed examination of the top 1,000 most cited papers, and summary of top 10 most cited papers. RESULTS: The analysis revealed that during the Surgical Neurology period, 6,567 research documents were published, including 6,503 articles and 64 reviews. Since rebranding as World Neurosurgery, the journal has published an additional 17,663 documents, comprising 15,366 articles and 2,297 reviews up to 2023. The top contributors (authors, universities, and sponsors) were identified, and the study found that WN has successfully increased its foothold across various continents. The co-word analysis provided insights into the thematic focus of the top 1,000 most cited papers, categorizing them into 15 distinct areas. CONCLUSION: This study underscores World Neurosurgery's significant role in advancing neurosurgical research over the past five decades. The findings highlight the journal's evolution, its expanding global influence, and the key contributors to its success.

2.
Heliyon ; 10(16): e36137, 2024 Aug 30.
Artigo em Inglês | MEDLINE | ID: mdl-39224297

RESUMO

Background: Research on Coffea arabica focuses on various aspects, including genetics, breeding, climate change resilience, pest and disease management, agronomy, sensory analysis, and sustainability. This study aims to analyze the hotspots, conceptual map and dynamicity, global landscape, and emerging trends in Coffea arabica research (CA-R). Methods: A comprehensive dataset comprising data-driven articles (N = 3967) from 1932 to 2023 was extracted from Scopus using predefined search terms. VOSviewer and Bibliometrix applications were utilized to analyze the data. Thematic evolution was examined by identifying shifts in research focus over time. The global landscape was assessed by examining comparative productivity and collaborative dynamics. Highly-cited CA-R was identified to highlight key findings in specific research areas. Results: The analysis revealed a steady growth of CA-R (annual growth rate = 6.53 %), with strong international collaboration (international co-authorships = 29.35 %) and significant contributions from various countries. Brazil leads the way with 1601 publications, accounting for 28.55 % of the total. Recognizable CA-R focused on important areas such as pollination, shade management, nanotechnology applications, roasting effects, disease management, and environmental impacts. Thematic analysis identified five distinct clusters representing different CA-R themes: "coffee", "coffea," "fermentation," "Coffea arabica," and "climate change." Emerging themes such as "in vitro culture," "sustainable agriculture," "climate change," and "coffee berry borer" were also identified. Conclusion: The current findings enhance our understanding of CA-R and lay the groundwork for future studies in the coffee industry.

3.
World Neurosurg ; 189: e977-e992, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-38996964

RESUMO

OBJECTIVE: The aim of the present study was to analyze the trends of neurosurgical research in low and lower middle-income countries (LLMICs). METHODS: The data was retrieved from Scopus database and 82 neurosurgical journals were analyzed. RESULTS: Initially the global research scholarly output (n = 195,658) was explored and later papers originating solely from LLMICs, without international collaboration with advance countries (n = 8408) were analyzed. The per decade number of publications (from 1920 to May 2024), top ten authors, universities, countries and sources of all (global) countries, and 98 LLMICs is provided. Eighty countries have published less than 50 papers. Even more striking, 68, 55, 38, and 36 LLMICs countries have produced less than 20, 10, 5, and 3 papers, respectively. The keywords analysis was performed to present the main focus of 8408 publications. The top 1000 most cited documents were also identified, and later relevant scientometrics details were provided. The top countries dynamic and most prolific authors (on the basis of number of publications, total citations, h-index, g-index, and m-index) in the top 1000 cited documents (from LLMICs) are highlighted. CONCLUSIONS: The findings suggest that neurosurgical research in LLMICs is low, which could be attributed to several factors including limited funding, inadequate infrastructure, and insufficient training opportunities.


Assuntos
Pesquisa Biomédica , Países em Desenvolvimento , Neurocirurgia , Neurocirurgia/tendências , Humanos , Pesquisa Biomédica/tendências , Bibliometria , História do Século XX
4.
Antibiotics (Basel) ; 12(7)2023 Jul 07.
Artigo em Inglês | MEDLINE | ID: mdl-37508253

RESUMO

Broccoli, Brassica oleracea var. italica, has recently gained considerable attention due to its remarkable nutritional composition and numerous health benefits. In this review, the nutritional aspects of broccoli are examined, highlighting its rich nutrient content and essential bioactive compounds. The cruciferous vegetable broccoli is a rich source of several important nutrients, including fiber, vitamins (A, C, and K), minerals (calcium, potassium, and iron), and antioxidants. It has also been shown to contain bioactive compounds such as glucosinolates, sulforaphane, and indole-3-carbinol, all of which have been shown to have significant health-promoting effects. These chemicals are known to have potent antioxidant, anti-inflammatory, and anticancer effects. This review article aims to comprehensively examine the diverse spectrum of nutrients contained in broccoli and explore its medicinal potential to promote human health.

5.
Antioxidants (Basel) ; 12(3)2023 Mar 04.
Artigo em Inglês | MEDLINE | ID: mdl-36978892

RESUMO

Cypermethrin (CPM) is the most toxic synthetic pyrethroid that has established neurotoxicity through oxidative stress and neurochemical agitation in experimental rats. The toxic effects are supposed to be mediated by modifying the sodium channels, reducing Na-K ATPase, acetylcholine esterase (AchE), and monoamine oxidase (MAO). The use of curcumin nanoparticles (NC) that have potent antioxidant, anti-inflammatory and antiapoptotic properties with improved bioavailability attenuates neurotoxicity in rat brains. To test this hypothesis, animals were divided into five groups, each having six animals. Group-I control received vehicle only, while Group-II was treated with 50 mg/kg CPM. Group-III and Group-IV received both CPM and NC 2.5 mg/kg and 5 mg/kg, respectively. Group-V received 5 mg of NC alone. The CPM and NC were given by oral route. Afterwards, brain antioxidant status was measured by assessing lipid peroxidation (LPO), 4-HNE, glutathione reduced (GSH), antioxidant enzyme catalase, and superoxide dismutase (SOD) along with neurotoxicity markers Na-K ATPase, AchE, and MAO. Inflammation and apoptosis indices were estimated by ELISA, qRT-PCR, and immunohistochemistry, while morphologic changes were examined by histopathology. Observations from the study confirmed CPM-induced neurotoxicity by altering Na-K ATPase, AchE, and MAO, and by decreasing the activity of antioxidant enzymes and GSH. Oxidative stress marker LPO and the level of inflammatory interleukins IL-6, IL-1ß, and TNF-α were notably high, and elevated expressions of Bax, NF-kB, and caspase-3 and -9 were reported in CPM group. However, NC treatment against CPM offers protection by improving antioxidant status and lowering LPO, inflammation, and apoptosis. The neurotoxicity marker's enzyme successfully attenuated after NC treatment. Therefore, this study supports the administration of NC effectively ameliorated CPM-induced neurotoxicity in experimental rats.

6.
Molecules ; 25(21)2020 Oct 22.
Artigo em Inglês | MEDLINE | ID: mdl-33105694

RESUMO

Viral infections and associated diseases are responsible for a substantial number of mortality and public health problems around the world. Each year, infectious diseases kill 3.5 million people worldwide. The current pandemic caused by COVID-19 has become the greatest health hazard to people in their lifetime. There are many antiviral drugs and vaccines available against viruses, but they have many disadvantages, too. There are numerous side effects for conventional drugs, and active mutation also creates drug resistance against various viruses. This has led scientists to search herbs as a source for the discovery of more efficient new antivirals. According to the World Health Organization (WHO), 65% of the world population is in the practice of using plants and herbs as part of treatment modality. Additionally, plants have an advantage in drug discovery based on their long-term use by humans, and a reduced toxicity and abundance of bioactive compounds can be expected as a result. In this review, we have highlighted the important viruses, their drug targets, and their replication cycle. We provide in-depth and insightful information about the most favorable plant extracts and their derived phytochemicals against viral targets. Our major conclusion is that plant extracts and their isolated pure compounds are essential sources for the current viral infections and useful for future challenges.


Assuntos
Antivirais/uso terapêutico , Infecções por Coronavirus/tratamento farmacológico , Infecções por HIV/tratamento farmacológico , Hepatite C Crônica/tratamento farmacológico , Herpes Simples/tratamento farmacológico , Influenza Humana/tratamento farmacológico , Compostos Fitoquímicos/uso terapêutico , Pneumonia Viral/tratamento farmacológico , Antivirais/química , Antivirais/classificação , Antivirais/isolamento & purificação , Betacoronavirus/efeitos dos fármacos , Betacoronavirus/patogenicidade , Betacoronavirus/fisiologia , COVID-19 , Infecções por Coronavirus/patologia , Infecções por Coronavirus/virologia , Descoberta de Drogas , HIV/efeitos dos fármacos , HIV/patogenicidade , HIV/fisiologia , Infecções por HIV/patologia , Infecções por HIV/virologia , Hepacivirus/efeitos dos fármacos , Hepacivirus/patogenicidade , Hepacivirus/fisiologia , Hepatite C Crônica/patologia , Hepatite C Crônica/virologia , Herpes Simples/patologia , Herpes Simples/virologia , Humanos , Influenza Humana/patologia , Influenza Humana/virologia , Orthomyxoviridae/efeitos dos fármacos , Orthomyxoviridae/patogenicidade , Orthomyxoviridae/fisiologia , Pandemias , Compostos Fitoquímicos/química , Compostos Fitoquímicos/classificação , Compostos Fitoquímicos/isolamento & purificação , Plantas Medicinais , Pneumonia Viral/patologia , Pneumonia Viral/virologia , SARS-CoV-2 , Simplexvirus/efeitos dos fármacos , Simplexvirus/patogenicidade , Simplexvirus/fisiologia , Internalização do Vírus/efeitos dos fármacos , Replicação Viral/efeitos dos fármacos
7.
Pharmacogn Mag ; 13(Suppl 2): S354-S358, 2017 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-28808405

RESUMO

BACKGROUND: Catha edulis Forsk. (Khat) is traditionally used for treating various disorders. Nevertheless there are no reports of any scientific assessment of its psychopharmacological properties. OBJECTIVE: Therefore, the current study was designed to evaluate the antidepressant-like activity of Khat ethanolic extract using established animal models of depression and stress. MATERIALS AND METHODS: Ninety healthy male albino mice were used in this study. Forced swim, tail suspension and head poking tests were utilized to evaluate the antidepressant-like activity of the ethanolic extract of Khat (100, 200 and 400 mg/kg, i.p.) and escitalopram (standard drug) which were administered 30 min prior to the tests. Phytochemical analysis of the standardized extract was conducted using liquid chromatography-mass spectroscopy (LC-MS). RESULTS: A significant decrease in the head-dipping behavior was noticed after administration of 100, 200 and 400 mg/kg of Khat extract. Moreover, the extract significantly decreased the immobility time in tail suspension and forced swim tests. The presence of cathinone and cathine were detected in the extract using LC-MS. CONCLUSION: The current results suggest that the extract of Khat leaves has acute antidepressant properties and may have sedative effects. SUMMARY: Antidepressant-like activity of Khat established in vivoThe extract decreased the immobility time in tail suspension and forced swim testsLiquid chromatography-mass spectroscopy data revealed the presence of cathinone and cathine in Khat extract. Abbreviations used: LC-MS: Liquid chromatography-mass spectroscopy; NIST: National institute of standard technology; SSRI: Serotonin reuptake inhibitors; FST: Forced swim test; TST: Tail suspension test.

8.
Artigo em Inglês | MEDLINE | ID: mdl-22685485

RESUMO

Emerging evidence suggests that reactive oxygen (ROS) and nitrogen (RNS) species can contribute to diverse signalling pathways of inflammatory and tumour cells. Cucurbitacins are a group of highly oxygenated triterpenes. Many plants used in folk medicine to treat cancer have been found to contain cucurbitacins displaying potentially important anti-inflammatory actions. The current study was designed to investigate the anti-ROS and -RNS effects of cucurbitacin L 2-O-ß-glucoside (CLG) and the role of these signaling factors in the apoptogenic effects of CLG on human colon cancer cells (HT-29). This natural cucurbitacin was isolated purely from Citrullus lanatus var. citroides (Cucurbitaceae). The results revealed that CLG was cytotoxic to HT-29. CLG increased significantly (P < 0.05) RNA and protein levels of caspase-3 in HT-29 cells when verified using a colorimetric assay and realtime qPCR, respectively. The results showed that lipopolysaccharide/interferon-gamma (LPS/INF-γ) increased nitrous oxide (NO) production inR AW264.7macrophages, whereas N(G)-nitro-L-argininemethyl ester (L-NAME) and CLG curtailed it. This compound did not reveal any cytotoxicity on RAW264.7 macrophages and human normal liver cells (WRL-68) when tested using the MTT assay. Findings of ferric reducing antioxidant power (FRAP) and oxygen radical absorption capacity (ORAC) assays demonstrate the antioxidant properties of CLG. The apoptogenic property of CLG on HT-29 cells is thus related to inhibition of reactive nitrogen and oxygen reactive species and the triggering of caspase-3-regulated apoptosis.

9.
J Ethnopharmacol ; 131(3): 592-600, 2010 Oct 05.
Artigo em Inglês | MEDLINE | ID: mdl-20673794

RESUMO

ETHNOPHARMACOLOGICAL RELEVANCE: The plant Typhonium flagelliforme (TF), commonly known as 'rodent tuber' in Malaysia, is often used as traditional remedy for cancer, including leukemia. AIM OF THE STUDY: We had previously identified morphologically that the linoleic acid rich fraction (DCM/F7) from the tubers of this plant induces selective anti-proliferative effects and apoptosis in CEMss cells. In this present study, we subjected the same DCM/F7 fraction to cell based activity analyses in order to determine the possible mechanism of cell death in leukemic CEMss cells in vitro. MATERIALS AND METHODS: Extraction of Typhonium flagelliforme tuber has done and fractionation has been done by vacuum liquid column chromatography. The anti-proliferative activity was assayed using MTT and the apoptosis detection was done by Annexin V and DNA laddering assay. Colorimetric caspase assay and immunoblot analysis were employed to detect the expression of protein associated with cell death. Cell cycle analysis was done using flow cytometry. RESULTS: We found that the cancer inhibitory effect of the DCM/F7 fraction in CEMss cells was 3 ± 0.08 µg/ml (IC(50)). An early apoptotic induction in CEMss cells was observed by Annexin V assay, which showed a clear dose-dependent DNA fragmentation being observed in gel electrophoresis at 10 and 20 µg/ml. The DCM/F7 fraction at 3 µg/ml significantly arrested CEMss cells at G0/G1 phase (p<0.05). A constant but increasing pattern-related Sub-G0/G1 index was observed between 12 and 72 h treatment. In relation to this, we further investigated the biochemical events leading to cell death and found that the DCM/F7 fraction increased the cellular levels of caspase-3 and -9 on treated cells. Our results indicated that cytochrome c from mitochondria into the cytosol increased gradually as the DCM/F7 concentration increases, which later lead to the subsequent cleavage of PARP in to 85kDa fragments. On the contrary, Bcl-2 protein was found to decrease concomitantly during treatment. CONCLUSIONS: Collectively, results presented in this study demonstrated that the DCM/F7 fraction inhibited the proliferation of leukemia cells, leading to the programmed cell death, which was confirmed to be through the mitochondrial pathway.


Assuntos
Apoptose/efeitos dos fármacos , Araceae/química , Leucemia/tratamento farmacológico , Extratos Vegetais/farmacologia , Antineoplásicos Fitogênicos/administração & dosagem , Antineoplásicos Fitogênicos/farmacologia , Caspase 9/efeitos dos fármacos , Caspase 9/metabolismo , Ciclo Celular/efeitos dos fármacos , Linhagem Celular Tumoral , Proliferação de Células/efeitos dos fármacos , Citocromos c/efeitos dos fármacos , Citocromos c/metabolismo , Relação Dose-Resposta a Droga , Eletroforese em Gel de Ágar , Citometria de Fluxo , Humanos , Concentração Inibidora 50 , Leucemia/patologia , Malásia , Medicina Tradicional , Mitocôndrias/efeitos dos fármacos , Mitocôndrias/metabolismo , Extratos Vegetais/administração & dosagem , Poli(ADP-Ribose) Polimerases/efeitos dos fármacos , Poli(ADP-Ribose) Polimerases/metabolismo
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