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1.
Cureus ; 15(9): e45228, 2023 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-37842399

RESUMO

The clinical presentation and diagnosis of Tejocote root toxicity causing Mobitz Type 1 remains a scarcely clinical phenomenon, often resulting in delayed diagnosis and treatment. This case report highlights a 30-year-old female presenting with a constellation of symptoms, including fatigue, dizziness, chest pressure, myalgias, nausea, vomiting, and peripheral tingling. Significantly, the patient had been using Tejocote root as an over-the-counter laxative acquired from Mexico. Laboratory findings revealed detectable Digoxin levels in her bloodstream, while an electrocardiogram (EKG) indicated sinus bradycardia with Mobitz Type 1 heart block. The patient was treated with a single dose of atropine 0.5 mg IV push. A repeat EKG before discharge showed resolution of the Mobitz type 1. This case underscores the potential cardiovascular repercussions of Tejocote root consumption and emphasizes the importance of heightened clinical awareness, especially in regions where such herbal supplement usage is prevalent.

2.
Sci Rep ; 13(1): 13034, 2023 08 10.
Artigo em Inglês | MEDLINE | ID: mdl-37563154

RESUMO

Agri-food wastes, produced following industrial food processing, are mostly discarded, leading to environmental hazards and losing the nutritional and medicinal values associated with their bioactive constituents. In this study, we performed a comprehensive analytical and biological evaluation of selected vegetable by-products (potato, onion, and garlic peels). The phytochemical analysis included UHPLC-ESI-qTOF-MS/MS in combination with molecular networking and determination of the total flavonoid and phenolic contents. Further, the antimicrobial, anti-osteoarthritis and wound healing potentials were also evaluated. In total, 47 compounds were identified, belonging to phenolic acids, flavonoids, saponins, and alkaloids as representative chemical classes. Onion peel extract (OPE) showed the higher polyphenolic contents, the promising antioxidant activity, the potential anti-osteoarthritis activity, and promising antimicrobial activity, especially against methicillin-resistant Staphylococcus aureus (MRSA). Furthermore, OPE revealed to have promising in vivo wound healing activity, restoring tissue physiology and integrity, mainly through the activation of AP-1 signaling pathway. Lastly, when OPE was loaded with nanocapsule based hydrogel, the nano-formulation revealed enhanced cellular viability. The affinities of the OPE major metabolites were evaluated against both p65 and ATF-2 targets using two different molecular docking processes revealing quercetin-3,4'-O-diglucoside, alliospiroside C, and alliospiroside D as the most promising entities with superior binding scores. These results demonstrate that vegetable by-products, particularly, those derived from onion peels can be incorporated as natural by-product for future evaluation against wounds and osteoarthritis.


Assuntos
Anti-Infecciosos , Staphylococcus aureus Resistente à Meticilina , Antioxidantes/farmacologia , Antioxidantes/análise , Verduras , Extratos Vegetais/farmacologia , Extratos Vegetais/química , Simulação de Acoplamento Molecular , Espectrometria de Massas em Tandem , Antibacterianos/farmacologia , Antibacterianos/análise , Cicatrização , Flavonoides/análise , Anti-Infecciosos/análise , Compostos Fitoquímicos/farmacologia , Compostos Fitoquímicos/análise , Cebolas/química
3.
Molecules ; 28(1)2023 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-36615550

RESUMO

Red onion wastes (ROW) are valuable sources of bioactive metabolites with promising antimicrobial effects. Methicillin-resistant Staphylococcus aureus (MRSA) infections are a growing risk in hospitals and communities. This study aims to investigate the in vitro and in vivo antibiofilm activities of the acidified ethanolic extract of red onion scales (RO-T) and its fractions against an MRSA vaginal colonization model. The RO-T extract, as well as its anthocyanin-rich fraction (RO-P) and flavonoid-rich fraction (RO-S), recorded a promising antibacterial activity against highly virulent strains of bacteria (MRSA, Acinetobacter baumannii, Escherichia coli and Pseudomonas aeruginosa). RO-S showed the highest antibacterial activity (MBC of 0.33 ± 0.11 mg/mL) against MRSA USA300 and significantly eradicated its biofilm formation with an IC50 of 0.003. Using a rat model, in vivo assessment on all samples, which were formulated as a hydrogel, revealed a significant reduction of MRSA bacterial load recovered from an infected vagina compared to that of the negative control group (NCG). RO-T extract and vancomycin groups recorded the highest antibacterial activity with a bacterial load 2.998 and 3.358 logs lower than the NCG, respectively. The histopathological investigation confirmed our findings. RO-T and RO-S were standardized for their quercetin content. Finally, ROW offers a new potent antibiofilm agent mostly due to its high quercetin content.


Assuntos
Staphylococcus aureus Resistente à Meticilina , Eliminação de Resíduos , Feminino , Ratos , Animais , Cebolas , Alimentos , Quercetina/farmacologia , Testes de Sensibilidade Microbiana , Antibacterianos/farmacologia , Escherichia coli , Biofilmes
4.
Molecules ; 27(19)2022 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-36235006

RESUMO

Interest in plant-based diets has been on the rise in recent years owing to the potential health benefits of their individual components and the notion that plant-based diets might reduce the incidence of several diseases. Egyptian dukkah and Syrian za'atar are two of the most historic and famous Middle Eastern herbal blends used for their anti-inflammatory, hypolipidemic, and antidiabetic effects. Headspace SPME-GCMS and HPLC-DAD were adopted for characterizing the aroma profile and phenolic compounds of both herbal blends, respectively. Further, vapor-phase minimum inhibitory concentration was employed for assessing each blend's antibacterial potential, while their antioxidant potential was estimated via in vitro antioxidant assays. SPME headspace analysis indicated the abundance of ethers and monoterpene hydrocarbons, while HPLC revealed the presence of several phenolics including rosmarinic acid, ferulic acid, and rutin. Biological investigations affirmed that vapor-phase of the tested blends exhibited antibacterial activities against Gram-positive and Gram-negative pathogens, while the antioxidant potential of the blends was investigated and expressed as Trolox (125.15 ± 5.92 to 337.26 ± 13.84 µM T eq/mg) and EDTA (18.08 ± 1.62 to 51.69 41 ± 5.33 µM EDTA eq/mg) equivalent. The presented study offers the first insight into the chemical profile and biological activities of both dukkah and za'atar.


Assuntos
Anti-Infecciosos , Antioxidantes , Antibacterianos/análise , Antibacterianos/farmacologia , Anti-Infecciosos/farmacologia , Antioxidantes/química , Cromatografia Líquida de Alta Pressão , Ácido Edético , Éteres , Cromatografia Gasosa-Espectrometria de Massas , Hipoglicemiantes/análise , Monoterpenos/análise , Fenóis/química , Extratos Vegetais/química , Rutina/análise , Microextração em Fase Sólida
5.
Food Funct ; 12(7): 3170-3179, 2021 Apr 07.
Artigo em Inglês | MEDLINE | ID: mdl-33734250

RESUMO

Morinda citrifolia L. is a plant of the family Rubiaceae and is known as Indian mulberry or Noni in India. It is a perennial herb native to Southeast Asia and has been used over the years as a food supplement and medicinal plant. Noni fruits are reported to possess anticancer, fungicidal, antiviral and antiarthritic effects. The objective of our study is the screening of the immunomodulatory activity of the total extract, fractions, and isolated compounds of Noni fruits to identify their bioactive compounds. To achieve our goal, an ethanol extract (EE) was prepared from Noni fruits. Fractionation and purification of the EE were accomplished. The cell-mediated immune (CMI) response in prednisolone-induced immunosuppression rats was evaluated. The toxicity of the EE, fractions and isolated compounds on the differentiated THP-1 macrophage was assessed using the MTT viability assay. Moreover, the inflammation-related immune responses in lipopolysaccharide (LPS)-induced THP-1 macrophage activation were evaluated. Fractionation of the EE gave three fractions, dichloromethane (DCMF), water (WF) and methanol (MF). Purification of DCMF yielded stigmast-7-ene-3-ol (M1), 28-hydroxy-3ß-acetoxy-9-dehydrogramisterol (M2), 3ß-acetoxy-taraxast-20(30)-ene-21-ol (M3), 22-dehydroclerosterol (M4) and 22-dehydroclerosterol-3-O-ß-d-glucopyranoside (M5), while purification of MF yielded quercetin (M6), hesperidin (M7), naringin (M9) and gallic acid (M8). The results revealed that DCMF elicited an increase in paw edema to the extent of 35.8%. All the tested samples had no cytotoxic effect on THP-1 macrophages. Co-treatment of the LPS-induced macrophages with DCMF, M2, M3, and M6 decreased the production of TNF-α, IL-1ß, and IL-6/IL-10. The expression of iNOS, COX-2, and NF-κB decreased to 0.14 ± 0.02, 0.15 ± 0.02, and 0.17 ± 0.03, respectively, after co-treatment with LPS and DCMF. M2 attenuated the expression of iNOS and NF-κB to 0.18 ± 0.03 and 0.17 ± 0.03, respectively. Additionally, M3 attenuated the expression of iNOS to 0.18 ± 0.03, and after co-treatment with M6 and LPS, the expression of COX-2 and NF-κB was down-regulated to 0.2 ± 0.03. Our study proves the immunomodulatory effect of Noni fruits and specifies for the first time the compounds responsible for their activity.


Assuntos
Frutas , Fatores Imunológicos/farmacologia , Morinda , Extratos Vegetais/farmacologia , Animais , Modelos Animais de Doenças , Terapia de Imunossupressão , Inflamação/induzido quimicamente , Inflamação/prevenção & controle , Lipopolissacarídeos , Macrófagos/efeitos dos fármacos , Masculino , Camundongos Endogâmicos BALB C , Prednisolona , Ratos
6.
Infect Drug Resist ; 14: 33-48, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33442274

RESUMO

INTRODUCTION: Star anise fruits (Illicium verum Hook.) have been used as an important treatment in traditional Chinese medicine. The previous studies reported the activity of the non-polar fractions as potential sources of antibacterial metabolites, and little was done concerning the polar fractions of star anise. METHODS: The antibacterial activity of the star anise aqueous methanolic (50%) extract against multidrug-resistant Acinetobacter baumannii AB5057 and methicillin-resistant Staphylococcus aureus (MRSA USA300) was investigated in vitro (disc diffusion assay, minimum bactericidal concentration determination, anti-biofilm activity and biofilm detachment activity). The antibacterial activity was further tested in vivo using a murine model of MRSA skin infection. Ultra-performance liquid chromatography coupled to high-resolution mass spectrometry (UPLC/HRMS) approach was applied for the identification of the metabolites responsible for the antibacterial activity. The antioxidant potential was evaluated using five in vitro assays: TAC (total antioxidant capacity), DPPH, ABTS, FRAP (ferric reducing antioxidant power) and iron-reducing power. RESULTS: In vitro, star anise aqueous methanolic extract showed significant inhibition and detachment activity against biofilm formation by the multidrug-resistant and highly virulent Acinetobacter baumannii AB5057 and MRSA USA300. The topical application of the extract in vivo significantly reduced the bacterial load in MRSA-infected skin lesions. The extract showed strong antioxidant activity using five different complementary methods. More than seventy metabolites from different classes were identified: phenolic acids, phenylpropanoids, sesquiterpenes, tannins, lignans and flavonoids. CONCLUSION: This study proposes the potential use of star anise polar fraction in anti-virulence strategies against persistent infections and for the treatment of staphylococcal skin infections as a topical antimicrobial agent. To our knowledge, our research is the first to provide the complete polar metabolome list of star anise in an approach to understand the relationship between the chemistry of these metabolites and the proposed antibacterial activity.

7.
Reprod Health Matters ; 25(51): 114-123, 2017 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-29210333

RESUMO

Following two decades of civil war, Somalia recently entered the post-conflict rebuilding phase that has resulted in the rapid proliferation of higher education institutions. Given the high maternal mortality ratio, the federal government has identified the reproductive health education of health service professionals as a priority. Yet little is known about the coverage of contraception, abortion, pregnancy, childbirth, and sexual and gender-based violence (SGBV) in medicine, nursing, or midwifery. In 2016, we conducted a multi-methods study to understand the reproductive health education and training landscape and identify avenues by which development of the next generation of health service professionals could be improved. Our study comprised two components: interviews with 20 key informants and 7 focus group discussions (FGDs) with 48 physicians, nurses, midwives, and medical students. Using the transcripts, memos, and field notes, we employed a multi-phased approach to analyse our data for content and themes. Our findings show that reproductive health education for medical and nursing students is inconsistent and significant content gaps, particularly in abortion and SGBV, exist. Students have few clinical training opportunities and the overarching challenges plaguing higher education in Somalia also impact health professions programmes in Mogadishu. There is currently a window of opportunity to develop creative strategies to improve the breadth and depth of evidence-based education and training, and multi-stakeholder engagement and the promotion of South-South exchanges appear warranted.


Assuntos
Conflitos Armados , Educação Médica/organização & administração , Educação em Enfermagem/organização & administração , Tocologia/educação , Serviços de Saúde Reprodutiva/organização & administração , Aborto Induzido/educação , Aborto Induzido/métodos , Anticoncepção/métodos , Educação Médica/normas , Educação em Enfermagem/normas , Feminino , Humanos , Masculino , Serviços de Saúde Materno-Infantil/organização & administração , Delitos Sexuais/prevenção & controle , Somália
8.
Cancer Nurs ; 32(4): 317-24, 2009.
Artigo em Inglês | MEDLINE | ID: mdl-19444089

RESUMO

Breast cancer is the most common form of cancer in Muslim women in Pakistan. The impact of the initial diagnosis, culture, religion, and psychosocial and psychological aspects of the disease is not well established. This qualitative study examined the experience and coping strategies used by patients with breast cancer in relation to its impact on their physical, mental health, religious, and family issues. Thirty patients with breast cancer were interviewed. Data were analyzed using thematic analysis. The patient's experience of breast cancer focused on the range of emotions felt throughout the illness trajectory, the importance of religion and family support on coping strategies used to manage the adverse effects of chemotherapy, and also the financial concerns. This is the first study to examine Pakistani Muslim women's views on the lived experience of breast cancer. This article provides clarification of the voiced experiences of women with breast cancer. The data not only highlight the role of religion and family support as essential coping strategies but also emphasize the issues of isolation, aggression, and anger as common responses to chemotherapy. Unique features of this study are women's need to seek spiritual support for their illness and the overriding innate characteristic of maternal responsibility. These cultural features require further analysis and research.


Assuntos
Adaptação Psicológica , Atitude Frente a Saúde/etnologia , Neoplasias da Mama/etnologia , Islamismo/psicologia , Mulheres/psicologia , Adulto , Neoplasias da Mama/diagnóstico , Neoplasias da Mama/terapia , Efeitos Psicossociais da Doença , Características Culturais , Família/etnologia , Feminino , Humanos , Acontecimentos que Mudam a Vida , Pessoa de Meia-Idade , Pesquisa Metodológica em Enfermagem , Paquistão/epidemiologia , Pesquisa Qualitativa , Religião e Psicologia , Isolamento Social/psicologia , Apoio Social , Espiritualidade , Estereotipagem , Inquéritos e Questionários , Mulheres/educação
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