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1.
Nutr Diabetes ; 14(1): 22, 2024 Apr 22.
Artículo en Inglés | MEDLINE | ID: mdl-38649347

RESUMEN

BACKGROUND: The beneficial effects of folate have been observed under different conditions, but the available evidence on inflammation and reduction of cardiovascular disease (CVD) in type 2 diabetes mellitus (T2DM) is limited. The study aimed to explore the effects of folate on inflammation and homocysteine amongst individuals with T2DM. METHODS: PubMed, Scopus, and Cochrane Library were used to search for evidence. A random-effect model meta-analysis through Review Manager (version 5.4) and metaHun was performed. Results were reported as standardized mean differences (SMD) and 95% confidence intervals graphically using forest and funnel plots. RESULTS: Data from 9 trials with 426 patients living with T2DM were analyzed. Folic acid supplementation significantly revealed a large effect size on homocysteine levels compared to placebo, SMD = -1.53, 95%CI (-2.14,-0.93), p < 0.05. Additionally, we observed a medium marginal effect size on C-reactive protein (SMD = -0.68, 95%CI (-1.34, -0.01), p = 0.05). However, no significant effect on tumor necrosis factor-α (SMD = -0.86, 95%CI (-2.65, 0.93), p = 0.34), and interleukin-6 (SMD = -0.04, 95%CI (-1.08, 1.01), p = 0.95) was observed. CONCLUSION: Evidence analyzed in this study suggests that folic acid supplementation in T2DM reduces homocysteine and may mitigate CVDs. However, its effect on inflammation is inconclusive.


Asunto(s)
Proteína C-Reactiva , Diabetes Mellitus Tipo 2 , Suplementos Dietéticos , Ácido Fólico , Homocisteína , Inflamación , Ensayos Clínicos Controlados Aleatorios como Asunto , Humanos , Proteína C-Reactiva/análisis , Proteína C-Reactiva/metabolismo , Diabetes Mellitus Tipo 2/sangre , Diabetes Mellitus Tipo 2/tratamiento farmacológico , Ácido Fólico/uso terapéutico , Ácido Fólico/administración & dosificación , Homocisteína/sangre , Inflamación/sangre , Inflamación/tratamiento farmacológico , Interleucina-6/sangre , Factor de Necrosis Tumoral alfa/sangre
2.
Artículo en Inglés | MEDLINE | ID: mdl-38541371

RESUMEN

As the world grappled with the COVID-19 pandemic, healthcare workers (HCWs) continued to provide uninterrupted health care service delivery; therefore, this disproportionately affected their wellbeing. Our study explored the wellbeing of HCWs during the COVID-19 era in public health facilities in the City of Johannesburg, Gauteng province, South Africa. A qualitative study was conducted among twenty (20) HCWs through face-to-face in-depth interviews (IDIs) in the form of semi-structured interviews, audiotapes, and transcribed verbatim, and thematically analyzed with NVivo version 10. The findings showed that over half of HCWs (aged between 27 and 60 years) tested positive for COVID-19. Also, one third of HCWs' family members tested positive while some died due to COVID-19 infection. Informed by the workers' wellbeing framework, four themes emerged with fourteen sub-themes. Firstly, unsafe work environment was characterized by human resource related challenges such as increased workload; staff shortage; insufficient resources, e.g., personal protective equipment (PPE); poor policies in terms of compensation/allowance for being infected with COVID-19; poor health services; and death of colleagues. Secondly, poor health outcomes were described as strained emotional (psychosocial distress) and physical (respiratory related conditions) wellbeing. Thirdly, home and community environments were negatively impacted by interrupted relationships with family and friends, and experiences of deaths of loved ones. Finally, HCWs engaged personal wellbeing strategies through self-motivation; staying positive; family support; and participating in resilience-promoting extra mural activities to cope during the pandemic. In conclusion, the wellbeing of HCWs was aggravated during the COVID-19 era and led to low morale and compromised healthcare quality. This study advocates for promotion of greater resilience, and psychological and physical safety of HCWs through evidence-based, multilevel-multicomponent interventions at the workplace, home, and community environments in addition to strengthening public health policies and response to future pandemics.


Asunto(s)
COVID-19 , Humanos , Adulto , Persona de Mediana Edad , Sudáfrica/epidemiología , COVID-19/epidemiología , Pandemias , Personal de Salud , Política Pública , Instituciones de Salud
3.
Thromb Res ; 234: 101-112, 2024 02.
Artículo en Inglés | MEDLINE | ID: mdl-38211378

RESUMEN

Aim Although antiretroviral therapy (ART) is available, the rate of new HIV infections is alarming. With this trend, it is anticipated that the use of ART will continue to rise, potentially resulting in associated vascular disorders. Therefore, we aimed to examine the impact of ART on endothelial function in people living with HIV (PLHIV), a predictor of cardiovascular diseases. METHOD: A comprehensive search for evidence was made on PubMed and Scopus on May 06, 2023, following the Preferred Reporting Items for Systematic Review and Meta-analysis. Cochrane and Newcastle-Ottawa quality assessment scales were used to evaluate quality, while the metaHun web tool and Review Manager version 5.4.1 were used for analysis. Subgroup, sensitivity, and publication bias were conducted for each outcome measure. RESULTS: We identified 37 studies, including a sample size of 3700 with 2265 individuals on ART. The analyzed evidence showed a large significant effect of ART on vascular cell adhesion molecule-1, with a standardized mean difference (SMD) of -1.23 (95 % CI: -1.72, -0.74; p = 0.0013). Similarly, a significant medium effect of ART was observed on intercellular cell adhesion molecule-1 in PLHIV, with an SMD of -1.28 (95 % CI: -2.00, -0.56; p = 0.0231) compared to the control group. Furthermore, ART exhibited a significant but small effect on flow-mediated dilation (FMD) with an SMD of -0.40 (95 % CI: -0.62, -0.19, p = 0.0159). CONCLUSION: Our findings show an improved endothelial function in PLHIV on ART, as demonstrated by reduced adhesion molecules; however, ART exhibited a small effect on FMD, thus suggesting PLHIV on ART may still be at risk of endothelial dysfunction and further cardiovascular diseases.


Asunto(s)
Enfermedades Cardiovasculares , Infecciones por VIH , Enfermedades Vasculares , Humanos , Infecciones por VIH/complicaciones , Infecciones por VIH/tratamiento farmacológico , Enfermedades Cardiovasculares/etiología , Moléculas de Adhesión Celular , Molécula 1 de Adhesión Celular Vascular
4.
Antioxidants (Basel) ; 12(8)2023 Aug 04.
Artículo en Inglés | MEDLINE | ID: mdl-37627561

RESUMEN

Diabetes mellitus is recognized as the leading contributor to cardiovascular disease and associated mortality rates worldwide. Despite the use of pharmaceutical drugs to treat diabetes, its prevalence continues to rise alarmingly. Therefore, exploring remedies with a lower toxicity profile is crucial while remaining safe and effective in addressing this global public health crisis. Punica granatum Linn (pomegranate), known for its properties and safety profile, has been investigated in applied research and preclinical and clinical trials. However, conflicting reports still exist regarding its effects in diabetes. According to our knowledge, no systematic review has been conducted to critically analyze evidence from preclinical and clinical trials simultaneously, explicitly focusing on oxidative stress, inflammation, and endothelial function in diabetes. Therefore, in this systematic review, we searched for evidence on the impact of pomegranate in diabetes using databases such as PubMed, Scopus, and Google Scholar. Our inclusion criteria were limited to studies published in English. Of the 170 retrieved studies, 46 were deemed relevant and underwent critical analysis. The analyzed evidence suggests that pomegranate has the potential to alleviate oxidative stress, inflammation, and endothelial dysfunction in diabetes. Although a beneficial impact was noted in these markers, the endothelial function evidence still requires validation through further clinical trials with a powered sample size.

5.
Children (Basel) ; 10(7)2023 Jun 27.
Artículo en Inglés | MEDLINE | ID: mdl-37508610

RESUMEN

An increase in childhood obesity has become a global concern since childhood obesity often leads to adulthood obesity. This study aimed to investigate whether there is seasonal variation in fat patterning, and whether fat patterning is associated with seasons among the Ellisras population aged 5-15 years. A total of 1986 children and adolescents (1034 boys and 952 girls) aged 5-15 enrolled in this cross-sectional study. Skinfold measurements were obtained using standard procedures. Obesity prevalence was determined using frequency analysis. The correlation between obesity and two seasons was tested using multinomial regression analysis. The results showed that girls aged 11-15 years had significantly (p ≤ 0.03) larger median fat variables (triceps, biceps, and suprailiac) in spring compared to autumn. The prevalence of obesity ranged from 3-11% with boys being more obese (4-11%) than girls (3-7%) aged 5-15. Regression analysis showed a negative significant (p ≤ 0.001) correlation between autumn and obesity by the subscapular/(subscapular+triceps) (SST) ratio, both unadjusted -2.991 (95%CI -3.233:-2.803) and adjusted -2.897 (95% CI -4.331:-1.629). The findings of the study showed that there was seasonal variation in fat patterning among boys and girls in the Ellisras population and that fat patterning is associated with seasons.

6.
Viruses ; 15(7)2023 06 26.
Artículo en Inglés | MEDLINE | ID: mdl-37515129

RESUMEN

Antiretroviral therapy (ART) regimens have been shown to cause metabolic changes in people living with HIV (PLWH), predisposing them to cardiometabolic disease (CVMD). However, such evidence is less established in pregnant women living with HIV (pWLWH) on ART. Pregnancy-induced cardiometabolic risks (CMR) can predispose to unfavourable pregnancy outcomes and further persist in the postpartum period, resolve, and recur in subsequent pregnancies, or emerge as newly diagnosed chronic diseases of ageing. Therefore, this systematic review aimed at synthesizing evidence on CMR and perinatal outcomes among pWLWH in the era of ART. We considered prospective and retrospective cohorts, case-control, cross-sectional, and interventional studies published in English. Specific keywords were used to conduct a thorough literature search on PubMed-Medline and Scopus following the Preferred Reporting Items for Systematic Review and Meta-Analysis guideline. Two investigators independently screened the search outputs and reviewed full texts of potentially eligible articles. Data extraction was conducted by one investigator and verified by the second investigator. Thirty-one relevant studies conducted on 20,904 pWLWH on ART across Africa, Asia, Europe, and America were included. Studies demonstrate inconclusive findings, especially on perinatal outcomes, but significant risks of gestational hypertension and dyslipidemia were reported in pWLWH on ART compared to the control group. Therefore, future studies should focus more on these perinatal outcomes, and their impact on postpartum maternal health and growth trajectories of uninfected infants born from pWLWH who are either on ART or ART-naïve in comparison to infants born of HIV-negative mothers over the life course, especially in HIV-burdened African countries.


Asunto(s)
Enfermedades Cardiovasculares , Infecciones por VIH , Complicaciones Infecciosas del Embarazo , Lactante , Embarazo , Humanos , Femenino , Mujeres Embarazadas , Complicaciones Infecciosas del Embarazo/tratamiento farmacológico , Estudios Prospectivos , Estudios Retrospectivos , Estudios Transversales , Infecciones por VIH/complicaciones , Infecciones por VIH/tratamiento farmacológico , Resultado del Embarazo , Enfermedades Cardiovasculares/epidemiología , Enfermedades Cardiovasculares/etiología
7.
Artículo en Inglés | MEDLINE | ID: mdl-37174188

RESUMEN

The rate of new human immunodeficiency virus (HIV) infections globally is alarming. Although antiretroviral therapy (ART) improves the quality of life among this group of patients, ARTs are associated with risk of cardiovascular diseases (CVD). Moreover, virally suppressed patients still experience immune activation associated with HIV migration from reservoir sites. Statins are widely recommended as therapeutic agents to control ART-related CVD; however, their impacts on the cluster of differentiation (CD)4 count and viral load are inconsistent. To assess the effect of statins on markers of HIV infections, immune activation and cholesterol, we thoroughly reviewed evidence from randomised controlled trials. We found 20 relevant trials from three databases with 1802 people living with HIV (PLHIV) on statin-placebo treatment. Our evidence showed no significant effect on CD4 T-cell count standardised mean difference (SMD): (-0.59, 95% confidence intervals (CI): (-1.38, 0.19), p = 0.14) following statin intervention in PLHIV on ART. We also found no significant difference in baseline CD4 T-cell count (SD: (-0.01, 95%CI: (-0.25, 0.23), p = 0.95). Our findings revealed no significant association between statins and risk of viral rebound in PLHIV with undetectable viral load risk ratio (RR): (1.01, 95% CI: (0.98, 1.04), p = 0.65). Additionally, we found a significant increase in CD8+CD38+HLA-DR+ T-cells (SMD (1.10, 95% CI: (0.93, 1.28), p < 0.00001) and CD4+CD38+HLA-DR+ T-cells (SMD (0.92, 95% CI: (0.32, 1.52), p = 0.003). Finally, compared to placebo, statins significantly reduced total cholesterol (SMD: (-2.87, 95% CI: (-4.08, -1.65), p < 0.0001)). Our results suggest that the statin lipid-lowering effect in PLHIV on ART may elevate immune activation without influencing the viral load and CD4 count. However, due to the limited evidence synthesised in this meta-analysis, we recommend that future powered trials with sufficient sample sizes evaluate statins' effect on CD4 count and viral load, especially in virally suppressed patients.


Asunto(s)
Enfermedades Cardiovasculares , Infecciones por VIH , VIH-1 , Inhibidores de Hidroximetilglutaril-CoA Reductasas , Humanos , Infecciones por VIH/complicaciones , Inhibidores de Hidroximetilglutaril-CoA Reductasas/uso terapéutico , Calidad de Vida , Antígenos HLA-DR , Recuento de Linfocito CD4 , Enfermedades Cardiovasculares/prevención & control , Enfermedades Cardiovasculares/complicaciones , Colesterol , Carga Viral
8.
Molecules ; 28(8)2023 Apr 14.
Artículo en Inglés | MEDLINE | ID: mdl-37110702

RESUMEN

As is well known, plant products have been increasingly utilized in the pharmaceutical industry in recent years. By combining conventional techniques and modern methodology, the future of phytomedicines appears promising. Pogostemon Cablin (patchouli) is an important herb used frequently in the fragrance industries and has various therapeutic benefits. Traditional medicine has long used the essential oil of patchouli (P. cablin) as a flavoring agent recognized by the FDA. This is a gold mine for battling pathogens in China and India. In recent years, this plant has seen a significant surge in use, and approximately 90% of the world's patchouli oil is produced by Indonesia. In traditional therapies, it is used for the treatment of colds, fever, vomiting, headaches, and stomachaches. Patchouli oil is used in curing many diseases and in aromatherapy to treat depression and stress, soothe nerves, regulate appetite, and enhance sexual attraction. More than 140 substances, including alcohols, terpenoids, flavonoids, organic acids, phytosterols, lignins, aldehydes, alkaloids, and glycosides, have been identified in P. cablin. Pachypodol (C18H16O7) is an important bioactive compound found in P. cablin. Pachypodol (C18H16O7) and many other biologically essential chemicals have been separated from the leaves of P. cablin and many other medicinally significant plants using repeated column chromatography on silica gel. Pachypodol's bioactive potential has been shown by a variety of assays and methodologies. It has been found to have a number of biological activities, including anti-inflammatory, antioxidant, anti-mutagenic, antimicrobial, antidepressant, anticancer, antiemetic, antiviral, and cytotoxic ones. The current study, which is based on the currently available scientific literature, intends to close the knowledge gap regarding the pharmacological effects of patchouli essential oil and pachypodol, a key bioactive molecule found in this plant.


Asunto(s)
Aceites Volátiles , Plantas Medicinales , Pogostemon , Quercetina , Aceites Volátiles/farmacología , Aceites Volátiles/química
9.
Front Pharmacol ; 14: 1132650, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37077817

RESUMEN

Background: Despite the use of available pharmaceutical drugs, high rates of metabolic diseases and cardiovascular disorders are alarming. This calls for alternative therapies that can attenuate these complications. Therefore, we investigated the beneficial effects of okra on glycaemic control in pre-diabetes and type 2 diabetes mellitus (T2D). Methods: MEDLINE and Scopus were searched for relevant studies. Collected data were analysed using RevMan and reported as mean difference and 95% confidence intervals (CI). Eight studies, including 331 patients with pre-diabetes or T2D, were eligible. Results: Our findings showed that okra treatment reduced the levels of fasting blood glucose: mean difference (MD) = -14.63 mg/dL; 95% CI (-25.25, -4.00, p = 0.007); I 2 = 33%, p = 0.17 compared to placebo. Glycated haemoglobin, however, did not differ significantly between the groups: MD = 0.01%; 95%CI (-0.51, 0.54, p = 0.96); I 2 = 23%, p = 0.28. Conclusion: this systematic review and meta-analysis found that okra treatment improves glycaemic control in patients with pre-diabetes or T2D. The findings suggest that okra may be used as a supplemental dietary nutrient, especially in pre-diabetic and T2D patients due to its potential to regulate hyperglycaemia.

10.
Biomed Pharmacother ; 162: 114686, 2023 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-37044025

RESUMEN

BACKGROUND: Polystyrene microplastics (PS-MPs) have become major environmental pollutants that adversely effects multiple organs specifically testicles. Pinostrobin (PN) is an important flavonoid which, shows several pharmacological potentials. PURPOSE: The current study was designed to elucidate the mitigative effects of PN against PS-MPs induced testicular toxicities in rats. METHODS: 48 male albino rats were randomly distributed into 4 groups, control, PS-MPs group (0.01 mg/kg), PS-MPs + PN group (0.01 mg/kg of PS-MPs; 40 mg/kg of PN) and PN group (40 mg/kg). RESULTS: PS-MPs intoxication substantially lessened the activities of glutathione peroxidase (GPx), glutathione reductase (GSR), superoxide dismutase (SOD) along with catalase (CAT) while, raised the level of malondialdehyde (MDA) as well as reactive oxygen species (ROS). Additionally, PS-MPs reduced luteinizing hormone (LH), plasma testosterone, follicle-stimulating hormone (FSH) concentration, sperm motility, sperm count, expression of steroidogenic enzymes and Bcl-2 (anti-apoptotic protein) along with the count of spermatogenic cells. While, dead sperm count, sperm abnormalities (tail, neck and head), Bax and caspase-3 (apoptotic proteins) expression along with histopathological anomalies were elevated. Moreover, PS-MPs exposure increased the level of inflammatory markers. However, PN treatment considerably decreased oxidative stress (OS) by reducing ROS as well as increased sperm motility and alleviated all the damages induced by the PS-MPs. CONCLUSION: Therefore, it is concluded that PN may prove a potential therapeutic candidate to restore all the PS-MPs-induced testicular toxicities.


Asunto(s)
Poliestirenos , Testículo , Masculino , Ratas , Animales , Poliestirenos/farmacología , Microplásticos/farmacología , Plásticos/farmacología , Especies Reactivas de Oxígeno/farmacología , Estrés Oxidativo , Motilidad Espermática , Semen
11.
Chem Biol Interact ; 377: 110466, 2023 May 25.
Artículo en Inglés | MEDLINE | ID: mdl-37004951

RESUMEN

The concept of drug delivery systems as a magic bullet for the delivery of bioactive compounds has emerged as a promising approach in the treatment of different diseases with significant advantages over the limitations of traditional methods. While nanocarrier-based drug delivery systems are the main advocates of drug uptake because they offer several advantages including reduced non-specific biodistribution, improved accumulation, and enhanced therapeutic efficiency; their safety and biocompatibility within cellular/tissue systems are therefore important for achieving the desired effect. The underlying power of "design-interplay chemistry" in modulating the properties and biocompatibility at the nanoscale level will direct the interaction with their immediate surrounding. Apart from improving the existing nanoparticle physicochemical properties, the balancing of the hosts' blood components interaction holds the prospect of conferring newer functions altogether. So far, this concept has been remarkable in achieving many fascinating feats in addressing many challenges in nanomedicine such as immune responses, inflammation, biospecific targeting and treatment, and so on. This review, therefore, provides a diverse account of the recent advances in the fabrication of biocompatible nano-drug delivery platforms for chemotherapeutic applications, as well as combination therapy, theragnostic, and other diseases that are of interest to scientists in the pharmaceutical industries. Thus, careful consideration of the "property of choice" would be an ideal way to realize specific functions from a set of delivery platforms. Looking ahead, there is an enormous prospect for nanoparticle properties in regulating biocompatibility.


Asunto(s)
Sistemas de Liberación de Medicamentos , Nanopartículas , Distribución Tisular , Sistemas de Liberación de Medicamentos/métodos , Nanomedicina/métodos , Nanopartículas/química , Preparaciones Farmacéuticas
12.
Sci Total Environ ; 881: 163522, 2023 Jul 10.
Artículo en Inglés | MEDLINE | ID: mdl-37068672

RESUMEN

In recent times, the need to make water safer and cleaner through the elimination of recalcitrant pharmaceutical residues has been the aim of many studies. Fluoroquinolone antibiotics such as ciprofloxacin, norfloxacin, enrofloxacin, and levofloxacin are among the commonly detected pharmaceuticals in wastewater. Since the presence of these pharmaceuticals in water bodies poses serious risks to living organisms, it is vital to adopt effective wastewater treatment techniques for their complete removal. Electrochemical technologies such as photoelectrocatalysis, electro-Fenton, electrocoagulation, and electrochemical oxidation have been established as techniques capable of the complete removal of organics including pharmaceuticals from wastewater. Hence, this review presents discussions on the recent progress (literature within 2018-2022) in the applications of common electrochemical processes for the degradation of fluoroquinolone antibiotics from wastewater. The fundamentals of these processes are highlighted while the results obtained using the processes are critically discussed. Furthermore, the inherent advantages and limitations of these processes in the mineralization of fluoroquinolone antibiotics are clearly emphasized. Additionally, appropriate recommendations are made toward improving electrochemical technologies for the complete removal of these pharmaceuticals with minimal energy consumption. Therefore, this review will serve as a bedrock for future researchers concerned with wastewater treatments to make informed decisions in the selection of suitable electrochemical techniques for the removal of pharmaceuticals from wastewater.


Asunto(s)
Contaminantes Químicos del Agua , Purificación del Agua , Aguas Residuales , Fluoroquinolonas , Oxidación-Reducción , Agua , Purificación del Agua/métodos , Antibacterianos , Preparaciones Farmacéuticas , Contaminantes Químicos del Agua/análisis , Peróxido de Hidrógeno/química
13.
Pharmaceutics ; 14(11)2022 Nov 21.
Artículo en Inglés | MEDLINE | ID: mdl-36432732

RESUMEN

(1) Background: The increasing use of silver and platinum bimetallic nanoparticles in the diagnosis and treatment of cancer presents significant advances in biomedical applications due to their extraordinary physicochemical properties. This study investigated the role of aqueous phytochemical extract in stabilizing platinum nanodots-decorated silver nanocubes (w-Pt@AgNPs) for enhancing antioxidant activities and their mechanism. (2) Methods: UV-Vis, Fourier transform infrared (FTIR) spectroscopy, and transmission electron microscopy (TEM) were used to characterize the formed w-Pt@AgNPs. LC-QToF-MS/MS was used to analyze the bioactive compounds, while DPPH, ABTS, and FRAP were used to detect the scavenging potential. Flow cytometric assays were performed to investigate the cytotoxicity and the mechanism of cell death. (3) Results: Morphological studies indicated that w-Pt@AgNPs were cube in shape, decorated by platinum nanodots on the surfaces. Compared to ethanolic extract-synthesized e-Pt@AgNPs, w-Pt@AgNPs exhibited the strongest antioxidant and cytotoxic activity, as data from Annexin V and Dead cell labeling indicated higher induction of apoptosis. Despite the high proportion of early apoptotic cells, the w-Pt@AgNPs triggered a decrease in G1/G0 cell cycle phase distribution, thereby initiating a G2/M arrest. (4) Conclusions: By enhancing the antioxidant properties and promoting apoptosis, w-Pt@AgNPs exhibited remarkable potential for improved cancer therapy outcomes.

14.
Biomed Pharmacother ; 153: 113256, 2022 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-36076615

RESUMEN

Punica granatum L (pomegranate) is one of the Mediterranean medicinal plants that has been used for generations in treating ulcers, diarrhea, and male infertility. Increasing evidence has revealed that pomegranate possesses myriads of pharmacological activities such as anti-diabetic, anti-tumor, anti-inflammatory, anti-malaria, anti-fibrotic, anti-fungal, anti-bacterial, and other effects. Consumption of pomegranate could be used to improve gut microbiota, and therefore prevent obesity and diabetes. The mechanisms of actions of pomegranate, mainly involve nuclear factor-erythroid factor 2-related factor 2 (Nrf2), nuclear factor kappa B (NF-kB), and mitogen-activated protein kinase (MAPK) signaling pathways. In recent times, in silico molecular docking studies demonstrated that pomegranate extract and or its phytochemicals are potential inhibitors of severe acute respiratory syndrome coronavirus 2 (SARS-COV-2) spike protein and angiotensin-converting enzyme 2 (ACE2) receptor contact. Also, some clinical trials have indicated that pomegranate can be consumed for alleviation of non-alcoholic fatty liver disease, metabolic syndrome, dental infections, and menopausal symptoms. To date, active compounds, viz. alkaloids, anthocyanidins, tannins, flavonoids, phenolics, proanthocyanidins, sterols, terpenes, terpenoids, xanthonoids, fatty acids, organic acids, lignans, saccharides, and vitamin C have been isolated from pomegranate. Therefore, the current review article aimed to gather and presents an update on the ethnomedicinal uses, pharmacological activities, phytochemistry, and molecular mechanisms of Punica granatum L. This knowledge is of paramount importance in the future in drug discovery for the development of novel natural drugs for the treatment of various ailments.


Asunto(s)
Tratamiento Farmacológico de COVID-19 , Lythraceae , Granada (Fruta) , Antiinflamatorios/farmacología , Humanos , Lythraceae/química , Simulación del Acoplamiento Molecular , Extractos Vegetales/química , Extractos Vegetales/farmacología , Extractos Vegetales/uso terapéutico , SARS-CoV-2
15.
Foodborne Pathog Dis ; 19(6): 386-393, 2022 06.
Artículo en Inglés | MEDLINE | ID: mdl-35512735

RESUMEN

Consumption of food that is contaminated with Shiga toxin-producing Escherichia coli (STEC) has been linked to serious foodborne disease outbreaks. Our aim was to provide a descriptive study on the presence and virulence factors of STEC and non-STEC O157 isolates recovered from 2017 diverse meat and meat product samples from all provinces of South Africa (n = 1758) and imported meat from South Africa's major ports of entry (n = 259). A cross-sectional study was undertaken to analyze raw intact meat, raw processed (nonintact) meat, and ready-to-eat (RTE) meat from cattle, game, sheep, pork, and poultry. Isolation was performed using International Organization for Standardization-based microbiological techniques, while detection and characterization were performed using real-time PCR (RT-PCR) and conventional PCR targeting the stx1, stx2, eae, and ehxA genes. A total of 28 of 1758 (1.59%; confidence interval [CI] 1.1-2) samples from the domestic market tested positive (n = 10 Escherichia coli O157:H7; n = 14 Escherichia coli O157: non-H7; and n = 4 non-O157 STEC), while 4/259 (1.54%; CI 0.4-4) samples from ports of entry tested positive for Escherichia coli O157:H7 based on RT-PCR. On average, diverse samples from domestic meat and meat products from cattle showed the highest number of positive samples (22/1758; 1.3%; CI 0.8-2). RT-PCR detected more positive samples (n = 32) compared with culture (n = 17). Sixteen different virulence factor combinations were observed. Our findings demonstrate a relatively low presence of diverse STEC strains along the meat value chain. To our knowledge, this is the first extensive report in South Africa to analyze STEC and non-STEC O157 from local and imported samples from many animal species. This is important as it reveals virulence factors in STEC strains circulating in meat and meat products in South Africa, which contribute to the risk of infection.


Asunto(s)
Infecciones por Escherichia coli , Proteínas de Escherichia coli , Carne , Escherichia coli Shiga-Toxigénica , Animales , Estudios Transversales , Infecciones por Escherichia coli/epidemiología , Infecciones por Escherichia coli/veterinaria , Proteínas de Escherichia coli/genética , Proteínas de Escherichia coli/metabolismo , Carne/microbiología , Reacción en Cadena en Tiempo Real de la Polimerasa , Toxina Shiga/genética , Escherichia coli Shiga-Toxigénica/patogenicidad , Sudáfrica/epidemiología , Virulencia , Factores de Virulencia/genética , Factores de Virulencia/metabolismo
16.
Front Vet Sci ; 9: 762771, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35296062

RESUMEN

The aim of this study was to find, evaluate, and document ethnoveterinary medications used to treat livestock ailments in Namibia's Omusati and Kunene regions. A semi-structured questionnaire was used to interview a total of 100 people. The results of the survey will be useful in creating the groundwork for future scientific research and validation. There were 15 veterinary medicinal plant species identified, which were divided into 10 families. The only types of growth that were utilized were trees, herbs, and bushes. Leaves (71%) were the most widely used plant parts for ethnoveterinary medicine (EVM), followed by bark (14%), stem (8%), and root (7%). Fresh components were frequently preferred in medical compositions. Oral administration was the most common (42.76%), followed by cutaneous (topical) administration (36.18%). Indigenous knowledge was largely passed down through the generations by word of mouth, indicating that it was vulnerable to fragmentation and loss. EVMs were crushed, soaked in water, and administered orally or topically. Farmers who were older had greater EVM knowledge than those who were younger. Ziziphus mucronate, Combretum collinum, and Colophospermum mopane were used in the treatment of diarrhea. Z. mucronate was also used in the treatment of mastitis. Skin infections were treated using Aloe esculenta and Salvadora persica. Ximenia americana and C. imberbe were used to treat eye infections in cattle, goats, and sheep. Retained placentas were treated using Acacia nilotica, A. erioloba, and Grewia flavescens. Roots from Fockea angustifolia were used in treating anthrax. A. esculenta Leach placed best with a fidelity level (FL) value of 90%, followed by A. littoralis Baker in second place (56%), and Combretum collinum Fresen in third place (54%). The majority of EVM recipes took 2-3 days to recover. More research is needed to determine the minimum inhibitory concentrations, biological activities, and toxicities, as well as characterize the chemical components of the plants and determine whether there is a plausible mechanism by which plant chemicals or possible physiological effects could achieve the results described by the respondents.

17.
Infect Dis (Lond) ; 54(3): 170-177, 2022 03.
Artículo en Inglés | MEDLINE | ID: mdl-34705574

RESUMEN

BACKGROUND: Tuberculosis is a global health concern and has become more complex to diagnose due to mutations in the causative agent, Mycobacterium tuberculosis. In a setting with high TB prevalence, having a rapid and accurate diagnosis may reduce the rate of infections. The study aimed to evaluate the diagnostic performance of GeneXpert MTB/RIF assay in sputum samples from suspected tuberculosis patients. METHODS: A total of 1 328 sputum samples were collected from patients, across 12 clinics in the Shiselweni region, Eswatini. One thousand one hundred and ten (1110; 84%) samples were simultaneously processed on GeneXpert MTB/RIF assay and MGIT culture. RESULTS: Two hundred and ninety-seven (297) samples tested GeneXpert positive and 813 GeneXpert negatives, while 310 samples tested positive and 800 tested negative on the MGIT culture method. The positive predictive value on GeneXpert MTB/RIF assay was 83% while the negative predictive value was 97.80%. At p-value = .796, sputum quality did not affect the positivity of the GeneXpert MTB/RIF results. Sputum volume had a significant impact on the performance of the GeneXpert MTB/RIF with increased sensitivity in 4 ml and 6 ml samples. CONCLUSIONS: Although detection of tuberculosis using the GeneXpert MTB/RIF assay in sputum samples is not limited to one specific characteristic, sputum volume assessment should be considered as an integral part of routine laboratory diagnosis of tuberculosis especially in high tuberculosis prevalent settings. However, the ability of the GeneXpert MTB/RIF to provide rapid TB diagnosis is not dependent on sputum quality.


Asunto(s)
Mycobacterium tuberculosis , Tuberculosis Ganglionar , Tuberculosis Pulmonar , Esuatini , Humanos , Mycobacterium tuberculosis/genética , Rifampin , Sensibilidad y Especificidad , Esputo/microbiología , Tuberculosis Pulmonar/microbiología
18.
Front Pharmacol ; 12: 779352, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34899343

RESUMEN

Ginger (Zingiber officinale) is one of the most widely used natural products consumed as a spice and medicine for treating diabetes, flatulent intestinal colic, indigestion, infertility, inflammation, insomnia, a memory booster, nausea, rheumatism, stomach ache, and urinary tract infections. To date, over 400 bioactive components, such as diarylheptanoids, gingerol analogues, phenylalkanoids, sulfonates, monoterpenoid glycosides, steroids, and terpene compounds have been derived from ginger. Increasing evidence has revealed that ginger possesses a broad range of biological activities, especially protective effects against male infertility, nausea and vomiting, analgesic, anti-diabetic, anti-inflammatory, anti-obesity, and other effects. The pharmacological activities of ginger were mainly attributed to its active phytoconstituents such as 6-gingerol, gingerdiol, gingerol, gingerdione, paradols, shogaols, sesquiterpenes, zingerone, besides other phenolics and flavonoids. In recent years, in silico molecular docking studies revealed that gingerol (6-gingerol, 8-gingerol, and 10-gingerol) and Shogaol (6-shogaol, 8-shogaol, 10-shogaol) had the best binding affinities to the receptor protein in disease conditions such as diabetes, inflammation, obesity, and SARS-CoV-2. Furthermore, some clinical trials have indicated that ginger can be consumed for alleviation of nausea and vomiting induced by surgery, pain, diabetes, obesity, inflammation, male infertility. This review provides an updated understanding of the scientific evidence on the development of ginger and its active compounds as health beneficial agents in future clinical trials.

19.
Sex Med ; 9(5): 100420, 2021 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-34388420

RESUMEN

INTRODUCTION: The use of current available treatment for male erectile dysfunction (ED) has some limitations that are related to efficacy and adverse effects. Nanotechnology has been used as a new tool in medicine to improve these limitations and new medications potentially to alleviate and cure ED. AIM: To review the currently literature on new nano medications for ED based on scientific and clinical studies, efficacy, safety, mechanisms of action, and to identify gaps for future research. METHODS: A comprehensive literature review was conducted via Google Scholar, Science Direct, and PubMed on English publications using different keywords such as "erectile dysfunction", "emerging treatments", "nanotechnology", and "herbal medicine". The retrieved papers were organized into groups according to the sections covered in this review paper. MAIN OUTCOMES MEASURES: We reviewed novel ED treatments such as nanotechnological phosphodiesterase inhibitors, papaverine hydrochloride, sialorphin, adipose tissue-derived stem cells, sonic hedgehog, and herbal medicine. RESULTS: Numerous preclinical studies have addressed novel phosphodiesterase 5 inhibitors nanoparticle, and their recent delivery systems. Nitric oxide, sialorphin, sonic hedgehog, and herbal medicine loaded nanoparticles and nano adipose tissue-derived stem cells as a potential new treatment for ED. In addition, papaverine-containing nanoparticles have been reported. A limited number of randomized clinical studies have determined the mechanism of these treatments. CONCLUSION: A literature review on the application of nanotechnology in ED therapy was successfully conducted. New nano medications are promising to treat ED. However, further studies are warranted to further assess their efficacy and safety. Masuku NP, Unuofin JO, Lebelo SL. Advances in Nanoparticle Delivery System for Erectile Dysfunction: An Updated Review. Sex Med 2021;9:100420.

20.
Artículo en Inglés | MEDLINE | ID: mdl-33401502

RESUMEN

BACKGROUND: The study aimed to investigate the association of Body Roundness Index (BRI), A Body Shape Index (ABSI), and Conicity Index with nutritional status and cardiovascular risk factors in South African rural young adults. METHODS: The study included a total of 624 young adults aged 21-30 years from the Ellisras rural area. Anthropometric indices, blood pressure (BP), and biochemical measurements were measured. RESULTS: BRI was significantly correlated with insulin (0.252 males, females 0.255), homeostatic model assessment (HOMA)-ß (0.250 males, females 0.245), and TG (0.310 males, females 0.216). Conicity Index was significantly associated with pulse rate (PR) (ß 0.099, 95% confidence interval (CI) 0.017, 0.143, p < 0.013; ß 0.081, 95% CI 0.000 0.130, p < 0.048), insulin (ß 0.149, 95% CI 0.286 0.908, p < 0.001; ß 0.110, 95% CI 0.123 0.757, p < 0.007). Conicity Index is associated with insulin resistance (IR) (odds ratio (OR) 7.761, 95% CI 5.783 96.442, p < 0.001; OR 4.646, 95% CI 2.792 74.331, p < 0.007), underweight (OR 0.023, 95% CI 0.251 0.433, p < 0.001; OR 0.031, 95% CI 0.411 0.612, p < 0.001), and obesity (OR 1.058, 95% CI 271.5 4.119, p < 0.001; OR 1.271, 95% CI 0.672 1.099, p < 0.001). CONCLUSION: Conicity Index was positively associated with insulin resistance, hypertension and dyslipidaemia. Further investigation of these indices and their association with nutritional status and cardiovascular diseases (CVDs) could assist in efforts to prevent CVD in the rural South African population.


Asunto(s)
Antropometría , Enfermedades Cardiovasculares , Población Rural , Adulto , Antropometría/métodos , Índice de Masa Corporal , Enfermedades Cardiovasculares/epidemiología , Femenino , Factores de Riesgo de Enfermedad Cardiaca , Humanos , Masculino , Estado Nutricional , Población Rural/estadística & datos numéricos , Sudáfrica/epidemiología , Adulto Joven
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