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1.
Artículo en Inglés | MEDLINE | ID: mdl-38791744

RESUMEN

In the United States, patients with chronic conditions experience disparities in health outcomes across the care continuum. Among patients with multiple sclerosis, diabetic retinopathy, and lung cancer, there is a lack of evidence summarizing interventions to improve care and decrease these disparities. The aim of this rapid literature review was to identify interventions among patients with these chronic conditions to improve health and reduce disparities in screening, diagnosis, access to treatment and specialists, adherence, and retention in care. Using structured search terms in PubMed and Web of Science, we completed a rapid review of studies published in the prior five years conducted in the United States on our subject of focus. We screened the retrieved articles for inclusion and extracted data using a standard spreadsheet. The data were synthesized across clinical conditions and summarized. Screening was the most common point in the care continuum with documented interventions. Most studies we identified addressed interventions for patients with lung cancer, with half as many studies identified for patients with diabetic retinopathy, and few studies identified for patients with multiple sclerosis. Almost two-thirds of the studies focused on patients who identify as Black, Indigenous, or people of color. Interventions with evidence evaluating implementation in multiple conditions included telemedicine, mobile clinics, and insurance subsidies, or expansion. Despite documented disparities and a focus on health equity, a paucity of evidence exists on interventions that improve health outcomes among patients who are medically underserved with multiple sclerosis, diabetic retinopathy, and lung cancer.


Asunto(s)
Retinopatía Diabética , Neoplasias Pulmonares , Esclerosis Múltiple , Humanos , Esclerosis Múltiple/terapia , Neoplasias Pulmonares/terapia , Retinopatía Diabética/terapia , Estados Unidos , Disparidades en Atención de Salud , Accesibilidad a los Servicios de Salud
2.
Saudi J Biol Sci ; 29(5): 3207-3212, 2022 May.
Artículo en Inglés | MEDLINE | ID: mdl-35844424

RESUMEN

The crude aqueous and ethanolic leaf extracts of Coccinia indica were screened for methicillin resistant Staphylococcus aureus (MRSA), multidrug resistant (MDR) Streptococcus pyogenes, Escherichia coli, Candida auris and Trichophyton rubrum. Antibacterial and antifungal activities were assessed by standard disc diffusion and tube dilution methods. The results showed that ethanolic extract inhibited MRSA, C. auris at 250 µg/mL and S. pyogenes at 200 µg/mL comparable to the susceptible antibiotics used as positive controls. There was no observable activity against T. rubrum, while a mild activity was observed with ethanolic extracts over E. coli at higher concentrations which did not turn out to be complete or significant inhibition. Aqueous extract did not exhibit any observable activity over the five organisms tested. Furthermore, the results showed clear cut concentration dependent antibacterial and antifungal activities with additional variation of specific activity over Gram positive and negative bacteria, yeast and filamentous fungi. So, it is evident that ethanolic extract of Coccinia indica could be further escalating for mechanistic studies in the era of multidrug resistance, indigenous preparations from herbs could be a safe choice over clinically challenging organisms.

3.
Pak J Pharm Sci ; 35(3): 827-834, 2022 May.
Artículo en Inglés | MEDLINE | ID: mdl-35791483

RESUMEN

Moringa oleifera plant grows in many countries worldwide and being utilized as a customary medication. The current study aimed to investigate the biological effect of Moringa oleifera leaf extract (MOE) alone or in combination with silver nanoparticles (AgNPs) on colon cancer, microbial cell growth. MOE was utilized in the green synthesis of AgNPs. The characterization of AgNPs was done by UV-Vis-spectrophotometry, X-ray diffraction (XRD) and scanning electron microscopy (SEM). MOE was tested for their sugars, active biomolecules, ROS, protein contents. Results revealed that created AgNPs are about 61 nm in diameter. There were no detectable sugar and protein in MOE, but it contains ROS and active biomolecules. MOE and MOE+AgNPs exerted mild antibacterial action and increased the number of apoptotic cells and p53 protein expression of HT-29 colon cancer cells. MOE and MOE+AgNPs could arrest HT-29 cells at G2/M phase and stimulate splenic cell growth. Both extract preparations showed antioxidant activities. Because MOE and MOE+AgNP stimulated immune cells and activated apoptosis in cancer cells, these preparations can be utilized as anticancer agents.


Asunto(s)
Neoplasias del Colon , Nanopartículas del Metal , Moringa oleifera , Extractos Vegetales , Plata , Neoplasias del Colon/tratamiento farmacológico , Células HT29 , Humanos , Moringa oleifera/química , Extractos Vegetales/farmacología , Hojas de la Planta/química , Especies Reactivas de Oxígeno , Plata/farmacología
4.
Plants (Basel) ; 10(7)2021 Jul 01.
Artículo en Inglés | MEDLINE | ID: mdl-34371552

RESUMEN

Heavy metals are primarily generated and deposited in the environment, causing phytotoxicity. This work evaluated fenugreek plants' morpho-physiological and biochemical responses under mercury stress conditions toward Ag nanoparticles and Sphingobacterium ginsenosidiumtans applications. The fabrication of Ag nanoparticles by Thymus vulgaris was monitored and described by UV/Vis analysis, FTIR, and SEM. The effect of mercury on vegetative growth was determined by measuring the root and shoots length, the number and area of leaves, the relative water content, and the weight of the green and dried plants; appraisal of photosynthetic pigments, proline, hydrogen peroxide, and total phenols content were also performed. In addition, the manipulation of Ag nanoparticles, S. ginsenosidiumtans, and their combination were tested for mercury stress. Here, Ag nanoparticles were formed at 420 nm with a uniform cuboid form and size of 85 nm. Interestingly, the gradual suppression of vegetal growth and photosynthetic pigments by mercury, Ag nanoparticles, and S. ginsenosidiumtans were detected; however, carotenoids and anthocyanins were significantly increased. In addition, proline, hydrogen peroxide, and total phenols content were significantly increased because mercury and S. ginsenosidiumtans enhance this increase. Ag nanoparticles achieve higher levels by the combination. Thus, S. ginsenosidiumtans and Ag nanoparticles could have the plausible ability to relieve and combat mercury's dangerous effects in fenugreek.

5.
Sci Rep ; 11(1): 14926, 2021 07 21.
Artículo en Inglés | MEDLINE | ID: mdl-34290350

RESUMEN

Infection with SARS-CoV-2, the Betacoronavirus, caused a pandemic that affected the globe negatively. The gold method, RT-PCR, can detect SARS-CoV-2 but it is time-consuming and needs sophisticated equipment and professional personnel. On the other hand, rapid tests offer fast results and can detect anti-SARS-CoV-2 antibodies (Abs). The aim of this study is to develop a new rapid and cost-effective method for the detection of anti-SARS-CoV-2 IgG/IgM Abs. A new top-loading detection device was developed and composed of a small piece of plastic (25 × 25 × 0.5 mm) with an opening in the center, a piece of nitrocellulose (NC) membrane enough to block the opening from one side and adhesive tape to affix the NC to the plastic piece. The NC is blotted with anti-human IgG/IgM and rabbit serum. The device was evaluated against a commercially available IgG/IgM ELISA detection kit using normal, Covid-19-positive, HCV, HBV, and Cytomegalovirus-positive sera. Outcomes demonstrated simplicity, reproducibility, and accuracy of the new device and results can be obtained in less than 5 min. We anticipate our developed assay method to be used widely in point of care before deciding on the use of expensive nucleic acid assays.


Asunto(s)
COVID-19/diagnóstico , Inmunoensayo/métodos , SARS-CoV-2/inmunología , Anticuerpos Antivirales/sangre , Anticuerpos Antivirales/inmunología , COVID-19/sangre , COVID-19/inmunología , Análisis Costo-Beneficio , Ensayo de Inmunoadsorción Enzimática , Humanos , Inmunoensayo/instrumentación , Inmunoglobulina G/sangre , Inmunoglobulina G/inmunología , Inmunoglobulina M/sangre , Inmunoglobulina M/inmunología , Pruebas en el Punto de Atención , Reproducibilidad de los Resultados , Sensibilidad y Especificidad
6.
Saudi J Biol Sci ; 28(8): 4677-4682, 2021 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-33967583

RESUMEN

The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)-infected persons could be symptomatic or asymptomatic. Asymptomatic and symptomatic patients can transmit SARS-CoV-2. This study aimed to study the humoral immune response in Saudis who are Covid-19 symptomatic and asymptomatic patients. We created three types of enzyme-linked immunosorbant assays (ELISAs) to reveal IgG and IgM antibodies (Abs) against SARS-CoV-2. The developed ELISAs were designed to detect Abs against SARS-CoV-2 N, S and N + S proteins. A number of Covid-19 symptomatic (1 5 3) and asymptomatic (84) RT-PCR-confirmed patient sera were used to evaluate the ELISAs and to determine the IgG and IgM antibody profile in those patients. The sensitivity and specificity of these ELISAs were evaluated using pre-Covid-19 pandemic serum samples. The results revealed the existence of anti-SARS-CoV-2 IgG and IgM Abs in Covid-19 symptomatic and asymptomatic Saudi persons. The use of SARS-CoV-2 N and S proteins in the same ELISA greatly increased the detectability of infection. In conclusion, the Covid-19 symptomatic and asymptomatic Saudi persons demonstrated both IgG and IgM antibody profile with higher titer in symptomatic patients. The use of N + S proteins as antibody capture antigens greatly increased the ELISA sensitivity.

7.
Plants (Basel) ; 10(4)2021 Apr 16.
Artículo en Inglés | MEDLINE | ID: mdl-33923824

RESUMEN

They were shifting in land use increases salinity stress, significant abiotic stress affecting plant growth, limiting crop productivity. This work aimed to improve Linum usitatissimum L. (linseed) growth under salinity using Comamonas testosteroni and silver nanoparticles (AgNPs). AgNPs were fabricated exploiting Rosmarinus officinalis and monitored by U.V./Vis spectrophotometry scanning electron microscopy (SEM) and Fourier transforms infrared spectroscopy (FTIR). Photosynthetic pigments, enzymatic and nonenzymatic antioxidants of linseed were investigated under salt stress in treated and untreated plants with C. testosteroni alongside AgNPs. Our findings recorded the formation of AgNPs at 457 nm, which were globular and with a diameter of 75 nm. Notably, chlorophyll-a, b, and total chlorophyll reduction while enhanced carotenoids and anthocyanin contents were attained under salinity stress. Total dissoluble sugars, proline, and dissoluble proteins, H2O2, malondialdehyde, enzymatic and nonenzymatic antioxidants were significantly elevated in NaCl well. Combined AgNPs and C. testosteroni elevated photosynthetic pigments. Also, they led to the mounting of soluble sugars, proline, and soluble proteins. H2O2 and malondialdehyde decreased while enzymatic and nonenzymatic antioxidants increased in response to AgNPs, C. testosteroni, and their combination. Thus, AgNPs and C. testosteroni might bio-fertilizers to improve linseed crop productivity under salinity stress.

8.
J King Saud Univ Sci ; 33(4): 101439, 2021 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-33879983

RESUMEN

By the end of year 2019, the new virus SARS-CoV-2 appeared, causing the Coronavirus Disease 2019 (COVID-19), and spread very fast globally. A continuing need for diagnostic tools is a must to contain its spread. Till now, the gold standard method, the reverse transcription polymerase chain reaction (RT-PCR), is the precise procedure to detect the virus. However, SARS-CoV-2 may escape RT-PCR detection for several reasons. The development of well-designed, specific and sensitive serological test like enzyme immunoassay (EIA) is needed. This EIA can stand alone or work side by side with RT-PCR. In this study, we developed several EIAs including plates that are coated with either specially designed SARS-CoV-2 nucleocapsid or surface recombinant proteins. Each protein type can separately detect anti-SARS-CoV-2 IgM or IgG antibodies. For each EIAs, the cut-off value, specificity and sensitivity were determined utilizing RT-PCR confirmed Covid-19 and pre-pandemic healthy and other viruses-infected sera. Also, the receiver operator characteristic (ROC) analysis was performed to define the specificities and sensitivities of the optimized assay. The in-house EIAs were validated by comparing against commercial EIA kits. All in-house EIAs showed high specificity (98-99%) and sensitivity (97.8-98.9%) for the detection of IgG/IgM against RBD and N proteins of SARS-CoV-2. From these results, the developed Anti-RBD and anti-N IgG and IgM antibodies EIAs can be used as a specific and sensitive tool to detect SARS-CoV-2 infection, calculate the burden of disease and case fatality rates.

9.
Mater Sci Eng C Mater Biol Appl ; 122: 111898, 2021 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-33641901

RESUMEN

This research, for the first time, report the synthesis of core-shell magnetic nanoparticles (NPs) consisting poly acrylic acid (PAA) coated cobalt ferrite (CF) using a simple co-precipitation route. Nanocrystalline PAA@CF-NPs, particle size of 9.2 nm, exhibited saturation magnetization as 28.9 emu/g, remnant magnetization as 8.37 emu/g, and coercivity as 543 Oe. Keeping biomedical applications into consideration, PAA@CF-NPs were further analysed to evaluate antimicrobial performance against Gram positive (Staphylococcus aureus and Bacillus subtilis) and Gram negative (Pseudomonas aeruginosa and Escherichia coli) bacteria, and biocompatibility with reference to activated splenic cells. The PAA@CF-NPs were viable to the normal splenic cells (up to 1000 µg/ml) and do not affect the ability of fast dividing ability of the cells (activated splenic cells). An optimized dose of PAA@CF-NPs was intramuscularly administrated (100 µg/ml) into Albino mice to evaluate acute toxicity. The results of these studies suggest that injected PAA@CF-NPs do not affect vital organs mainly including liver and kidneys that confirmed the heptic/renal biocompatibility. The outcomes of this research project such developed nano-system for biomedical applications, mainly for magnetically guided drug delivery and image guided therapies development. However, to support the proposed claims, extended in-vivo studies are required to explore bio-distribution, chronic toxicity, and homeostatic conditions.


Asunto(s)
Antiinfecciosos , Nanopartículas de Magnetita , Nanopartículas , Animales , Cobalto , Compuestos Férricos , Nanopartículas de Magnetita/toxicidad , Ratones , Tamaño de la Partícula
10.
Adm Policy Ment Health ; 48(1): 121-130, 2021 01.
Artículo en Inglés | MEDLINE | ID: mdl-32424452

RESUMEN

To identify whether medical homes in FQHCs have advantages over other group and individual medical practices in caring for people with severe mental illness. Models estimated the effect of the type of medical home on monthly service utilization, medication adherence, and total Medicaid spending over a 4-year period for adults aged 18 or older with a major depressive disorder (N = 65,755), bipolar disorder (N = 19,925), or schizophrenia (N = 8501) enrolled in North Carolina's Medicaid program. Inverse probability of treatment weights (IPTW) were used to adjust for nonrandom assignment of patients to practices. Generalized estimating equations for repeated measures were used with gamma distributions and log links for the continuous measures of medication adherence and spending, and binomial distributions with logit links for binary measures of any outpatient or any emergency department visits. Adults with major depression or bipolar disorders in FQHC medical homes had a lower probability of outpatient service use than their counterparts in individual and group practices. The probability of emergency department use, medication adherence, and total Medicaid spending were relatively similar across the three settings. This study suggests that no one type of medical practice setting-whether FQHC, other group, or individual-consistently outperforms the others in providing medical home services to people with severe mental illness.


Asunto(s)
Trastorno Depresivo Mayor , Trastornos Mentales , Adulto , Trastorno Depresivo Mayor/tratamiento farmacológico , Servicio de Urgencia en Hospital , Humanos , Medicaid , Trastornos Mentales/tratamiento farmacológico , Atención Dirigida al Paciente , Estados Unidos
11.
Psychiatr Q ; 92(1): 107-122, 2021 03.
Artículo en Inglés | MEDLINE | ID: mdl-32468400

RESUMEN

Patient-centered medical homes based at federally-qualified health centers (FQHCs) can benefit patients with complex health needs, such as severe mental illness (SMI). However, little is known about FQHC characteristics associated with changes in health care expenditures and utilization for individuals with SMI. Using North Carolina Medicaid claims and FQHC data from the Uniform Data System, multivariate regression identified FQHC characteristics associated with total expenditures, medication adherence and emergency department utilization among adults with SMI, controlling for time-invariant differences by health center. Few of the FQHC-level factors affected the outcomes-not even offering on-site behavioral health services. Although the FQHCs in the analysis sample exhibited considerable variation in the provision of specialty behavioral services and in staffing configurations, it may be the case that the examination of average effects across a heterogeneous group of adults with SMI mask benefits of FQHCs to certain subgroups. These findings support the conclusion that there is no "one-size-fits-all" model that works best for this diverse patient population. Study results are relevant for practices embarking on expanded medical home services for people with SMI.


Asunto(s)
Trastornos Mentales/psicología , Trastornos Mentales/terapia , Atención Dirigida al Paciente/organización & administración , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Trastorno Bipolar , Trastorno Depresivo Mayor , Servicio de Urgencia en Hospital , Femenino , Humanos , Masculino , Medicaid , Persona de Mediana Edad , Esquizofrenia , Estados Unidos , Adulto Joven
12.
Acta Parasitol ; 65(3): 652-660, 2020 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-32240492

RESUMEN

PURPOSE: Schistosomiasis is a disease that afflicts over 220 million people worldwide. To date, there is no vaccine against schistosomiasis and chemotherapy relies basically on a single drug, praziquantel. The current study was undertaken to investigate the therapeutic effects of monophosphoryl lipid A (MPLA) as an adjuvant in soluble egg antigen (SEA)-vaccinated and Schistosoma mansoni-infected mice. METHODS: Mice were divided into two groups of uninfected and Schistosoma mansoni infected. The two groups were treated differently with MPLA, SEA and praziquantel. Study parameters included parasitological, immunological and biochemical parameters. RESULTS: Parasitological parameters revealed that intraperitoneal injection of MPLA into SEA-vaccinated and S. mansoni-infected mice was effective in reducing the worm and egg burden, granuloma count and diameter as well as the total area of infection in their livers versus SEA-untreated but infected ones. In addition, MPLA showed ameliorative action on the elevated liver oxidative stress marker, including malondialdehyde (MDA) and a decrease in the level of the antioxidant enzymes, reduced glutathione (GSH) and catalase (CAT) which may have a role in the liver damage and fibrosis due to S. mansoni infection. CONCLUSION: Treatment with MPLA has multi-functions in attenuating the deleterious impacts of S. mansoni infection in mice livers. Its effects are mediated through a reduction of ova count, worm burden, granuloma diameter and amelioration of antioxidant defense systems, and liver function biomarkers.


Asunto(s)
Adyuvantes Inmunológicos/administración & dosificación , Lípido A/análogos & derivados , Esquistosomiasis mansoni/inmunología , Esquistosomiasis mansoni/prevención & control , Receptores Toll-Like/agonistas , Animales , Antihelmínticos/uso terapéutico , Antígenos Helmínticos/administración & dosificación , Antígenos Helmínticos/inmunología , Proteínas del Helminto/administración & dosificación , Proteínas del Helminto/inmunología , Lípido A/administración & dosificación , Lípido A/inmunología , Masculino , Ratones , Praziquantel/uso terapéutico , Schistosoma mansoni , Vacunación
13.
Food Sci Nutr ; 8(1): 445-455, 2020 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-31993170

RESUMEN

Sidr honey is used as food and medicine in many countries. Study of immunomodulatory and anticancer activity of Sidr honey did not tested before. The aim of this work was to study the anticancer activity and immunomodulatory as well as antimicrobial potential of Sidr honey and its synthesized silver nanoparticles (AgNPs). Sidr honey from three sources (two from Kingdom of Saudi Arabia (KSA) and one from Pakistan) was diluted to 20% and tested for its biological activities and to synthesize AgNPs. The results demonstrated that honeys could produce AgNPs (spherical shape), modulated the growth of normal splenic cells, and have antimicrobial activities. Sidr honey has anticancer activity against HepG2 but not Hela cells. Sidr honey can be used as antimicrobial agent, but can be used as anticancer agent with care as it stimulated cell growth of some lines (e.g., Hala) and inhibited another (e.g., HepG2).

14.
Saudi J Biol Sci ; 26(7): 1676-1681, 2019 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-31762643

RESUMEN

One of the mosquito-borne zoonotic diseases is the Rift Valley fever virus (RVFV). Currently, there is no completely licensed vaccine that can be used to vaccinate animals or humans outside endemic areas. The aim of this work was to use the RVFV glycoprotein (Gn) and the subunit B of cholera toxin (CTB) at gene level and build up fused recombinant vaccine. The gene of CTB was joined to the gene Gn to work as an adjuvant in the resulting fusion protein. The designed merged genes (CTB-Gn) was tested for restriction sites, open reading frames, expected fusion protein tertiary structure and antigenicity using computer software. The insert sequence was submitted to the BioProject (GenBank). The insert was subcloned into the pQE-31 expression plasmid. The target recombinant protein (rCTB-Gn) was expressed in M15 bacteria, purified and identified by protein gel electrophoresis. The insert got the accession No: PRJNA386723. Analysis of the designed rCTB-Gn protein revealed that it had the right 3D structure, immunogenic and at the correct molecular weight. The presence of the CTB in the proposed vaccine will augment its immunogenicity. Doses and protection levels of the vaccine need to be manipulated.

15.
Saudi J Biol Sci ; 26(7): 1689-1694, 2019 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-31762645

RESUMEN

Juniperus spp. are used as medicinal plants in many countries like Bosnia, Lebanon, and Turkey. In folk medicines, these plants have been used for treating skin and respiratory tract diseases, urinary problems, rheumatism and gall bladder stones. The objectives of this work were to synthesize silver nanoparticles (AgNPs) using a coniferous tree, Juniperus procera leaf extract and testing the synthesized AgNPs for its antimicrobial potentials, hemolytic activity, toxicity and the proliferative effects against normal and activated rat splenic cells. Leaf extract was prepared using acetone and ethanol as solvents. AgNPs were prepared using the acetone extract. AgNPs were validated using UV-Vis spectroscopy and scanning electron microscopy (SEM). Functional groups in the extract were identified using Fourier Transform Infrared (FT-IR) spectroscopy. SEM images of AgNPs showed spherical and cubic shapes with a uniform size distribution with an average size of 30-90 nm. FT-IR spectroscopy showed the presence of many functional groups in the plant extract. AgNPs showed promising antimicrobial activity against tested bacteria and fungus. AgNPs also expressed a stimulating activity towards the rat splenic cells in a dose dependent manner. Acetone as solvent was safer on cells than ethanol. Green synthesized AgNPs using J. procera might be used as a broad-spectrum therapeutic agent against microorganisms and as an immunostimulant agent.

16.
Saudi J Biol Sci ; 26(7): 1716-1723, 2019 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-31762649

RESUMEN

Natural products, including their purified materials, play a remarkable role in drug development. The Euphorbiaceae family, mainly Euphorbia tirucalli, is used in some traditional medicine, and has evidence that its latex comprises immunomodulatory properties and cytokine production. This study aimed to measure the in vivo production of chemokines (IL-1α, IL-1ß, IL-12, and RANTES), TH1 cytokines (IFN-γ, TNF-α, GM-CSF, and IL-2) and TH2 cytokines (IL-4, IL-6, IL-10, and IL-13) in rats after treatments with ethanol latex extract of E. tirucalli. Vaccine treated and untreated rats were divided into seven groups to assess antimicrobial activities of the extracted components. After completion of the treatment schedule, blood was withdrawn and sera were collected. The results showed that the main component of the extract was a euphol compound. The extract showed antimicrobial activity and had the ability to modulate innate and adaptive immunity. Animals treated with extract for only 7 days before vaccination showed higher levels of antibody production. The extract showed antibacterial and antifungal activities. The extract could stimulate both adaptive and innate immunity. Pre-treatment with the extract increased immune responses in vaccinated animals, indicating the usefulness of the extract before immunization.

17.
Exp Parasitol ; 194: 53-59, 2018 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-30266572

RESUMEN

Schistosomiasis is a fatal disease that has a negative impact on health and economics. Praziquantel (PZQ) is the drug of choice for schistosomiasis treatment, but it has no prophylactic effect; therefore, vaccination is an essential requirement in schistosomiasis control. This work was carried out to investigate the possible effect of DNA vaccination against Schistosoma mansoni infection using recombinant S. mansoni fatty acid binding protein (rsmFABP). The smFABP gene was cloned into the eukaryotic expression vector pcDNAI/Amp in order to obtain an smFABP-pcDNAI recombinant plasmid (DNA vaccine) and was used for the intramuscular DNA vaccination of out-bread Swiss albino mice prior to infection with S. mansoni cercariae. Infected groups, either DNA vaccinated or unvaccinated, were treated with PZQ at week 6 post-infection. After 8 weeks post-infection, all mouse groups were sacrificed and parasitological, immunological and histopathological parameters were studied. DNA vaccinated mice showed a high titer of anti-smFABP-IgG antibodies and acquired significant protection (74.2%, p < 0.01) against S. mansoni infection, with a reduction in ova and granuloma counts. DNA vaccinated and PZQ treated animals had higher titers of anti-smFABP-IgG antibodies and decreased (87%, P < 0.001) parenchymal granulomas compared to the DNA vaccinated PZQ untreated group. Infected mice, either non DNA vaccinated or vaccinated, had very high collagen content and fibrous granulomas (74%) compared to the PZQ treated group (10.3% fibrous granuloma) and PZQ treated + DNA vaccinated group (0% fibrous granuloma). In conclusion, DNA vaccination had protective and anti-pathological effects in naive mice and greatly improved the pathological status in PZQ-treated animals, suggesting an immunological and pathological modulating effect of PZQ treatment.


Asunto(s)
Proteínas de Unión a Ácidos Grasos/genética , Proteínas del Helminto/genética , Schistosoma mansoni/inmunología , Esquistosomiasis mansoni/prevención & control , Vacunas de ADN , Secuencia de Aminoácidos , Animales , Biomphalaria , Cricetinae , Proteínas de Unión a Ácidos Grasos/química , Proteínas de Unión a Ácidos Grasos/inmunología , Femenino , Proteínas del Helminto/química , Proteínas del Helminto/inmunología , Hígado/patología , Mesocricetus , Ratones , Vacunas de ADN/administración & dosificación
18.
Med Care ; 56(10): 870-876, 2018 10.
Artículo en Inglés | MEDLINE | ID: mdl-30211809

RESUMEN

BACKGROUND: The complex nature of managing care for people with severe mental illness (SMI), including major depression, bipolar disorder, and schizophrenia, is a challenge for primary care practices, especially in rural areas. The team-based emphasis of medical homes may act as an important facilitator to help reduce observed rural-urban differences in care. OBJECTIVE: The objective of this study was to examine whether enrollment in medical homes improved care in rural versus urban settings for people with SMI. RESEARCH DESIGN: Secondary data analysis of North Carolina Medicaid claims from 2004-2007, using propensity score weights and generalized estimating equations to assess differences between urban, nonmetropolitan urban and rural areas. SUBJECTS: Medicaid-enrolled adults with diagnoses of major depressive disorder, bipolar disorder or schizophrenia. Medicare/Medicaid dual eligibles were excluded. MEASURES: We examined utilization measures of primary care use, specialty mental health use, inpatient hospitalizations, and emergency department use and medication adherence. RESULTS: Rural medical home enrollees generally had higher primary care use and medication adherence than rural nonmedical home enrollees. Rural medical home enrollees had fewer primary care visits than urban medical home enrollees, but both groups were similar on the other outcome measures. These findings varied somewhat by SMI diagnosis. CONCLUSIONS: Findings indicate that enrollment in medical homes among rural Medicaid beneficiaries holds the promise of reducing rural-urban differences in care. Both urban and rural medical homes may benefit from targeted resources to help close the remaining gaps and to improve the success of the medical home model in addressing the health care needs of people with SMI.


Asunto(s)
Trastornos Mentales/terapia , Aceptación de la Atención de Salud/estadística & datos numéricos , Atención Dirigida al Paciente/estadística & datos numéricos , Cumplimiento y Adherencia al Tratamiento/estadística & datos numéricos , Adulto , Femenino , Humanos , Masculino , Medicaid/estadística & datos numéricos , Trastornos Mentales/epidemiología , Trastornos Mentales/psicología , Persona de Mediana Edad , North Carolina/epidemiología , Población Rural/estadística & datos numéricos , Estados Unidos , Población Urbana/estadística & datos numéricos
19.
Health Serv Res ; 52(5): 1858-1880, 2017 10.
Artículo en Inglés | MEDLINE | ID: mdl-27766621

RESUMEN

OBJECTIVE: To examine whether medical homes have heterogeneous effects in different subpopulations, leveraging the interpretations from a variety of statistical techniques. DATA SOURCES/STUDY SETTING: Secondary claims data from the NC Medicaid program for 2004-2007. The sample included all adults with diagnoses of schizophrenia, bipolar disorder, or major depression who were not dually enrolled in Medicare or in a nursing facility. STUDY DESIGN: We modeled a number of monthly service use, adherence, and expenditure outcomes using fixed effects, generalized estimating equation with and without inverse probability of treatment weights, and instrumental variables analyses. DATA COLLECTION: Data were received from the Carolina Cost and Quality Initiative. PRINCIPAL FINDINGS: The four estimation techniques consistently revealed generally positive associations between medical homes and access to primary care, specialty mental health care, greater medication adherence, slightly lower emergency room use, and greater expenditures. These findings were consistent across all three major severe mental illness diagnostic groups. Some heterogeneity in effects were noted, especially in preventive screening. CONCLUSIONS: Expanding access to primary care-based medical homes for people with severe mental illness may not save money for insurance providers, due to greater access for important outpatient services with little cost offset. Health services research examining more of the treatment heterogeneity may contribute to more realistic projections about medical homes outcomes.


Asunto(s)
Medicaid/estadística & datos numéricos , Trastornos Mentales/terapia , Atención Dirigida al Paciente/estadística & datos numéricos , Atención Primaria de Salud/estadística & datos numéricos , Adulto , Trastorno Bipolar/terapia , Trastorno Depresivo Mayor/terapia , Detección Precoz del Cáncer/estadística & datos numéricos , Servicio de Urgencia en Hospital/estadística & datos numéricos , Femenino , Investigación sobre Servicios de Salud , Humanos , Masculino , Cumplimiento de la Medicación/estadística & datos numéricos , Servicios de Salud Mental/estadística & datos numéricos , Persona de Mediana Edad , Atención Dirigida al Paciente/organización & administración , Atención Primaria de Salud/organización & administración , Esquizofrenia/terapia , Factores Socioeconómicos , Estados Unidos
20.
Mater Sci Eng C Mater Biol Appl ; 72: 472-480, 2017 Mar 01.
Artículo en Inglés | MEDLINE | ID: mdl-28024611

RESUMEN

In this work, the authors have fabricated the nanorods and nanosheets of pure and Te-doped HAp with different Te concentrations (0.04, 0.08, 0.16, 0.24wt%) by microwave-assisted technique at low temperature. The crystallite size, degree of crystallinity and lattice parameters are calculated. FE-SEM study confirms that the fabricated nanostructures are nanorods of diameter about 10nm in undoped and at low concentration of Te doping. However, at and higher concentration, it becomes nanosheets of about 5nm thickness. X-ray diffraction, FT-IR and FT-Raman studies shows that the prepared products are of HAp and Te has been successfully incorporated. From EDX the Ca/P molar ratio of the pure HAp is about 1.740, while this ratio for 0.04, 0.08, 0.16, 0.24 wt% Te doped is about 1.53, 1.678, 1.724, 1.792, respectively. Crystallite size was found to be increased with Te doping from 15nm to 62nm. The value of dielectric constant is found to be enhanced at higher concentrations of Te. The values of linear absorption coefficient were also determined and show that the prepared material with Te doping is more absorbable than pure and will be highly applicable in radiation detection applications. Furthermore, the antimicrobial potential of pure and Te doped HAp was examined against some Gram- negative and positive bacteria and fungi by agar disk diffusion method. The results demonstrated that the antimicrobial activity of Te doped HAp is stronger than that of pure HAp where it exhibited the highest activity against Bacillus subtilis>Candida albicans>Shigella dysenteriae.


Asunto(s)
Cementos para Huesos/química , Durapatita/química , Microondas , Nanoestructuras/química , Nanotubos/química , Cementos para Huesos/farmacología , Conductividad Eléctrica , Bacterias Gramnegativas/efectos de los fármacos , Bacterias Grampositivas/efectos de los fármacos , Espectroscopía Infrarroja por Transformada de Fourier , Telurio/química , Difracción de Rayos X
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