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1.
PLoS One ; 19(5): e0303289, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38722891

RESUMEN

Malaria and Human Immunodeficiency Virus infections are among the top 10 causes of death in low income countries. Furthermore, many medicines used in these treatment areas are substandard, which contributes to the high death rate. Using a monitoring system to identify substandard and falsified medicines, the study aims to evaluate the quality of antimalarial and antiretroviral medicines in Sahel countries, assessing site conditions, compliance of medicines with pharmacopoeia tests, formulation equivalence with a reference medicine, and the influence of climate on quality attributes. Ultra Performance Liquid Chromatography methods for eight active pharmaceutical ingredients were validated following the International Conference for Harmonization guideline for its detection and quantification. Quality control consists of visual inspections to detect any misinformation or imperfections and pharmacopeial testing to determine the quality of pharmaceutical products. Medicines which complied with uniformity dosage units and dissolution tests were stored under accelerated conditions for 6 months. Artemether/Lumefantrine and Lopinavir/Ritonavir formulations failed uniformity dosage units and disintegration tests respectively, detecting a total of 28.6% substandard medicines. After 6 months stored under accelerated conditions (40 °C // 75% relative humidity) simulating climatic conditions in Sahel countries, some medicines failed pharmacopeia tests. It demonstrated the influence of these two factors in their quality attributes. This study emphasizes the need of certified quality control laboratories as well as the need for regulatory systems to maintain standards in pharmaceutical manufacturing and distribution in these countries, especially when medicines are transported to rural areas where these climatic conditions are harsher.


Asunto(s)
Antimaláricos , Control de Calidad , Antimaláricos/análisis , Antimaláricos/normas , Humanos , Antirretrovirales/análisis , Salud Pública , Ritonavir/análisis , Ritonavir/uso terapéutico , Administración Oral , Medicamentos de Baja Calidad/análisis , Infecciones por VIH/tratamiento farmacológico , Malaria/tratamiento farmacológico , Lopinavir/análisis , Lopinavir/uso terapéutico
2.
BMC Pregnancy Childbirth ; 24(1): 311, 2024 May 09.
Artículo en Inglés | MEDLINE | ID: mdl-38724897

RESUMEN

AIM: The purpose of this study is to evaluate the oral probiotic effect on pregnancy outcomes in pregnant women undergoing cerclage compared to placebo. METHODS: This study was a double-blind randomized clinical trial undertaken in Yasuj, Iran. 114 eligible participants who have undergone cerclage were randomly divided to either receive probiotic adjuvant or 17α-OHP (250 mg, IM) with placebo from the 16th -37th week of pregnancy by "block" randomization method. Our primary outcomes were preterm labor (PTB) (late and early) and secondary outcomes were other obstetrical and neonatal outcomes included preterm pre-labor rupture of membranes (PPROM), pre-labor rupture of membranes (PROM), mode of delivery, and neonatal outcomes including anthropometric characterize and Apgar score (one and fifth-minute). RESULTS: Results show that there are no statistically significant differences between the two groups in terms of PTB in < 34th (15.51% vs. 17.86%; P = 0.73) and 34-37th weeks of pregnancy (8.7% vs. 16.1%; P = 0.22), and mode of delivery (P = 0.09). PPROM (8.7% vs. 28.5%; P = 0.006) PROM (10.3% vs. 25%; P = 0.04) was significantly lower in patients receiving probiotic adjuvant compared to the control group. After delivery, the findings of the present study showed that there were no significant differences in newborn's weight (3082.46 ± 521.8vs. 2983.89 ± 623.89), head circumstance (36.86 ± 1.53vs. 36.574 ± 1.52), height (45.4 ± 5.34 vs. 47.33 ± 4.92) and Apgar score in one (0.89 ± 0.03 vs. 0.88 ± 0.05) and five minutes (0.99 ± 0.03vs. 0.99 ± 0.03) after birth. CONCLUSION: Our result has shown that the consumption of Lactofem probiotic from the 16th week until 37th of pregnancy can lead to a reduction of complications such as PPROM and PROM.


Asunto(s)
Cerclaje Cervical , Resultado del Embarazo , Probióticos , Humanos , Embarazo , Femenino , Probióticos/uso terapéutico , Probióticos/administración & dosificación , Método Doble Ciego , Adulto , Irán , Cerclaje Cervical/métodos , Recién Nacido , Rotura Prematura de Membranas Fetales , Adulto Joven , Nacimiento Prematuro/prevención & control , Trabajo de Parto Prematuro/prevención & control , Administración Oral
3.
Sci Rep ; 14(1): 10680, 2024 05 09.
Artículo en Inglés | MEDLINE | ID: mdl-38724608

RESUMEN

Bosentan is a drug used to treat pulmonary hypertension via dual endothelial receptor antagonism. Bosentan has a restricted oral bioavailability, a problem that's mostly due to poor solubility and hepatic metabolism. It is extensively used for the elderly and children who require a friendly dosage form like orodispersible tablets. So, the goal of this research work was to hasten the dissolution rate of bosentan to produce an orodispersible tablet with immediate drug release. Bosentan was exposed to ethanol-assisted kneading with a rise of xylitol or menthol concentrations (1:1 and 1:2 molar ratio of bosentan with excipient). In addition to observing the dissolution behavior, the resulting dry products were investigated using Fourier transform infrared spectroscopy (FTIR), differential thermal analysis (DTA), and X-ray diffraction (XRD). The FTIR reflected possible hydrogen bonding with xylitol and menthol. DSC studies reflected a reduction in the enthalpy and Tm. These results with XRD data reflected partial co-amorphization in the case of xylitol and eutaxia in the case of menthol. These modifications were related to an accelerated dissolving rate. The developed systems were fabricated as orodispersible tablets which exhibited immediate release of bosentan. Thus, the current study offered simple co-processing for the preparation of orodispersible bosentan tablets.


Asunto(s)
Bosentán , Mentol , Solubilidad , Comprimidos , Xilitol , Bosentán/química , Xilitol/química , Mentol/química , Administración Oral , Espectroscopía Infrarroja por Transformada de Fourier , Liberación de Fármacos , Difracción de Rayos X , Excipientes/química , Humanos , Composición de Medicamentos/métodos , Rastreo Diferencial de Calorimetría
4.
Scand J Trauma Resusc Emerg Med ; 32(1): 42, 2024 May 10.
Artículo en Inglés | MEDLINE | ID: mdl-38730480

RESUMEN

BACKGROUND: Current guidelines from Scandinavian Neuro Committee mandate a 24-hour observation for head trauma patients on anticoagulants, even with normal initial head CT scans, as a means not to miss delayed intracranial hemorrhages. This study aimed to assess the prevalence, and time to diagnosis, of clinically relevant delayed intracranial hemorrhage in head trauma patients treated with oral anticoagulants. METHOD: Utilizing comprehensive two-year data from Region Skåne's emergency departments, which serve a population of 1.3 million inhabitants, this study focused on adult head trauma patients prescribed oral anticoagulants. We identified those with intracranial hemorrhage within 30 days, defining delayed intracranial hemorrhage as a bleeding not apparent on their initial CT head scan. These cases were further defined as clinically relevant if associated with mortality, any intensive care unit admission, or neurosurgery. RESULTS: Out of the included 2,362 head injury cases (median age 84, 56% on a direct acting oral anticoagulant), five developed delayed intracranial hemorrhages. None of these five cases underwent neurosurgery nor were admitted to an intensive care unit. Only two cases (0.08%, 95% confidence interval [0.01-0.3%]) were classified as clinically relevant, involving subdural hematomas in patients aged 82 and 87 years, who both subsequently died. The diagnosis of these delayed intracranial hemorrhages was made at 4 and 7 days following initial presentation to the emergency department. CONCLUSION: In patients with head trauma, on oral anticoagulation, the incidence of clinically relevant delayed intracranial hemorrhage was found to be less than one in a thousand, with detection occurring four days or later after initial presentation. This challenges the effectiveness of the 24-hour observation period recommended by the Scandinavian Neurotrauma Committee guidelines, suggesting a need to reassess these guidelines to optimise care and resource allocation. TRIAL REGISTRATION: This is a retrospective cohort study, does not include any intervention, and has therefore not been registered.


Asunto(s)
Anticoagulantes , Traumatismos Craneocerebrales , Hemorragias Intracraneales , Humanos , Anticoagulantes/administración & dosificación , Anticoagulantes/efectos adversos , Femenino , Estudios Retrospectivos , Masculino , Anciano de 80 o más Años , Hemorragias Intracraneales/epidemiología , Hemorragias Intracraneales/inducido químicamente , Traumatismos Craneocerebrales/complicaciones , Anciano , Prevalencia , Administración Oral , Sistema de Registros , Tomografía Computarizada por Rayos X/métodos , Suecia/epidemiología , Persona de Mediana Edad , Factores de Tiempo , Servicio de Urgencia en Hospital
5.
AAPS PharmSciTech ; 25(5): 107, 2024 May 10.
Artículo en Inglés | MEDLINE | ID: mdl-38730121

RESUMEN

Treatment therapies used to manage osteoporosis are associated with severe side effects. So worldwide herbs are widely studied to develop alternative safe & effective treatments. Cissus quadrangularis (CQ) has a significant role in bone health and fracture healing. It is documented that its extracts increase osteoblastic differentiation & mineralization. Currently, Cissus quadrangularis is available in the form of tablets in the market for oral delivery. But these conventional forms are associated with poor bioavailability. There is a need for a novel drug delivery system with improving oral bioavailability. Therefore, a Cissus quadrangularis-loaded self-emulsifying drug delivery system (CQ-SEDDS) was developed which disperses rapidly in the gastrointestinal fluids, yielding nano-emulsions containing a solubilized drug. This solubilized form of the drug can be easily absorbed through lymphatic pathways and bypass the hepatic first-pass effect. The emulsification efficiency, zeta potential, globule size, in-vitro dissolution, ex-vivo, in-vivo and bone marker studies were performed to assess the absorption and permeation potential of CQ incorporated in SEDDS. CQ-SEDDS with excipients Tween 80, Cremophor RH40, Transcutol HP & α-Tocopherol acetate had shown about 76% enhancement in the bioavailability of active constituents of CQ. This study provided the pre-clinical data of CQ-SEDDS using osteoporotic rat model studies.


Asunto(s)
Disponibilidad Biológica , Cissus , Sistemas de Liberación de Medicamentos , Emulsiones , Osteoporosis , Animales , Osteoporosis/tratamiento farmacológico , Ratas , Cissus/química , Sistemas de Liberación de Medicamentos/métodos , Femenino , Administración Oral , Excipientes/química , Solubilidad , Extractos Vegetales/farmacocinética , Extractos Vegetales/administración & dosificación , Extractos Vegetales/química , Tamaño de la Partícula , Ratas Sprague-Dawley
6.
BMJ Open ; 14(5): e079353, 2024 May 01.
Artículo en Inglés | MEDLINE | ID: mdl-38692712

RESUMEN

OBJECTIVES: To evaluate whether a focused, expert medication management intervention is feasible and potentially effective in preventing anticoagulation-related adverse events for patients transitioning from hospital to home. DESIGN: Randomised, parallel design. SETTING: Medical wards at six hospital sites in southern Ontario, Canada. PARTICIPANTS: Adults 18 years of age or older being discharged to home on an oral anticoagulant (OAC) to be taken for at least 4 weeks. INTERVENTIONS: Clinical pharmacologist-led intervention, including a detailed discharge medication management plan, a circle of care handover and early postdischarge virtual check-up visits to 1 month with 3-month follow-up. The control group received the usual care. OUTCOMES MEASURES: Primary outcomes were study feasibility outcomes (recruitment, retention and cost per patient). Secondary outcomes included adverse anticoagulant safety events composite, quality of transitional care, quality of life, anticoagulant knowledge, satisfaction with care, problems with medications and health resource utilisation. RESULTS: Extensive periods of restriction of recruitment plus difficulties accessing patients at the time of discharge negatively impacted feasibility, especially cost per patient recruited. Of 845 patients screened, 167 were eligible and 56 were randomised. The mean age (±SD) was 71.2±12.5 years, 42.9% females, with two lost to follow-up. Intervention patients were more likely to rate their ability to manage their OAC as improved (17/27 (63.0%) vs 7/22 (31.8%), OR 3.6 (95% CI 1.1 to 12.0)) and their continuity of care as improved (21/27 (77.8%) vs 2/22 (9.1%), OR 35.0 (95% CI 6.3 to 194.2)). Fewer intervention patients were taking one or more inappropriate medications (7 (22.5%) vs 15 (60%), OR 0.19 (95% CI 0.06 to 0.62)). CONCLUSION: This pilot randomised controlled trial suggests that a transitional care intervention at hospital discharge for older adults taking OACs was well received and potentially effective for some surrogate outcomes, but overly costly to proceed to a definitive large trial. TRIAL REGISTRATION NUMBER: NCT02777047.


Asunto(s)
Anticoagulantes , Alta del Paciente , Humanos , Anticoagulantes/administración & dosificación , Anticoagulantes/uso terapéutico , Anticoagulantes/efectos adversos , Anticoagulantes/economía , Femenino , Masculino , Anciano , Proyectos Piloto , Ontario , Persona de Mediana Edad , Administración Oral , Anciano de 80 o más Años , Estudios de Factibilidad , Calidad de Vida , Continuidad de la Atención al Paciente
7.
Front Immunol ; 15: 1373656, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38742108

RESUMEN

African swine fever virus (ASFV) is one of the most complex viruses. ASFV is a serious threat to the global swine industry because no commercial vaccines against this virus are currently available except in Vietnam. Moreover, ASFV is highly stable in the environment and can survive in water, feed, and aerosols for a long time. ASFV is transmitted through the digestive and respiratory tract. Mucosal immunity is the first line of defense against ASFV. Saccharomyces cerevisiae (SC), which has been certified by the U.S. Food and Drug Administration and has a generally recognized as safe status in the food industry, was used for oral immunization in this study. ASFV antigens were effectively expressed in recombinant SC strains with high DNA copy numbers and stable growth though surface display technology and chromosome engineering (δ-integration). The recombinant SC strains containing eight ASFV antigens-KP177R, E183L, E199L, CP204L, E248R, EP402R, B602L, and B646L- induced strong humoral and mucosal immune responses in mice. There was no antigenic competition, and these antigens induced Th1 and Th2 cellular immune responses. Therefore, the oral immunization strategy using recombinant SC strains containing multiple ASFV antigens demonstrate potential for future testing in swine, including challenge studies to evaluate its efficacy as a vaccine against ASFV.


Asunto(s)
Virus de la Fiebre Porcina Africana , Fiebre Porcina Africana , Antígenos Virales , Inmunización , Saccharomyces cerevisiae , Vacunas Virales , Animales , Virus de la Fiebre Porcina Africana/inmunología , Virus de la Fiebre Porcina Africana/genética , Saccharomyces cerevisiae/inmunología , Saccharomyces cerevisiae/genética , Administración Oral , Ratones , Vacunas Virales/inmunología , Vacunas Virales/administración & dosificación , Antígenos Virales/inmunología , Fiebre Porcina Africana/inmunología , Fiebre Porcina Africana/prevención & control , Porcinos , Inmunidad Mucosa , Anticuerpos Antivirales/sangre , Anticuerpos Antivirales/inmunología , Ratones Endogámicos BALB C , Femenino , Inmunidad Humoral
8.
Ophthalmol Retina ; 8(2): 204-206, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-38707762

RESUMEN

Oral ingestion of fluorescein can be done in ambulatory pediatric clinics. We show that oral ultra-widefield fluorescein angiography is a non-invasive approach to rapidly diagnose and manage a diverse set of pediatric retinal vascular diseases.


Asunto(s)
Angiografía con Fluoresceína , Fluoresceína , Fondo de Ojo , Enfermedades de la Retina , Humanos , Angiografía con Fluoresceína/métodos , Niño , Enfermedades de la Retina/diagnóstico , Fluoresceína/administración & dosificación , Masculino , Femenino , Adolescente , Vasos Retinianos/diagnóstico por imagen , Preescolar , Instituciones de Atención Ambulatoria , Administración Oral
9.
Adv Exp Med Biol ; 1447: 131-138, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38724790

RESUMEN

The treatment of atopic dermatitis (AD) with oral treatments has been limited in the past due to the increased risk of adverse effects associated with oral agents. However, in recent years, a shift toward the minimization of adverse effects has been explored. Although existing treatment options like oral corticosteroids and Immunosuppressive therapies have been utilized for acute flare-ups of AD, their long-term use is limited by adverse effects and the need for lab monitoring. New systemic treatment options such as Janus kinase (JAK) inhibitors are emerging as a promising therapy, due to their quick onset and antipruritic features. However, the black box warning associated with this medication class requires careful selection of appropriate candidates and patient education despite early favorable safety profiles seen in AD trials. Discussion of other oral agents, like antibiotics and antihistamines, and their role in AD management are also clarified.


Asunto(s)
Dermatitis Atópica , Humanos , Administración Oral , Dermatitis Atópica/tratamiento farmacológico , Antagonistas de los Receptores Histamínicos/uso terapéutico , Antagonistas de los Receptores Histamínicos/efectos adversos , Antibacterianos/efectos adversos , Antibacterianos/uso terapéutico , Inhibidores de las Cinasas Janus/uso terapéutico , Inhibidores de las Cinasas Janus/efectos adversos , Inmunosupresores/efectos adversos , Inmunosupresores/uso terapéutico , Corticoesteroides/uso terapéutico , Corticoesteroides/efectos adversos
10.
Pharmacoepidemiol Drug Saf ; 33(5): e5813, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38720425

RESUMEN

Direct oral anticoagulants (DOACs) revolutionized the management of thromboembolic disorders. Clinical care may be further improved as Factor XIs undergo large-scale outcome trials. What role can non-randomized database studies play in expediting understanding of these drugs in clinical practice? The RCT-DUPLICATIVE Initiative emulated the design of eight DOAC randomized clinical trials (RCT) using non-randomized claims database studies. RCT study design parameters and measurements were closely emulated by the database studies and produced highly concordant results. The results of the single database study that did not meet all agreement metrics with the specific RCT it was emulating were aligned with a meta-analysis of six trials studying similar questions, suggesting the trial result was an outlier. Well-designed database studies using fit-for-purpose data came to the same conclusions as DOAC trials, illustrating how database studies could complement RCTs for Factor XI inhibitors-by accelerating insights in underrepresented populations, demonstrating effectiveness and safety in clinical practice, and testing broader indications.


Asunto(s)
Anticoagulantes , Bases de Datos Factuales , Factor XI , Ensayos Clínicos Controlados Aleatorios como Asunto , Humanos , Administración Oral , Anticoagulantes/administración & dosificación , Anticoagulantes/uso terapéutico , Anticoagulantes/efectos adversos , Factor XI/antagonistas & inhibidores , Tromboembolia/prevención & control , Tromboembolia/tratamiento farmacológico , Proyectos de Investigación
11.
Int J Immunopathol Pharmacol ; 38: 3946320241249429, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38721971

RESUMEN

OBJECTIVE: This study investigated the raft-forming suspension of famotidine as an anti-reflux formulation to improve the oral bioavailability of narrow absorption window drugs by enhancing gastric residence time (GRT) and preventing gastro-esophageal reflux disease (GERD). METHOD: Various combinations of raft-forming agents, such as Tragacanth gum (TG), guar gum (GG), and xanthan gum (XG), were evaluated alongside sodium alginate (SA) to develop an effective raft. Preformulation studies and preliminary screening were conducted to identify the most suitable raft-forming agent, and GG was chosen due to its mucilaginous properties. The formulation was optimized using a 32 full factorial design, with the quantities of GG and SA as independent factors and apparent viscosity and in-vitro drug release (%) as dependent factors. The in vivo floating behavior study was performed for optimized and stabilized formulation. RESULTS: Among the tested batches, F6 was selected as the optimized formulation. It exhibited desirable characteristics such as adequate raft weight for extended floating in gastric fluid, improved apparent viscosity, and a significant percentage of drug release at 12 h. A mathematical model was applied to the in-vitro data to gain insights into the drug release mechanism of the formulation. The stability of the suspension was assessed under accelerated conditions, and it demonstrated satisfactory stability. The formulation remains floating in the Rabbit stomach for more than 12 h. CONCLUSION: It concludes that the developed formulation has enhanced bioavailability in the combination of GG and SA. The floating layer of the raft prevents acid reflux, and the famotidine is retained for an extended period of time in the gastric region, preventing excess acid secretion. The developed formulations are effective for stomach ulcers and GERD, with the effect of reducing acid secretion by H2 receptor antagonists.


Asunto(s)
Sistemas de Liberación de Medicamentos , Famotidina , Galactanos , Famotidina/administración & dosificación , Famotidina/farmacocinética , Animales , Sistemas de Liberación de Medicamentos/métodos , Liberación de Fármacos , Alginatos , Reflujo Gastroesofágico/tratamiento farmacológico , Reflujo Gastroesofágico/metabolismo , Disponibilidad Biológica , Mananos/administración & dosificación , Gomas de Plantas , Viscosidad , Masculino , Conejos , Mucosa Gástrica/metabolismo , Mucosa Gástrica/efectos de los fármacos , Polisacáridos Bacterianos , Estabilidad de Medicamentos , Administración Oral
12.
J Int AIDS Soc ; 27(5): e26249, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38695102

RESUMEN

INTRODUCTION: South African men face a substantial burden of HIV and are less likely to test for HIV and initiate antiretroviral therapy if tested positive and more likely to die from AIDS-related causes than women. In addition to condoms and circumcision, guidelines provide for the use of daily oral pre-exposure prophylaxis (PrEP) as an HIV prevention intervention for any men who recognize their need and request PrEP. However, heterosexual men have not been a focus of PrEP programmes, and since its introduction, there is limited literature on PrEP use among men in South Africa. This study explores the experiences, motivators and barriers to oral PrEP use among heterosexual men accessing primary healthcare services in South Africa. METHODS: This study forms part of a mixed-methods implementation science study aimed at generating evidence for oral PrEP introduction and conducted in primary healthcare clinics in South Africa since 2018. Men aged ≥15 years who initiated oral PrEP and enrolled in a parent cohort study were purposefully invited to participate in an in-depth interview (IDI). Between March 2020 and May 2022, 30 men participated in IDIs exploring their motivators for PrEP use, and experiences with accessing health services. Interviews were audio recorded, transcribed and analysed thematically. RESULTS: The final analysis included 28 heterosexual men (18-56 years old). Motivations to initiate PrEP included fear of acquiring HIV, self-perceived vulnerability to HIV and mistrust in relationships; health systems factors which motivated PrEP use included the influence of healthcare providers, educational materials and mobile services. Perceived reduction in HIV vulnerability and changing proximity to partners were reasons for PrEP discontinuation. Side effects, daily-pill burden and stigma were noted as challenges to PrEP use. Health system barriers to PrEP use included limited PrEP availability, school and work demands, and inconsistent mobile clinic schedules. CONCLUSIONS: Our study reports on the experiences of heterosexual men accessing oral PrEP in real-world settings and contributes to the limited literature among this population. We highlight multiple levels which could be strengthened to improve men's PrEP use, including individual support, education among partners and communities, and addressing health system barriers to access.


Asunto(s)
Infecciones por VIH , Heterosexualidad , Profilaxis Pre-Exposición , Investigación Cualitativa , Humanos , Masculino , Profilaxis Pre-Exposición/métodos , Sudáfrica , Adulto , Infecciones por VIH/prevención & control , Adulto Joven , Adolescente , Persona de Mediana Edad , Servicios de Salud Reproductiva , Fármacos Anti-VIH/uso terapéutico , Fármacos Anti-VIH/administración & dosificación , Aceptación de la Atención de Salud/estadística & datos numéricos , Administración Oral , Entrevistas como Asunto , Accesibilidad a los Servicios de Salud , Motivación
13.
Age Ageing ; 53(Supplement_2): ii70-ii79, 2024 May 11.
Artículo en Inglés | MEDLINE | ID: mdl-38745493

RESUMEN

This systematic review evaluated the impact of oral probiotics on the immune response to vaccination in older people. A literature search was performed in three electronic databases up to January 2023. Randomised controlled trials (RCTs) conducted in older people (age ≥ 60 years) investigating oral probiotics and vaccine response outcomes were included. Characteristics and outcome data of the included studies were extracted and analysed and study quality was assessed using the Cochrane Risk of Bias Tool for randomised trials. Ten RCTs involving 1,560 participants, reported in 9 papers, were included. Nine studies involved the seasonal influenza vaccine and one a COVID-19 vaccine. All studies used lactobacilli, some in combination with bifidobacteria. Studies reported outcomes including anti-vaccine antibody titres or concentrations, seroconversion and seroprotection. When comparing antibody titres, seroprotection rate and seroconversion rate between probiotic and placebo groups expressed as a response ratio, the weighted mean values were 1.29, 1.16 and 2.00, respectively. Meta-analysis showed that probiotics increase seroconversion rates to all three strains of the seasonal influenza vaccine: odds ratio (95% confidence interval) 2.74 (1.31, 5.70; P = 0.007) for the H1N1 strain; 1.90 (1.04, 3.44; P = 0.04) for the H3N2 strain; 1.72 (1.05, 2.80; P = 0.03) for the B strain. There was a low level of heterogeneity in these findings. Several studies were at high risk of bias due to missing outcome data. Lactobacilli may improve the vaccine response, but further research is needed to be more certain of this.


Asunto(s)
Vacunas contra la Influenza , Probióticos , Ensayos Clínicos Controlados Aleatorios como Asunto , Humanos , Probióticos/uso terapéutico , Probióticos/administración & dosificación , Anciano , Vacunas contra la Influenza/administración & dosificación , Vacunas contra la Influenza/inmunología , Administración Oral , Vacunas contra la COVID-19/administración & dosificación , Vacunas contra la COVID-19/inmunología , Vacunación/métodos , Persona de Mediana Edad , COVID-19/prevención & control , COVID-19/inmunología , Gripe Humana/prevención & control , Gripe Humana/inmunología , SARS-CoV-2/inmunología
14.
Chirality ; 36(5): e23669, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38747136

RESUMEN

The aim of this study was to investigate the chiral inversion and the stereoselective pharmacokinetic profiles of desmethyl-phencynonate hydrochloride after administration of the single isomer and its racemate to beagle dogs. A liquid chromatography with tandem mass spectrometry (LC-MS/MS) method was established for determination of the stereoisomers on chiral columns in beagle dog plasma, which met all the requirements. The chiral inversion in dogs of the desmethyl-phencynonate hydrochloride were studied after administration of the single isomer or the racemic modification. The stereoselective pharmacokinetic profiles of the desmethyl-phencynonate hydrochloride were studied by assays for simultaneous isomers after administration of the racemic modification. The results showed that the absorption of the R-configuration dosed as the single isomer was higher than it dosed as the racemic modification. The AUC(0-t), AUC(0-∞), and Cmax of the S-configuration were much higher than those of R-configuration after oral administration of the racemic desmethyl-phencynonate hydrochloride. The chiral inversion of desmethyl-phencynonate isomers could not occur in dogs after administration of the R-configuration.


Asunto(s)
Espectrometría de Masas en Tándem , Animales , Perros , Estereoisomerismo , Espectrometría de Masas en Tándem/métodos , Masculino , Cromatografía Liquida/métodos , Administración Oral , Área Bajo la Curva
15.
Clin Transl Sci ; 17(5): e13819, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38747478

RESUMEN

The equivalence of absorption rates and extents between generic drugs and their reference formulations is crucial for ensuring therapeutic comparability. Bioequivalence (BE) studies are widely utilized and play a pivotal role in substantiating the approval and promotional efforts for generic drugs. Virtual BE simulation is a valuable tool for mitigating risks and guiding clinical BE studies, thereby minimizing redundant in vivo BE assessments. Herein, we successfully developed a physiologically based absorption model for virtual BE simulations, which precisely predicts the BE of the apixaban test and reference formulations. The modeling results confirm that the test and reference formulations were bioequivalent under both fasted and fed conditions, consistent with clinical studies. This highlights the efficacy of physiologically based absorption modeling as a powerful tool for formulation screening and can be adopted as a methodological and risk assessment strategy to detect potential clinical BE risks.


Asunto(s)
Modelos Biológicos , Pirazoles , Piridonas , Equivalencia Terapéutica , Piridonas/farmacocinética , Piridonas/administración & dosificación , Pirazoles/farmacocinética , Pirazoles/administración & dosificación , Humanos , Inhibidores del Factor Xa/farmacocinética , Inhibidores del Factor Xa/administración & dosificación , Medicamentos Genéricos/farmacocinética , Medicamentos Genéricos/administración & dosificación , Simulación por Computador , Administración Oral , Masculino
16.
J Agric Food Chem ; 72(19): 11140-11152, 2024 May 15.
Artículo en Inglés | MEDLINE | ID: mdl-38703140

RESUMEN

Recently, oral deliverable strategies of multiple nutraceuticals for ulcerative colitis (UC) mitigation have attracted increasing attention. This study aimed to fabricate facile oral assemblies loaded with egg-white-derived peptides (EWDP) and curcumin based on carboxymethyl chitosan (CMCS) and an γ-cyclodextrin metal-organic framework (MOF). Herein, outer CMCS could coassemble with EWDP (both nutraceuticals and building blocks) into cobweb-like fibrils to promote bridging with inner MOF via coordinative noncovalent interactions (hydrogen bonding, hydrophobic interaction, and electrostatic interaction). Compared with conventional γ-cyclodextrin/MOF-based composites, the above coassembly could also endow the biocompatible assemblies with superior nanoscale colloidal properties, processing applicability (curcumin storage stability, bioaccessibility, and aqueous solubility), and bioactivity. Moreover, the oral synergism of EWDP and curcumin (initially nonsynergistic) for UC mitigation was achieved by alleviating inflammatory damage and gut microbiota imbalance. Overall, the novel assemblies could be a promising amplifier and platform to facilitate oral formulations of various nutraceuticals for food processing and UC relief.


Asunto(s)
Colitis Ulcerosa , Curcumina , Estructuras Metalorgánicas , Péptidos , Curcumina/química , Curcumina/administración & dosificación , Estructuras Metalorgánicas/química , Animales , Humanos , Péptidos/química , Péptidos/administración & dosificación , Colitis Ulcerosa/tratamiento farmacológico , Ratones , Quitosano/química , Clara de Huevo/química , Polisacáridos/química , Masculino , Administración Oral , Sinergismo Farmacológico , gamma-Ciclodextrinas/química , Portadores de Fármacos/química , Proteínas del Huevo/química
17.
J Orthop Surg Res ; 19(1): 291, 2024 May 12.
Artículo en Inglés | MEDLINE | ID: mdl-38735917

RESUMEN

BACKGROUND: Low back pain (LBP) affects a significant proportion of the adult population. Potent anti-resorptive drugs such as intravenous zoledronic acid have been demonstrated to reduce Modic changes (MCs) upon magnetic resonance imaging (MRI) of the spine and concomitantly decrease associated LBP. It is uncertain whether oral alendronic acid has a similar effect. METHODS: 82 subjects were recruited in this case-control study. Treatment subjects (n = 41) received oral alendronic acid treatment for at least 1-year and were matched by gender and age (± 2) to control subjects (n = 41) not receiving any anti-osteoporotic medication. The prevalence, type, and extent of MCs were quantified upon T1 and T2-weighted MRIs of the lumbosacral spine. RESULTS: Treatment subjects received oral alendronic acid for 124.0 ± 62.1 weeks at the time of MRI assessment and exhibited a lower prevalence of MCs over the lumbosacral spine (18/41 vs. 30/41, p < 0.001) as compared to control subjects. Amongst both groups, type 2 MCs were predominant. Quantification of type 2 MCs in treatment subjects revealed a significant reduction in area (113 ± 106 mm2 vs. 231 ± 144 mm2, p < 0.01) and volume (453 ± 427 mm3 vs. 925 ± 575 mm3, p < 0.01) affected by type 2 MCs in comparison to matched controls. CONCLUSION: Oral alendronic acid may be useful in the treatment of MC-associated LBP in patients with concomitant osteoporosis.


Asunto(s)
Conservadores de la Densidad Ósea , Dolor de la Región Lumbar , Vértebras Lumbares , Imagen por Resonancia Magnética , Humanos , Masculino , Femenino , Vértebras Lumbares/diagnóstico por imagen , Estudios de Casos y Controles , Persona de Mediana Edad , Conservadores de la Densidad Ósea/uso terapéutico , Conservadores de la Densidad Ósea/administración & dosificación , Anciano , Dolor de la Región Lumbar/tratamiento farmacológico , Dolor de la Región Lumbar/etiología , Dolor de la Región Lumbar/diagnóstico por imagen , Alendronato/uso terapéutico , Alendronato/administración & dosificación , Factores de Tiempo , Adulto , Administración Oral , Factores de Edad , Resultado del Tratamiento , Factores Sexuales
18.
J Nanobiotechnology ; 22(1): 241, 2024 May 12.
Artículo en Inglés | MEDLINE | ID: mdl-38735933

RESUMEN

BACKGROUND: Colorectal cancer (CRC) incidence is increasing in recent years due to intestinal flora imbalance, making oral probiotics a hotspot for research. However, numerous studies related to intestinal flora regulation ignore its internal mechanisms without in-depth research. RESULTS: Here, we developed a probiotic microgel delivery system (L.r@(SA-CS)2) through the layer-by-layer encapsulation technology of alginate (SA) and chitosan (CS) to improve gut microbiota dysbiosis and enhance anti-tumor therapeutic effect. Short chain fatty acids (SCFAs) produced by L.r have direct anti-tumor effects. Additionally, it reduces harmful bacteria such as Proteobacteria and Fusobacteriota, and through bacteria mutualophy increases beneficial bacteria such as Bacteroidota and Firmicutes which produce butyric acid. By binding to the G protein-coupled receptor 109A (GPR109A) on the surface of colonic epithelial cells, butyric acid can induce apoptosis in abnormal cells. Due to the low expression of GPR109A in colon cancer cells, MK-6892 (MK) can be used to stimulate GPR109A. With increased production of butyrate, activated GPR109A is able to bind more butyrate, which further promotes apoptosis of cancer cells and triggers an antitumor response. CONCLUSION: It appears that the oral administration of L.r@(SA-CS)2 microgels may provide a treatment option for CRC by modifying the gut microbiota.


Asunto(s)
Ácidos Grasos Volátiles , Microbioma Gastrointestinal , Limosilactobacillus reuteri , Probióticos , Microbioma Gastrointestinal/efectos de los fármacos , Probióticos/farmacología , Humanos , Ácidos Grasos Volátiles/metabolismo , Animales , Limosilactobacillus reuteri/metabolismo , Ratones , Quitosano/química , Alginatos/química , Alginatos/farmacología , Apoptosis/efectos de los fármacos , Antineoplásicos/farmacología , Antineoplásicos/química , Administración Oral , Neoplasias Colorrectales/tratamiento farmacológico , Línea Celular Tumoral , Receptores Acoplados a Proteínas G/metabolismo , Microgeles/química , Ratones Endogámicos BALB C , Ácido Butírico/farmacología , Ácido Butírico/metabolismo
19.
Cancer Control ; 31: 10732748241253959, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38736182

RESUMEN

OBJECTIVE: To evaluate the effectiveness of oral probiotic supplements in patients undergoing immune checkpoint inhibitors (ICIs) for the treatment of advanced lung cancer. METHODS: This prospective real-world study enrolled patients with advanced lung cancer who were receiving ICIs as part of their treatment. The patients were divided into 2 groups: Group OPS received oral probiotic supplements along with ICIs, while Group C did not. The primary endpoint was progression-free survival (PFS). The secondary outcome measure was the objective response rate (ORR). RESULTS: A total of 253 patients were included in the study, with 71 patients in Group OPS and 182 patients in the control group (Group C). No significant differences were observed in the median PFS between the 2 groups for all patients. However, for small cell lung cancer (SCLC) patients, the median PFS was significantly better in the Group OPS compared to the Group C (11.1 months vs 7.0 months, P = .049). No significant differences were observed in median PFS for the non-small cell lung cancer (NSCLC) cohort between the 2 groups, but a trend towards better median PFS in Group OPS was noticed (16.5 months vs 12.3 months, P = .56). The ORR for the entire cohort was 58.0%. CONCLUSION: Oral probiotics supplements in combination with ICIs included regimen may improve the outcome in patients with advanced SCLC. The above points should be proved by further study.


This study examined whether the addition of oral probiotic supplements to ICIs could enhance the treatment of advanced lung cancer. A total of 253 patients with advanced lung cancer were involved in the study, with some receiving probiotics in combination with ICIs and others not. The findings revealed that patients with SCLC who took probiotics had significantly better PFS compared to those who did not. Additionally, there was a tendency towards enhanced PFS in NSCLC patients who received probiotics. In conclusion, the study indicates that incorporating oral probiotics with ICIs may lead to better outcomes for patients with advanced SCLC, although further research is necessary to validate these results.This real world study explores whether oral probiotic supplements along with immune checkpoint inhibitors (ICIs) can help treat advanced lung cancer. The study included 253 patients with advanced lung cancer receiving ICIs treatment, part of them taking probiotics along with ICIs. The results showed that patients with small cell lung cancer (SCLC) who took probiotics had better progression-free survival (PFS) compared to those who didn't. There was also a trend towards better PFS in non-small cell lung cancer (NSCLC) patients who took probiotics. Overall, the study suggests that taking oral probiotics along with ICIs may improve outcomes for patients with advanced SCLC, but more research is needed to confirm these findings.


Asunto(s)
Inhibidores de Puntos de Control Inmunológico , Neoplasias Pulmonares , Probióticos , Humanos , Probióticos/administración & dosificación , Probióticos/uso terapéutico , Neoplasias Pulmonares/tratamiento farmacológico , Neoplasias Pulmonares/patología , Neoplasias Pulmonares/terapia , Neoplasias Pulmonares/mortalidad , Masculino , Femenino , Estudios Prospectivos , Persona de Mediana Edad , Anciano , Inhibidores de Puntos de Control Inmunológico/uso terapéutico , Inhibidores de Puntos de Control Inmunológico/administración & dosificación , Carcinoma Pulmonar de Células Pequeñas/tratamiento farmacológico , Carcinoma Pulmonar de Células Pequeñas/mortalidad , Carcinoma Pulmonar de Células Pequeñas/terapia , Carcinoma Pulmonar de Células Pequeñas/patología , Administración Oral , Suplementos Dietéticos , Supervivencia sin Progresión , Terapias Complementarias/métodos , Carcinoma de Pulmón de Células no Pequeñas/tratamiento farmacológico , Carcinoma de Pulmón de Células no Pequeñas/terapia , Carcinoma de Pulmón de Células no Pequeñas/patología , Carcinoma de Pulmón de Células no Pequeñas/mortalidad , Adulto
20.
Clin Transl Sci ; 17(5): e13820, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38738493

RESUMEN

The bioavailability of rivaroxaban at the higher doses (15 and 20 mg) is considerably reduced when the drug is administered on an empty stomach. This can lead to inadequate anticoagulant effect, and therefore, it is recommended to use the higher doses at fed state. However, proper posology may represent a barrier for some patients. Therefore, the aim of this study was to evaluate innovative rivaroxaban-containing formulations designed to eliminate the food effect to ensure reliable absorption and thus to improve patient adherence with the treatment. Three prototypes (Cocrystal, HPMCP and Kollidon) with rivaroxaban were developed and their bioavailability and food effect in comparison to the reference product was tested in open label, randomized, single oral dose, crossover studies, where test products were administered under fasting and fed conditions and the reference product was administered under fed conditions. Comparable bioavailability for all tested prototypes both under fed and fasting conditions was demonstrated as the 90% confidence intervals of the geometric mean ratios for area under the concentration-time curve remained within the standard acceptance range of 80.00%-125.00%. An innovative immediate release form of rivaroxaban with no food effect on drug bioavailability has been developed, which may represent an important step toward increasing adherence, improving treatment outcome and reducing health care costs.


Asunto(s)
Disponibilidad Biológica , Estudios Cruzados , Ayuno , Interacciones Alimento-Droga , Rivaroxabán , Humanos , Rivaroxabán/farmacocinética , Rivaroxabán/administración & dosificación , Masculino , Adulto , Femenino , Administración Oral , Persona de Mediana Edad , Inhibidores del Factor Xa/farmacocinética , Inhibidores del Factor Xa/administración & dosificación , Adulto Joven , Composición de Medicamentos/métodos , Comidas
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