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1.
Artículo en Inglés | MEDLINE | ID: mdl-38317473

RESUMEN

BACKGROUND: A potential limelight is flashed on the Gut Microbiota (GM) in the human body, which confers additional psychological as well as physiological attributes to health. Other than just occupying a wide portion of the gastrointestinal tract, it also plays numerous functions in the systems of the body. Gut Microbiota is largely responsible for a considerably vast array of conditions such as obesity, diabetes ,other metabolic disorders, and cardiovascular disorders. Strategies targeting the gut microbiota have been proposed as a promising approach for the management of these disorders. OBJECTIVE: This review aims to summarize the different strategies targeting the gut microbiota for the management of several disorders and to highlight the importance of a sustainable approach. METHODS: A comprehensive literature search was conducted using various databases between 2008 and 2022 that focused on the use of prebiotics, probiotics, synbiotics, postbiotics, fecal microbiota transplantation, dietary interventions, and antibiotics. RESULTS: Different strategies targeting the gut microbiota for the management of several disorders were identified, including probiotics, prebiotics, synbiotics, postbiotics, fecal microbiota transplantation, and dietary interventions. Modification in diet and lifestyle, allowing favorable microbiota growth in the stomach, intake of prebiotics and probiotics, and fecal microbiota transplantation are amongst the widely accepted recent approaches allowing the application of GM in the field of treatment. CONCLUSION: Although considerable steps in enhancing and understanding the mechanism of treatment with the help of gut microbiota are under progress, much diversified and elaborate research must be conducted in order to enhance and implement the use of GM with high effectiveness.

3.
Pediatr Blood Cancer ; 71(2): e30798, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-38053230

RESUMEN

BACKGROUND: Individual- and population-level socioeconomic disadvantages contribute to unequal outcomes among childhood cancer survivors. Reducing health disparities requires understanding experiences of survivors from historically marginalized communities, including those with non-English language preference. PROCEDURE: We partnered with a community-based organization (CBO) serving families of children with cancer in a rural region in California with low socioeconomic status and majority Hispanic/Latino (H/L) residents. We interviewed English- and Spanish-speaking adolescent/young adult (AYA) childhood cancer survivors (≥15 years old, ≥5 years from diagnosis), parents, and CBO staff to evaluate post-treatment needs and impact of CBO support. Data were analyzed qualitatively using applied thematic analysis. Themes were refined through team discussions with our community partners. RESULTS: Twelve AYAs (11 H/L, 11 bilingual), 11 parents (eight H/L, seven non-English preferred), and seven CBO staff (five H/L, five bilingual) participated. AYAs (five female, seven male) were of median (min-max) age 20 (16-32) and 9 (5-19) years post diagnosis; parents (nine female, two male) were age 48 (40-60) and 14 (6-23) years post child's diagnosis. Themes included challenges navigating healthcare, communication barriers among the parent-AYA-clinician triad, and lasting effects of childhood cancer on family dynamics and mental health. Subthemes illustrated that language and rurality may contribute to health disparities. CBO support impacted families by serving as a safety-net, fostering community, and facilitating H/L families' communication. CONCLUSIONS: Childhood cancer has long-lasting effects on families, and those with non-English language preference face additional burdens. Community-based support buffers some of the negative effects of childhood cancer and may reduce disparities.


Asunto(s)
Inequidades en Salud , Neoplasias , Adolescente , Adulto , Niño , Femenino , Humanos , Masculino , Persona de Mediana Edad , Adulto Joven , Familia/psicología , Hispánicos o Latinos/psicología , Neoplasias/terapia , Padres/psicología , Investigación Cualitativa , Poblaciones Vulnerables , Factores Socioeconómicos , Supervivientes de Cáncer
4.
J Acad Ophthalmol (2017) ; 15(2): e261-e270, 2023 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-38059190

RESUMEN

Background The evolution of medical school curricula, characterized by truncated preclinical periods and reduced emphasis on ophthalmology, presents formidable obstacles to early exposure for aspiring medical students. The constraints imposed by the coronavirus disease 2019 pandemic further exacerbated the limitations on opportunities, compelling the implementation of innovative initiatives aimed at augmenting students' ophthalmology education through virtual means. Purpose This article assesses the impact of an Ophthalmology Virtual Externship (OVE) on medical students' knowledge, interest, confidence, and seeking mentorship in ophthalmology. Materials and Methods A total of 76 students voluntarily participated in the program. The OVE encompassed four virtual sessions, facilitated by 4th year medical students employing a near-peer mentorship framework. The initiative was tailored for 2nd and 3rd year medical students and was conducted under the supervision of a faculty member. All participating students completed both pre- and postexternship surveys utilizing a 7-point Likert scale to gauge their levels of interest, confidence, and inclination toward mentorship opportunities in the field of ophthalmology. Furthermore, assessments of ophthalmology knowledge were administered prior to and subsequent to the externship participation. The degree of satisfaction derived from the OVE experience was also evaluated. Results Participation in the OVE significantly elevated confidence in knowledge ( p < 0.001) and mentorship interest ( p = 0.029). Ophthalmology knowledge test scores also notably improved post-OVE across all participants, irrespective of prior experience ( p < 0.001), with the most significant increase observed among 2nd and 3rd year students ( p < 0.0001). After OVE participation, 73% of students expressed intent to pursue ophthalmology opportunities, including mentorship or research. The OVE received an average Likert score of 6.35 out of 7 for student satisfaction. Conclusion The OVE serves as a virtual learning instrument beneficial for 2nd and 3rd year students with a proclivity for ophthalmology, offering a means to circumvent curriculum-related constraints. Moreover, given the decline in formal ophthalmic education, our study contributes to future research assessing the effectiveness of an OVE in addressing ophthalmic knowledge gaps among all medical students.

5.
J Pediatr Urol ; 19(4): 401.e1-401.e7, 2023 08.
Artículo en Inglés | MEDLINE | ID: mdl-37188601

RESUMEN

INTRODUCTION: Patients with Congenital Lower Urinary Tract Malformations (CLUTM) have increased risk of post-transplant complications if bladder dysfunction is not addressed. Pretransplant assessment may be difficult if urinary diversion has been previously applied. In case of low capacity and/or low compliance and/or high-pressure overactive bladder, transplantation into a diverted or augmented system may be required. We hypothesised that a bladder optimization pathway may help identify potentially salvageable bladders and prevent unnecessary bladder diversion or augmentation. We propose a structured bladder optimisation and assessment programme for safe transplant and native bladder salvage. MATERIAL AND METHODS: Data of 130 children who underwent renal transplant between 2007 and 2018 were retrospectively collected and analysed. All patients with CLUTM were assessed by urodynamic study. Bladder optimisation: Low compliance bladders were managed with anticholinergics and/or Botulinum toxin A (BtA) injections. Those who had urinary diversion for their pathology underwent a structured assessment and optimisation process with undiversion/anticholinergics/BtA/bladder cycling/Clean Intermittent Catheterisation (CIC)/Suprapubic catheter (SPC) as indicated. Details of medical and surgical management were collected (Figure 1). RESULTS: Between 2007 and 2018, 130 renal transplants were done. Of these, 35 (27%) had associated CLUTM (PUV in 15, neurogenic bladder dysfunction in 16, other pathology in 4) which was managed in our centre. Ten patients needed initial diversion in the form of vesicostomy (2) or ureterostomy (8) to manage primary bladder dysfunction. The median age at transplant was 7.8 years (range 2.5-19.6). After bladder assessment and optimisation, a safe bladder was demonstrated in 5 of 10 with initial diversion leading to transplant into native bladder (without augmentation). Overall, of the 35 patients, 20 (57%) had transplant into native bladder, 11 patients had ileal conduits and 4 had bladder augmentation. Eight required help with drainage: three with CIC, four with Mitrofanoff, and one had reduction cystoplasty. CONCLUSION: With a structured bladder optimisation and assessment programme, safe transplant and 57% native bladder salvage is achievable in children with CLUTM.


Asunto(s)
Toxinas Botulínicas Tipo A , Trasplante de Riñón , Síntomas del Sistema Urinario Inferior , Vejiga Urinaria Hiperactiva , Derivación Urinaria , Adolescente , Adulto , Niño , Preescolar , Humanos , Adulto Joven , Toxinas Botulínicas Tipo A/administración & dosificación , Antagonistas Colinérgicos/administración & dosificación , Cistostomía , Trasplante de Riñón/efectos adversos , Estudios Retrospectivos , Vejiga Urinaria/cirugía , Derivación Urinaria/efectos adversos , Terapia Recuperativa , Síntomas del Sistema Urinario Inferior/congénito
6.
Infect Disord Drug Targets ; 23(5): e240323214950, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-36967463

RESUMEN

The current world is plagued by unpredictability as a result of various COVID-19 variants. The current variants of concern (VOCs) are B.1.1.7 (Alpha), B.1.351 (Beta), P.1 (Gamma) and B.1.617/B.1.617.2(Delta). WHO classified two variants, delta (B.1.617.2) and omicron (B.1.1.529), as having highly mutable strikes. The WHO predicted that it would be more dangerous than previous variants due to its mutatable capability. The Omicron variant of coronavirus has caused widespread disruption, with countries struggling to manage the massive number of infections. Due to its unique properties, such as protein structure, symptoms, transmission, and epidemiology, this review aims to compare omicron to other variants. Furthermore, we have highlighted vaccines that have been used to combat this pandemic.


Asunto(s)
COVID-19 , SARS-CoV-2 , Humanos , Pandemias/prevención & control
7.
Artículo en Inglés | MEDLINE | ID: mdl-36847227

RESUMEN

Owing to the enhanced toxicity as well as consequences of allopathic medication, the research on herbal therapies is developing progressively. As a result, medicinal herbs are beginning to play a substantial role in the advancement of the dominant therapeutic medications. Since ancient times, the use of herbs has performed a vital part in human well-being as well in the invention of cutting-edge pharmaceuticals. Inflammation and related illnesses are a major health concern for the entire human population. Pain-inducing drugs including opiates, non-steroidal anti-inflammatory drugs, glucocorticoids, and corticosteroids have severe side effects and these therapies suffer from the recurrence of symptoms too after discontinuing the treatment. As a result, the diagnosis along with the advancement of medications with anti-inflammatory properties is the priority to conquer the drawbacks of the existing therapies. The present review article provides insight into the literature comprising promising phytochemicals from various medicinal plants tested through different model systems and employed for alleviating inflammation in several inflammatory disorders as well as clinical status of the herbal products.


Asunto(s)
Plantas Medicinales , Humanos , Plantas Medicinales/química , Fitoterapia , Extractos Vegetales/efectos adversos , Inflamación/tratamiento farmacológico , Antiinflamatorios/efectos adversos
8.
Ophthalmic Epidemiol ; 30(4): 407-413, 2023 08.
Artículo en Inglés | MEDLINE | ID: mdl-36171732

RESUMEN

PURPOSE: Analyze practice patterns of glaucoma surgeons with and without fellowship training. MATERIALS AND METHODS: Physician-specific 2017 Medicare data were obtained from the Centers for Medicare & Medicaid Services website. Current Procedural Terminology codes identified procedures including iStent, tube shunts, trabeculectomy, complicated trabeculectomy, endoscopic cyclophotocoagulation, internal Xen Implant, external Xen or Express shunt, Gonioscopy-Assisted Transluminal Trabeculotomy, and Kahook Dual Blade Goniotomy. Physicians with fellowship training were identified via the American Glaucoma Society website. RESULTS: A total of 1547 glaucoma surgeons were identified, of which 319 had completed fellowship training. Overall, fellowship-trained glaucoma surgeons performed more services (50.4 ± 47.0 vs 40.5 ± 35.3, P < .001) with a larger variety of procedures (1.8 ± 1.0 vs 1.3 ± 0.6, P < .001) than those without fellowship training. Surgeons without fellowship training were more likely to perform iStent and endoscopic cyclophotocoagulation and less likely to perform the remaining procedures than their fellowship-trained counterparts. Medicare payments did not differ between groups and the number of Medicare beneficiaries only differed for internal Xen implant (P = .03). Patient comorbidity burden was similar between groups with about one-third of patients being diagnosed with ischemic heart disease. CONCLUSIONS: Surgeons without fellowship training can treat a similar volume of glaucoma patients as those with fellowship training. However, based on surgical procedures employed, their practices are skewed towards mild and moderate glaucoma and they are more limited in their breadth of procedures. In addition, ischemic heart disease was prevalent in the glaucoma patient population.


Asunto(s)
Glaucoma , Cirujanos , Trabeculectomía , Anciano , Humanos , Estados Unidos , Becas , Medicare , Glaucoma/cirugía , Trabeculectomía/métodos , Estudios Retrospectivos
9.
Anticancer Agents Med Chem ; 23(5): 525-561, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-35786337

RESUMEN

Heterocyclic compounds are recognized to possess a high grade of structural diversity and a broad spectrum of therapeutic properties. About two-thirds of the New Chemical Entities approved by the FDA against cancer entail heterocyclic rings and are the foundation stone of medicinal chemistry. Pyrimidine being a major heterocyclic compound and a crucial base component of the genetic material, has emerged as the key structural component against cancer, the deadliest disease worldwide. Though many drugs are marketed against cancer, researchers are still investigating the more promising moieties against various malignancies due to the severity of this disease. In this review, an attempt has been made to assemble the reported literature of the previous five years on various synthetic procedures and the anti-cancer potential of various classes of fused pyrimidine analogs, which would help the researchers in designing new potent derivatives. Besides this, the review intends to focus on the comprehensive discussion on biological targets, modes of action, and structure-activity relationships of each class of fused pyrimidines as potential anticancer agents.


Asunto(s)
Antineoplásicos , Compuestos Heterocíclicos , Neoplasias , Humanos , Antineoplásicos/química , Pirimidinas/química , Relación Estructura-Actividad , Compuestos Heterocíclicos/química , Neoplasias/tratamiento farmacológico
10.
Ophthalmic Epidemiol ; 30(4): 367-375, 2023 08.
Artículo en Inglés | MEDLINE | ID: mdl-36177537

RESUMEN

PURPOSE: Poor eye-health knowledge and health literacy are pervasive, contributing to worse outcomes. This study aims to examine short- and long-term eye-health knowledge retention following eye-health education interventions in adults. METHODS: Vision Detroit was an outreach vision screening program that integrated a 5-Point Teaching Intervention (5PTI), at a Southwest Community Center (SW-CC) from 2015-2017. The 5PTI consists of eye-health learning points developed to verbally educate patients. During vision screenings, eye-health knowledge tests were administered before and after 5PTI (Test 1 and Test 2, respectively). In 2016, Community Eye-Health Education Interventions (CHEI) were initiated at the SW-CC. During CHEI, bilingual healthcare students taught voluntary SW-CC members the 5PTI learning points, regardless of participant interest to attend future screenings. CHEI sessions occurred on separate dates prior to vision screening events. Test 1 and Test 2 scores were compared for all participants. Test 1 scores were compared for those who underwent CHEI prior to vision screening (CHEI positive) versus those who did not (CHEI negative). RESULTS: Two-hundred-seventeen adult patients met inclusion criteria, with 75.8% women, 82.6% Hispanic, mean age 50.4 ± 16.2 years, 74.6% had high school or less education, and 49.2% had health insurance. Test 1 to Test 2 scores improved after 5PTI (71.2 ± 26.4% vs. 97.2 ± 9.9%, p < .00001). Forty-eight participants attended CHEI and subsequent vision screening. Test 1 scores were higher among those CHEI positive versus CHEI negative (81.1 ± 2.1% vs. 68.3 ± 3.4%, p = .0027). CONCLUSION: Simple eye-health education interventions, delivered during vision screenings and via community-based education, can improve eye-health knowledge.


Asunto(s)
Selección Visual , Visión Ocular , Adulto , Humanos , Femenino , Persona de Mediana Edad , Anciano , Masculino , Atención a la Salud , Educación en Salud
11.
Assay Drug Dev Technol ; 20(7): 317-337, 2022 10.
Artículo en Inglés | MEDLINE | ID: mdl-36269231

RESUMEN

One of the most sought-after therapeutic targets for treating human cancers is the phosphoinositide 3-kinase; PI3k is an integral part of the PI3K/protein kinase B signaling arcade. This pathway is frequently activated in malignancies. Drug resistance and dose-limiting adverse effects are currently associated challenges with the existing anticancer chemotherapy. Therefore, in this research, a series of pyrimidine derivatives were designed and evaluated against human PI3K by using molecular docking analysis. The docking results were further verified by molecular dynamic simulation, which analyzed the strength of the macromolecular complex with respect to time. Compounds IV and XIV were found to be the most potent inhibitors of the human PI3K receptor with a high degree of stability within the active site of the target receptor for a timeframe of 50 ns. Thus, both of these compounds could be important drug candidates for the development of PI3K inhibitors as a prospective anticancer agent.


Asunto(s)
Antineoplásicos , Diseño de Fármacos , Inhibidores de las Quinasa Fosfoinosítidos-3 , Humanos , Antineoplásicos/farmacología , Antineoplásicos/química , Simulación del Acoplamiento Molecular , Neoplasias/tratamiento farmacológico , Fosfatidilinositol 3-Quinasa , Fosfatidilinositol 3-Quinasas , Inhibidores de las Quinasa Fosfoinosítidos-3/síntesis química , Inhibidores de las Quinasa Fosfoinosítidos-3/química , Estudios Prospectivos , Proteínas Proto-Oncogénicas c-akt , Pirimidinas/química , Pirimidinas/farmacología
12.
J Curr Glaucoma Pract ; 16(1): 36-40, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36060042

RESUMEN

Aim: "Consensual ophthalmotonic reaction" refers to changes in intraocular pressure (IOP) in one eye, which is accompanied by a corresponding change in IOP in the contralateral eye. This study evaluates whether monocular administration of selective laser trabeculoplasty (SLT) leads to a consensual ophthalmotonic reaction and how long this effect lasts. Materials and methods: A retrospective chart review was performed on patients receiving SLT at Kresge Eye Institute in Detroit, MI, from January 2015 to August 2016. Patients were excluded if they had previous history of glaucoma incisional and/or laser procedures; required additional laser trabeculoplasty; had glaucoma medication changes during the follow-up period; experienced no decrease in IOP during the follow-up period; or had a diagnosis of angle closure on gonioscopy. Various demographic, clinical, and surgical data were collected. IOP measurements were collected at baseline and postoperatively at 1-3 months, 4-9 months, and 12-15 months. Results: At all follow-up periods, the IOP of the treated eye was decreased from baseline IOP (p ≤ 0.05, paired t-test). For the fellow eye, there was a statistically significantly decrease from baseline up to the 4-9 months follow-up period (p ≤ 0.05, paired t-test). Linear regression analysis of the percent reduction in IOP from baseline in the SLT-treated eye with the fellow eye shows a mild correlation at all-time points: R2 = 0.284 (p < 0.001) at 1-3 months; R2 = 0.348 (p < 0.001) at 4-9 months; R2 = 0.118 (p = 0.054) at 12-15 months. Conclusion: This study showed that monocular administration of SLT results in a consensual ophthalmotonic reaction. The consensual ophthalmotonic reaction appears to last for up to 4-9 months. Clinical significance: Therefore, although SLT does lead to a consensual ophthalmotonic reaction, monocular administration of SLT is not a reliable method of long-term IOP control for the contralateral non-SLT-treated eye. How to cite this article: Nassiri N, Mei F, Tokko H, et al. Consensual Ophthalmotonic Reaction Following Selective Laser Trabeculoplasty. J Curr Glaucoma Pract 2022;16(1):36-40.

13.
J Curr Glaucoma Pract ; 16(1): 11-16, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36060045

RESUMEN

Purpose: Using demographic, clinical, visual field, and optical coherence tomography (OCT) variables to study the association of 5-year glaucomatous progression in glaucoma suspect eyes. Patients and methods: This is a retrospective longitudinal clinical study. Inclusion criteria consisted of glaucoma suspect eyes (i.e., concerning cup-to-disk ratio and/or intraocular pressure (IOP) >21 mm Hg), age ≥ 30 years old, follow-up time of 5 years, best-corrected visual acuity (BCVA) of 20/100 or better, spherical equivalent (SE) higher than 8 diopters and an astigmatism less than 3 diopters. Eyes with glaucoma-determined by two consecutive, reliable visual field tests-were excluded, as well as any eyes with any clinically significant retinal or neurological disease. The percentage of glaucoma suspect eyes, which progressed to glaucoma within a 5-year period, was calculated. Study subjects were divided into the following groups: eyes that progressed to glaucoma and those that did not. Results: In the 288 patients which we looked at, 365 total eyes, 323 eyes had concerning cup-to-disk ratio and 42 had ocular hypertension. Bivariate analysis showed that the eyes which progressed to glaucoma had significantly worse mean deviation, increased pattern standard deviation (PSD), and less visual field index (VFI). Our bivariate analysis also showed a thinner average, superior and inferior retinal nerve fiber layer thickness (RNFL), and more severe average, superior, and inferior RNFL damages (i.e., color grading scale) at baseline. Logistic regression analysis showed that only PSD and severe inferior RNFL damage (i.e., red color) to be significantly associated with 5-year glaucomatous progression. Conclusion: Segmental RNFL damage and pattern standard deviation are associated with 5-year glaucomatous progression in glaucoma suspect eyes. How to cite this article: Nassiri N, Das S, Patel V, et al. Factors Associated with 5-year Glaucomatous Progression in Glaucoma Suspect Eyes: A Retrospective Longitudinal Study. J Curr Glaucoma Pract 2022;16(1):11-16.

14.
J Pediatr Urol ; 18(5): 611.e1-611.e8, 2022 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-35970739

RESUMEN

In Manchester, feminising genitoplasty is offered to children with 46XX Congenital Adrenal Hyperplasia (CAH) when there is a single perineal opening and/or enlarged clitoris. Our aims are to describe the anatomical reconstructive technique and present long-term outcomes. Our hypothesis is that 'the common channel (CC) length and distance to the vagina from perineal skin is mostly due to virilisation and hypertrophy of perineal tissue over the almost normally positioned vaginal introitus (V-I) in relation to the perineal body (PB)'. METHOD AND RESULTS: This is a retrospective notes review of all consecutive 46XX CAH operations from 1976 to December 2021. 99 patients, who had feminising genitoplasty and being followed-up, were included. 15 patients who were lost to follow up were excluded. Median age at surgery was 15 months. In 91, midline division of the labia majora, spongiosum, bulbo-spongiosus muscle (BSM) and CC down to PB was performed. This was sufficient to expose the V-I at the same level or within 5 mm depth of PB in 88. In 78 V-I was adequate taking 10/12fr dilator (Type 1). In 10, CC resembled a male urethra and V-I was narrow (Type 2), requiring widening by 5-10 mm incision at 6 o'clock position. Dartos of labia majora was attached to BSM to reduce the distance to V-I from perineal skin and the gap was lined with inner foreskin to create a vestibule. Out of 70 who were post-pubertal, 75% (53/70) had adequate calibre vaginal openings. 5 had introitoplasty and 2 had dilatation under anaesthesia. 10 needed self dilators only. 29 patients, of one of the three surgeons, had measurements of clitoris, CC, urethra and vagina. A hymen was found in 86% (25/29). There was significant strong, inverse correlation between the CC length and the urethral length (r = -0.708, p < 0.001, n = 27) but not between CC and vaginal lengths. After adjusting for age, the urethral length of Type 2 patients was 3.825 mm shorter than those of Type 1 (p = 0.017). CONCLUSION: Our data show that 'high' confluence is mostly due to virilisation of genitalia; and the anatomical technique of reversing the fusion of the urethral folds, spongiosum and bulbo-spongiosus muscle could be performed with all degrees of virilisation with success in early childhood with no need of local flaps or mobilisation of the urethro-vaginal complex. About 10% require surgery to treat narrowing of vaginal opening post puberty.


Asunto(s)
Hiperplasia Suprarrenal Congénita , Niño , Femenino , Preescolar , Humanos , Masculino , Lactante , Hiperplasia Suprarrenal Congénita/cirugía , Estudios Retrospectivos , Vulva/cirugía , Vagina/cirugía , Vagina/anomalías , Virilismo
15.
J Pediatr Urol ; 18(4): 500.e1-500.e6, 2022 08.
Artículo en Inglés | MEDLINE | ID: mdl-35545491

RESUMEN

INTRODUCTION: Mucus production by the intestinal segment used in bladder augmentation results in long term concerns especially stones and UTI. Bladder augmentation with demucosalized intestinal flap is a potential promising approach for mucus-free bladder augmentation, however the contraction of the flap remains a major concern. Mucosectomy has been shown to result in abrupt and immediate cessation of microcirculation in the ileum. However, assessment of microcirculation shortly after mucosectomy may miss a gradual recovery of micro-circulation over a longer period of time. Previous studies have not assessed the colon response to mucosectomy. OBJECTIVE: Our aim was to assess the effect of mucosectomy on the microcirculation of the colon and ileum beyond the known warm ischemia time. STUDY DESIGN: Ileum and colon segments were detubularised and mucosectomy was performed in (n = 8) anesthetised minipigs. Group A: sero-musculo-submucosal flaps were created with removal of the mucosa and preserving the submucosal layer Group B: sero-muscular flaps were created with the removal of submucosal-mucosal layer. The Microvascular Flow Index (MFI), the velocity of the circulating red blood cells (RBCV) was measured using Intravital Dark Field (IDF) side stream videomicroscopy (Cytoscan Braedius, The Netherlands) after mucosectomy, for up to 180 min. RESULTS: Both the MFI and RBCV showed an abrupt reduction of microcirculation, on both surfaces of the remaining intestinal flap, in the ileum as well as in the colon. Slightly better values were seen in Group A of the colon, but even these values remain far below the preoperative (control) results. Some, tendency of recovery of the microcirculation was noted after 60-90 min, but this remained significantly lower than the preoperative control values at 180 min. CONCLUSION: Both the ileal and the colonic flap remains in severe ischemia after mucosectomy beyond the warm ischemia time. DISCUSSION: This study shows that surgical mucosectomy compromises vascular integrity of the intestinal flaps used for bladder augmentation. Partial recovery which occurs within the warm ischemia time is not significant enough to avoid fibrosis therefore flap shrinkage may be inevitable with this technique. LIMITATION: The gastrointestinal structure of the porcine model is not the same exactly as the human gastrointestinal system. However, although not an exact match it is the closest, readily available animal model to the human gastrointestinal system.


Asunto(s)
Enfermedades de la Vejiga Urinaria , Vejiga Urinaria , Animales , Porcinos , Humanos , Vejiga Urinaria/cirugía , Porcinos Enanos , Íleon/cirugía , Íleon/irrigación sanguínea , Colon/cirugía , Isquemia/cirugía , Mucosa Intestinal/cirugía
16.
Pharmaceutics ; 14(5)2022 May 19.
Artículo en Inglés | MEDLINE | ID: mdl-35631677

RESUMEN

Plant-based medicines have received a lot of attention in recent years. Such medicines have been employed to treat medical conditions since ancient times, and in those times only the observed symptoms were used to determine dose accuracy, dose efficacy, and therapy. Rather than novel formulations, the current research work on plant-based medicines has mostly concentrated on medicinal active phytoconstituents. In the past recent decades, however, researchers have made significant progress in developing "new drug delivery systems" (NDDS) to enhance therapeutic efficacy and reduce unwanted effects of bioactive compounds. Nanocapsules, polymer micelles, liposomes, nanogels, phytosomes, nano-emulsions, transferosomes, microspheres, ethosomes, injectable hydrogels, polymeric nanoparticles, dendrimers, and other innovative therapeutic formulations have all been created using bioactive compounds and plant extracts. The novel formulations can improve solubility, therapeutic efficacy, bioavailability, stability, tissue distribution, protection from physical and chemical damage, and prolonged and targeted administration, to name a few. The current study summarizes existing research and the development of new formulations, with a focus on herbal bioactive components.

17.
Molecules ; 27(3)2022 Jan 27.
Artículo en Inglés | MEDLINE | ID: mdl-35164093

RESUMEN

Cosmetic-containing herbals are a cosmetic that has or is claimed to have medicinal properties, with bioactive ingredients purported to have medical benefits. There are no legal requirements to prove that these products live up to their claims. The name is a combination of "cosmetics" and "pharmaceuticals". "Nutricosmetics" are related dietary supplements or food or beverage products with additives that are marketed as having medical benefits that affect appearance. Cosmetic-containing herbals are topical cosmetic-pharmaceutical hybrids intended to enhance the health and beauty of the skin. Cosmetic-containing herbals improve appearance by delivering essential nutrients to the skin. Several herbal products, such as cosmetic-containing herbals, are available. The present review highlights the use of natural products in cosmetic-containing herbals, as natural products have many curative effects as well as healing effects on skin and hair growth with minimal to no side effects. A brief description is given on such plants, their used parts, active ingredients, and the therapeutic properties associated with them. Mainly, the utilization of phytoconstituents as cosmetic-containing herbals in the care of skin and hair, such as dryness of skin, acne, eczema, inflammation of the skin, aging, hair growth, and dandruff, along with natural ingredients, such as for hair colorant, are explained in detail in the present review.


Asunto(s)
Productos Biológicos/uso terapéutico , Cosmecéuticos/uso terapéutico , Cosméticos/uso terapéutico , Envejecimiento de la Piel/efectos de los fármacos , Enfermedades de la Piel/tratamiento farmacológico , Piel/metabolismo , Humanos
18.
Ophthalmic Epidemiol ; 29(1): 13-24, 2022 02.
Artículo en Inglés | MEDLINE | ID: mdl-33576279

RESUMEN

PURPOSE: Vision loss and blindness are among the top ten disabilities in the United States, yet access and utilization of eye care remains low. Vision Detroit aimed to address eye-care disparities via community-based screenings. By investigating burden of eye disease and barriers to eye-care utilization in an underserved urban community, we may direct efforts to improve access. METHODS: Twenty-three screenings were conducted from March 2015-November 2017. Patient information gathered at screenings were demographics, medical and social history, eye exam/referral history, insurance status, primary care physician (PCP) status, and patient-perceived eye-care barriers. RESULTS: Three-hundred-eighty patients were screened, 42% African American and 51% Hispanic. Average age was 53 ± 16.4 years, 70% reported vision problems, 50% reported over two years of vision problems, and average habitual visual acuity in best-seeing eye was 20/37. Eye-care underutilization was reported in 61% of type-2 diabetics. Older age and PCP recommendations/referrals were associated with increased utilization in all patients. Insurance was the most common barrier (53%); of the 55% insured, 31% reported financial barriers. Employed patients were more likely than unemployed to report a time barrier (odds ratio = 1.76, 95% confidence interval 1.03-3.01). Those with high school or less education reported "unaware of need", "unsure where to go", "transportation", and "insurance" as barriers more often. CONCLUSION: Visual burden was pervasive, yet access was suboptimal. Financial, logistical, and awareness barriers were common. PCP referral and older age were associated with increased utilization. Those less educated reported more barriers, highlighting the need to address fiscal concerns and eye-health education.


Asunto(s)
Ceguera , Trastornos de la Visión , Adulto , Negro o Afroamericano , Anciano , Ceguera/epidemiología , Ceguera/prevención & control , Accesibilidad a los Servicios de Salud , Humanos , Persona de Mediana Edad , Derivación y Consulta , Estados Unidos/epidemiología , Trastornos de la Visión/epidemiología , Trastornos de la Visión/terapia , Agudeza Visual
19.
Curr Drug Metab ; 22(6): 441-450, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33402079

RESUMEN

Cubosomes are highly stable nanostructured liquid crystalline dosage delivery form, derived from amphiphilic lipids and polymer-based stabilizers converting it in a form of effective biocompatible carrier for the drug delivery. The delivery form comprised of bicontinuous lipid bilayers arranged in three-dimensional honeycombs like structure provided with two internal aqueous channels for the incorporation of many s biologically active ingredients. In contrast to liposomes, they provide a large surface area for the incorporation of different types of ingredients. Due to the distinct advantages of biocompatibility and thermodynamic stability, cubosomes have remained the first preference as a method of choice in the sustained release, controlled release, and targeted release dosage forms as new drug delivery system for the better release of the drugs. As a lot of advancement in the new form of dosage form brought the novel avenues in drug delivery mechanisms, so it was a matter of worth to compile the latest updates on the various aspects of the mentioned therapeutic delivery system including its structure, routes of applications along with the potential applications to encapsulate variety drugs to serve health-related benefits.


Asunto(s)
Sistemas de Liberación de Medicamentos/métodos , Lípidos/administración & dosificación , Lípidos/química , Nanopartículas , Nanoestructuras , Polímeros
20.
J Acad Ophthalmol (2017) ; 13(2): e163-e169, 2021 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-37388824

RESUMEN

Objective Abrupt changes in ophthalmology education caused by the COVID-19 pandemic have resulted in novel online curriculum development. The aims of this study were to identify (1) the scope of online curricula implemented both prior to and during the COVID-19 pandemic; (2) perception of educators on these online modalities; and (3) early lessons from online implementation that may guide future curricular planning. Methods Implementation of online curricula was evaluated by using a national online survey of Ophthalmology Directors of Medical Student Education (DMSE) via Qualtrics software. Participants Medical Student Educators of the Association of University Professors of Ophthalmology (AUPO) were surveyed. Results Fifty responses were collected, representing a 64.9% response rate. Prior to the COVID-19 pandemic, 44% of institutions had no online components in their courses, but 78.3% of institutions reported increasing online components in response to the pandemic. Required courses were significantly associated both with having implemented online components before the pandemic and implementing online-only versions of these courses in response to the pandemic. The three most popular modalities used for online teaching were lectures, interactive cases, and problem-based learning, with a median satisfaction of 4.0, 4.32, and 4.35, (out of five) respectively. The least popular modalities used were online teaching of physical exam skills and telemedicine, both with a median satisfaction of 2.5. Median overall educator satisfaction with online teaching was four (out of five). The most common weakness related to online teaching was the lack of effective physical exam skills training. Conclusion Our data demonstrate that most institutions successfully shifted their ophthalmology curriculum to a virtual and online version in response to the COVID-19 pandemic. DMSEs adapted quickly, transitioning in-person clinical courses, and extracurricular activities to online formats. Overall, educator satisfaction with online curricula was high. Integration of online curricula provides the opportunity to enrich institutional curriculums and overcome limitations imposed by decreasing curriculum time. This study reveals an early window into the utilization, strengths, and weaknesses of online ophthalmology education, which can serve as a guiding point to enhance ophthalmology curriculum development.

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