Ingenious application of ethylenediaminetetraacetic acid disodium to improve the extraction yield of psoralen in fig ( Ficus carica L.) leaves
In this study, ethylenediaminetetraacetic acid (EDTA) disodium was first chosen as catalyst to convert psoralenoside (PO) to psoralen (PSO) for increasing the extraction yield of PSO. An efficient continuous system for synchronous transformation and extraction of PSO from fig leaves applying microwave-assisted EDTA disodium (MAE-EDTA) was developed. The optimal MAE-EDTA condition was obtained: EDTA disodium concentration of 0.07 mol·L-1, ethanol volume fraction of 56%, extraction time of 16 min, and extraction temperature of 70 °C by single factor experiments and response surface method (RSM). Under the optimal condition, the yield of PSO reached 27.24 mg·g-1. Compared with microwave-assisted ethanol extraction (MAE) and reflux extraction (RE), the yield of PSO by MAE-EDTA is 2.03-fold higher than RE and 1.70-fold higher than MAE. Therefore, MAE-EDTA is an efficient method for extracting PSO from fig leaves, and it might provide references for the extraction of PSO from other medicinal plants.PMID:34546825 | DOI:10.1080/14786419.2021.1980792
ConclusionResults show absence of effectiveness in the systematic use of metoclopramide as prophylaxis of GERD symptoms in premature infants. Additionally, no adverse effects attributable to the drug were found.ClinicalTrials.gov: NCT02907632; September 20, 2016. Retrospectively registered.
Conclusion: The esophageal motility disorders co-occurring with endoscopic and histological anomalies do not significantly affect the severity of dysphagia, however, in the case of patients with ERD and SR and concomitant UES insufficiency, this motor dysfunction has a significant impact on the reduction in the patients’ quality of life. Although no specific esophageal motility pattern typical of EoE, ERD and SR has been identified, comparative assessment of manometric features may have a potential role in differential diagnosis.
To analyze pre to posttreatment voice changes regarding the type of reflux in patients with acid, weakly acid or alkaline laryngopharyngeal reflux (LPR).
Esophageal sphincter augmentation (ESA) has been shown to significantly improve gastroesophageal reflux disease (GERD) symptoms in patients with moderate-severe GERD. The indication for ESA currently excludes patients with moderate-severe GERD with prior bariatric surgery or partial gastrectomy.
Roux-en-Y gastric bypass (RYGBP) is the preferred procedure for morbidly obese patients with gastroesophageal reflux disease (GERD). Vertical sleeve gastrectomy (VSG) may worsen GERD postoperatively. We assessed the diagnostic yield and clinical impact of routine comprehensive preoperative evaluation.
CONCLUSION: Our study describes the process of conceptualization, design and production of a practical, safe, low-cost continuous supraglottic suction device without representing antibiotic pressure, which appears to be a new complementary preventive strategy for the standard management of intubated and mechanically ventilated patients.PMID:34675695 | PMC:PMC8502029 | DOI:10.2147/MDER.S328485
CONCLUSIONS: Most patients who underwent EGD for refractory GERD symptoms alone did not have pathological findings requiring a change in management. Screening EGD for patients only with persistent reflux symptoms should not be routinely recommended.PMID:34669534 | DOI:10.1080/00365521.2021.1988141
ConclusionsFew complementary examinations are systematically needed and their performance is increased if they are oriented by a careful history and physical examination which then allows to advance in the diagnostic procedure.Key messagesComplementary examinations are largely inconclusive and only a history and complete clinical examination can make it possible to advance in the diagnostic procedure.Infants who demonstrate historical or physical examination elements suggestive of a specific etiology of their event, such as gastroesophageal reflux, should be evaluated and treated accordingly.
ConclusionsOver the study period, there was an increase in the incidence of oesophageal cancer in England. The largest increase was seen in rates of adenocarcinoma. Considering obesity has a strong temporal association with oesophageal adenocarcinoma, further research is needed to understand the biological mechanisms of this association to inform public health efforts to reduce the prevalence of obesity.Key messagesFurther research and analysis of routinely collected data on histological subtypes of oesophageal cancer can provide insight into the increasing trend in incidence.Considering the strong association between obes...
CONCLUSIONS: Standardizing the gastric sleeve technique in the bariatric surgery services, taking into account the technical factors associated with post-operative GERD de novo, decreases its appearance as evaluated by the GerdQ scale.PMID:34665173 | DOI:10.24875/CIRU.20000642