RESUMEN
BACKGROUND: This study will aim to assess the effectiveness and safety of electrical stimulation (ES) for the treatment of patients with benign prostatic hyperplasia (BPH). METHODS: PubMed, EMBASE, Web of science, Springer, Cochrane Library, PsycINFO, Allied and Complementary Medicine Database, CBM, and China National Knowledge Infrastructure will be retrieved from inception to the September 1, 2019. No language limitation will be applied to this study. Randomized controlled trials (RCTs) that assessed the effectiveness and safety of ES for the treatment of patients with BPH will be considered for inclusion. Literature selection, data collection, and risk of bias assessment will be conducted by 2 investigators independently. Statistical analysis will be carried out using RevMan 5.3 Software. RESULTS: This study will summarize high quality RCTs based on the present evidence of ES for the treatment of BPH in several aspects, including changes in urological symptoms, changes in prostate size, urodynamic parameters, quality of life, and number and severity of adverse events. CONCLUSION: The findings of this study will provide latest evidence to appraise whether ES is an effective and safety intervention for patients with BPH. PROSPERO REGISTRATION NUMBER: PROSPERO CRD42019157241.
Asunto(s)
Terapia por Estimulación Eléctrica/métodos , Hiperplasia Prostática/terapia , Humanos , Masculino , Metaanálisis como Asunto , Ensayos Clínicos Controlados Aleatorios como Asunto , Proyectos de Investigación , Revisiones Sistemáticas como Asunto , Resultado del TratamientoRESUMEN
Background: This study aims at investigating the effect of the Weifufang, an effective prescription for the treatment of gastric cancer developed by the Traditional Chinese Medicine (TCM)/Combination of TCM and Western Medicine Department of the Hunan Cancer Hospital, on gastric cancer xenografts in nude mice and its effect on the PTEN gene; it also aims at exploring the possible tumor suppression mechanism. Methods: Nude mice with xenografts were treated with different concentrations of the Weifufang for 2 weeks, and changes in tumor volume were observed. The histopathology of the tumor was detected by hematoxylin and eosin staining; PTEN gene expression in tumor tissues was detected by immunohistochemistry (IHC) and western blot. Results: After 2 weeks of treatment, tumor inhibition rates in the 5-flourouracil (5-FU) group, and in the Weifufang low-, middle-, and high-dose groups were 30.67%, 19%, 49.52%, and 29.36%, respectively. The IOD of the PTEN gene was detected by IHC. The values in the water group, the 5-FU group, and the Weifufang low-, middle-, and high-dose groups were 0.013 ± 0.004, 0.085 ± 0.062, 0.041 ± 0.024, 0.128 ± 0.032, and 0.061 ± 0.052, respectively. Except for the 5-FU group, the differences between the gastric compound middle dose-group and the other groups were statistically significant (p < 0.05). Results of PTEN expression detection by western blot: The expression levels in the water group, 5-FU group, and the Weifufang low-, middle-, and high-dose groups were 0.2240 ± 0.0172, 0.4200 ± 0.0228, 0.2760 ± 0.0163, 0.3840 ± 0.0133, and 0.3040 ± 0.0211, respectively. Except for the 5-FU group, differences between the Weifufang middle-dose group and the other groups were statistically significant (p < 0.05). Conclusion: The Weifufang may inhibit the growth of gastric cancer xenografts by upregulating PTEN gene expression. The middle-dose group had the best effect.
Asunto(s)
Adenocarcinoma/tratamiento farmacológico , Medicamentos Herbarios Chinos/administración & dosificación , Fosfohidrolasa PTEN/biosíntesis , Neoplasias Gástricas/tratamiento farmacológico , Adenocarcinoma/enzimología , Adenocarcinoma/genética , Adenocarcinoma/patología , Animales , Western Blotting , Línea Celular Tumoral , Relación Dosis-Respuesta a Droga , Fluorouracilo/administración & dosificación , Humanos , Inmunohistoquímica , Masculino , Ratones , Ratones Endogámicos BALB C , Ratones Desnudos , Fosfohidrolasa PTEN/genética , Distribución Aleatoria , Neoplasias Gástricas/enzimología , Neoplasias Gástricas/genética , Neoplasias Gástricas/patología , Ensayos Antitumor por Modelo de XenoinjertoRESUMEN
The effects of two nitrogen (N) concentrations combining with three phosphorus (P) concentrations on Isochrysis zhangjiangensis growth and formation of fatty acid (FA) were investigated in this study. Biomass concentration, mass fraction, and productivity of FA in I. zhangjiangensis were low in N-deprived media. Under both N and P sufficiency conditions, the intake of P and N was 40 times and 4.7 times of the normal algal growth condition, respectively, indicating I. zhangjiangensis had the potential for removing P and N from high concentrated N and P salinity wastewater. This study also showed that P deficiency in N sufficient medium increased the FA content, however, the difference between P limitation and P deprivation was not significant (P > 0.05). In N sufficient and P limitation medium, FA productivity was the highest, with a composition suitable for biofuel, so, this condition was the optimal condition for biodiesel production from I. zhangjiangensis.