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1.
Chin J Integr Med ; 2020 Jan 10.
Artigo em Inglês | MEDLINE | ID: mdl-31919749

RESUMO

OBJECTIVE: To evaluate the effects of a 48-week course of adefovir dipivoxil (ADV) plus Chinese medicine (CM) therapy, namely Tiaogan Jianpi Hexue () and Tiaogan Jiedu Huashi () fomulae, in hepatitis B e antigen (HBeAg)-positive Chinese patients. METHODS: A total of 605 HBeAg-positive Chinese CHB patients were screened and 590 eligible participants were randomly assigned to 2 groups in 1:1 ratio including experimental group (EG, received ADV plus CM) and control group (CG, received ADV plus CM-placebo) for 48 weeks. The major study outcomes were the rates of HBeAg and HBV-DNA loss on week 12, 24, 36, 48, respectively. Secondary endpoints including liver functions (enzymes and bilirubin readings) were evaluated every 4 weeks at the beginning of week 24, 36, and 48. Routine blood, urine, and stool analyses in addition to electrocardiogram and abdominal B scan were monitored as safety evaluations. Adverse events (AEs) were documented. RESULTS: The combination therapy demonstrated superior HBeAg loss at 48 weeks, without additional AEs. The full analysis population was 560 and 280 in each group. In the EG, population achieved HBeAg loss on week 12, 24, 36, and 48 were 25 (8.90%), 34 (12.14%), 52 (18.57%), and 83 (29.64%), respectively; the equivalent numbers in the CG were 20 (7.14%), 41 (14.64%), 54 (19.29%), and 50 (17.86%), respectively. There was a statistically significant difference between these group values on week 48 (P<0.01). No additional AEs were found in EG. Subgroup analysis suggested different outcomes among treatment patterns. CONCLUSION: Combination of CM and ADV therapy demonstrated superior HBeAg clearance compared with ADV monotherapy. The finding indicates that this combination therapy may provide an improved therapeutic effect and safety profile (ChiCTR-TRC-11001263).

2.
Am J Transl Res ; 11(11): 7104-7114, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31814913

RESUMO

Accumulating evidence has suggested the involvement of long noncoding RNAs (lncRNAs) on the acute myeloid leukemia (AML). Therefore, this study aimed to investigate the unknown function of lncRNA Prostate cancer-associated transcript-1 (PCAT-1) in AML cells. Our data found that PCAT-1 was highly expressed in AML-M1/2 and AML-M3 patients than normal controls and its expression was significantly up-regulated in AML cell lines Kasumi-6 and HL-60. The functional experiments demonstrated that knockdown of PCAT-1 remarkably inhibited proliferation, arrested cell cycle progression and triggered apoptosis of AML cells. Mechanistically, we revealed that PCAT-1 could directly interact with FZD6 protein to regulate its stability. Overexpression of FZD6 partly abolished the effects of PCAT-1 silencing on AML cells. Our integrated experiments then suggested that PCAT-1 could activate the Wnt/ß-catenin signaling pathway in an FZD6-dependent manner. Taken together, the present study indicated that PCAT-1 interacting with FZD6 to activate Wnt/ß-catenin signaling, which may play an important role in the pathogenesis of AML.

3.
Food Funct ; 10(11): 7356-7365, 2019 Nov 01.
Artigo em Inglês | MEDLINE | ID: mdl-31650134

RESUMO

Rosmarinus officinalis Linn. is a kind of medicinal and edible homologous plant, which is popular in the Mediterranean region with a significant effect on mind tranquilization, anti-oxidation, and metabolic improvement. However, the hypolipidemic effects and mechanism of rosemary ethanol extract (RO) and their metabolites are less known. In this study, the hypolipidemic effects of RO and its active compounds were clarified. The results showed that RO, rosmarinic acid (RA) and carnosic acid (CA) significantly reduced the contents of liver triglyceride (TG), total cholesterol (TC), free fatty acids (FFA) and improved cell hypertrophy, vacuolation, and cell necrosis in the liver of orotic acid induced non-alcoholic fatty liver disease (NAFLD) model rats. The mechanism and related pathways of RO and its main metabolites against lipid disorder were related to the up-regulation of the phosphorylation of adenosine 5'-monophosphate(AMP)-activated protein kinase (AMPK) and the inhibition of the sterol regulatory element binding protein-1c (SREBP-1c) cracking into the nucleus, following the down-regulation of fatty acid synthesis. In conclusion, our study demonstrates that RA and CA are active substances of RO, and provides scientific evidence to support functional food product development for improving NAFLD.

4.
Chem Pharm Bull (Tokyo) ; 67(7): 634-639, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31257318

RESUMO

The mango tree (Mangifera indica L.) is a tropical, perennial, woody evergreen plant belonging to the Anacardiaceae. In traditional medicine, dried mango tree leaves were considered useful in treating diabetes and respiratory infections. In this paper, we review the phytochemical research on mango leaves and the mechanisms of benzophenones in lipid metabolism regulation. Thirty-six benzophenones have been isolated from mango leaves; among them, mangiferin is the major compound. Structure-activity relationships of benzophenones in lipid accumulation and the mechanisms of action of mangiferin in lipid metabolism are summarized. After oral administration, mangiferin is partly converted to its active metabolite, northyariol, which contributes to the activation of sirtuin-1 and liver kinase B1 and increases the intracellular AMP level and AMP/adenosine triphosphate ratio, followed by AMP-activated protein kinase phosphorylation, leading to increased phosphorylation of sterol regulatory element-binding protein-1c. Current evidence supports ethnopharmacological uses of mango leaves in diabetes and points toward potential future applications.


Assuntos
Benzofenonas/química , Mangifera/química , Proteínas Quinases Ativadas por AMP/metabolismo , Animais , Benzofenonas/isolamento & purificação , Benzofenonas/farmacologia , Metabolismo dos Lipídeos/efeitos dos fármacos , Mangifera/metabolismo , Folhas de Planta/química , Folhas de Planta/metabolismo , Relação Estrutura-Atividade , Xantonas/administração & dosagem , Xantonas/química , Xantonas/metabolismo , Xantonas/farmacologia
5.
Eur J Ophthalmol ; : 1120672119833896, 2019 Mar 04.
Artigo em Inglês | MEDLINE | ID: mdl-30832500

RESUMO

PURPOSE:: To report the laboratory findings, management strategies, and visual outcomes of culture-proven exogenous fungal endophthalmitis in North China. METHODS:: The microbiological and treatment records of patients with culture-positive exogenous fungal endophthalmitis who visited the Affiliated Hospital of Qingdao University from January 2012 to December 2016 were reviewed. RESULTS:: A total of 39 eyes (39 patients) were identified over a 5-year period. Exogenous fungal endophthalmitis was associated with penetrating trauma in 22 eyes (56.4%), fungal keratitis in 15 eyes (38.5%), and intraocular surgery in 2 eyes (5.1%). Hyphae were found in 29 of 37 smear samples (78.4%) by direct microscopic examination. Fungal pathogens cultured from 39 samples were identified as 10 genera and 15 species. Filamentous fungi (molds) accounted for 94.9% (37 samples), including Fusarium (19, 48.7%) and Aspergillus (11, 28.2%). Most keratitis cases were caused by Fusarium (11 of 15; 73.3 %). Aspergillus was isolated from nine penetrating ocular trauma cases (9 of 22; 40.9%). Three eyes receiving evisceration had fungal and bacteria coinfection (3 of 39, 7.7%) with Aspergillus and Bacillus. At least, one surgical intervention was performed in all 39 eyes and 28 (71.8%) eyes underwent two or more procedures, including surgeries and intraocular injections. Twenty-nine patients received intraocular antifungal therapy with amphotericin B and/or voriconazole. Visual acuity at discharge from the hospital was significantly better than the initial visual acuity ( p < 0.001). Final vision of 20/400 or better was achieved in 22 (56.4%) eyes. CONCLUSIONS:: This study highlighted the differences between clinical categories of exogenous fungal endophthalmitis. Trauma was the major etiological factor. Molds were the most common pathogens, with Fusarium ranking first, followed by Aspergillus. Fungal and bacterial coinfection mostly occurred after metal penetrating trauma, and Bacillus was the primary bacterial pathogen. Coinfection may be one reason of evisceration. Immediate intravitreal antifungal therapy combined with vitrectomy was effective for exogenous fungal endophthalmitis. Amphotericin B and voriconazole were commonly used antifungal agents.

6.
Infect Dis Poverty ; 7(1): 106, 2018 Oct 20.
Artigo em Inglês | MEDLINE | ID: mdl-30340513

RESUMO

BACKGROUND: Tuberculosis (TB) is still one of the most serious infectious diseases in the mainland of China. So it was urgent for the formulation of more effective measures to prevent and control it. METHODS: The data of reported TB cases in 340 prefectures from the mainland of China were extracted from the China Information System for Disease Control and Prevention (CISDCP) during January 2005 to December 2015. The Kulldorff's retrospective space-time scan statistics was used to identify the temporal, spatial and spatio-temporal clusters of reported TB in the mainland of China by using the discrete Poisson probability model. Spatio-temporal clusters of sputum smear-positive (SS+) reported TB and sputum smear-negative (SS-) reported TB were also detected at the prefecture level. RESULTS: A total of 10 200 528 reported TB cases were collected from 2005 to 2015 in 340 prefectures, including 5 283 983 SS- TB cases and 4 631 734 SS + TB cases with specific sputum smear results, 284 811 cases without sputum smear test. Significantly TB clustering patterns in spatial, temporal and spatio-temporal were observed in this research. Results of the Kulldorff's scan found twelve significant space-time clusters of reported TB. The most likely spatio-temporal cluster (RR = 3.27, P <  0.001) was mainly located in Xinjiang Uygur Autonomous Region of western China, covering five prefectures and clustering in the time frame from September 2012 to November 2015. The spatio-temporal clustering results of SS+ TB and SS- TB also showed the most likely clusters distributed in the western China. However, the clustering time of SS+ TB was concentrated before 2010 while SS- TB was mainly concentrated after 2010. CONCLUSIONS: This study identified the time and region of TB, SS+ TB and SS- TB clustered easily in 340 prefectures in the mainland of China, which is helpful in prioritizing resource assignment in high-risk periods and high-risk areas, and to formulate powerful strategy to prevention and control TB.


Assuntos
Tuberculose/epidemiologia , China/epidemiologia , Geografia Médica , História do Século XXI , Humanos , Vigilância em Saúde Pública , Estações do Ano , Análise Espaço-Temporal , Tuberculose/história , Tuberculose/microbiologia , Tuberculose/prevenção & controle
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