Following the publication of this article, an interested reader drew to the authors' attention that the flow cytometric (FCM) plots in Fig. 2A on p. 2278 showing the 'Dasatinib' and 'CA‑4' experiments were duplicates of each other.
View Article and Find Full Text PDFThe effect of oxygen therapy on the prognosis of chronic obstructive pulmonary disease (COPD) with nocturnal hypoxemia (NOD) has been controversial. Therefore, this study systematically evaluated the relevant literature and included it into randomized controlled studies for meta-analysis to evaluate the efficacy and prognosis. We searched PubMed, EMBASE, web of science, Cochrane, China HowNet and Wanfang database for the literature on the prognosis of COPD patients with simple NOD from the establishment of the database to 30 June 2022.
View Article and Find Full Text PDFThe mammalian target of rapamycin (mTOR) is a serine-threonine kinase involved in cellular innate immunity, metabolism, and senescence. FK506-binding protein 12 (FKBP12) inhibits mTOR kinase activity via direct association. The FKBP12-mTOR association can be strengthened by the immunosuppressant rapamycin, but the underlying mechanism remains elusive.
View Article and Find Full Text PDFMounting evidences indicated that elevated iron levels in the substantia nigra (SN) have been concerned as the underlying mechanisms of neurodegenerative diseases, including Parkinson's disease (PD). The present study used the 1-Methyl-4-phenyl-1, 2, 3, 6 -tetrahydropyridine (MPTP)-treated cynomolgus monkeys for PD to evaluate the usability of SWI for assessing iron deposition in the cerebral nuclei of PD. The results showed that susceptibility-weighted imaging (SWI) phase values of the ipsilateral (MPTP-lesion side) SN of MPTP-treated monkeys were lower than those in the contralateral SN of MPTP-treated monkeys and the same side of Control monkeys, suggesting that iron deposition were elevated in the affected side SN of MPTP-treated monkeys.
View Article and Find Full Text PDFObjective: To analyze the microstructure of brain white matter according to diffusion tensor imaging (DTI) based on tract-based spatial statistics (TBSS) in early Parkinson's disease (PD).
Materials And Methods: A total of 31 age- and sex-matched early PD patients and 22 healthy volunteers were recruited in the present study. DTI was performed, and the data analyzed with fsl4.
Afr J Tradit Complement Altern Med
August 2017
Background: Acute Lung Injury (ALI) results into severe inflammation and oxidative stress to the pulmonary tissue. Rhamnazin is a natural flavonoid and known for its antioxidant and anti-inflammatory properties.
Materials And Methods: The antioxidative and anti-inflammatory properties rhamnazin were tested for protection against the acute lung injury.
Bioorg Med Chem Lett
March 2017
BACKGROUND: Primary benign and borderline (BB) brain tumors have been reportable since 2004 by population-based cancer registries in the United States. Because these tumors often are diagnosed clinically at nonhospital settings, underreporting is a big concern. Despite this, the magnitude and geographic variations in underreporting are unknown.
View Article and Find Full Text PDFAim: To investigate the value of conventional MRI techniques combined with MR sialography on T2-3D-DRIVE in the diagnosis of Sjögren syndrome (SS).
Methods: 107 patients were divided into SS group and non-SS group. Conventional MRI techniques, such as T1WI, T2WI, and STIR images were used for changes of fat signal in the parotid gland, while the MR sialography were used for ducts dilation of the parotid gland.
Objective: The current study was designed to evaluate the sensitivity, feasibility, and effectiveness of the pallidal index (PI) serving as a biomarker of brain manganese (Mn) accumulation, which would be used as an early diagnosis criteria for Mn neurotoxicity.
Methods: The weighted mean difference (WMD) of the PI between control and Mn-exposed groups was estimated by using a random-effects or fixed-effects meta-analysis with 95% confidence interval (CI) performed by STATA software version 12.1.
Increased manganese (Mn) exposure is known to cause cognitive, psychiatric and motor deficits. Mn exposure occurs in different occupational settings, where the airborne Mn level and the size of respirable particulates may vary considerably. Recently the importance of the role of the cerebral cortex in Mn toxicity has been highlighted, especially in Mn-induced neuropsychological effects.
View Article and Find Full Text PDFOverexposure to manganese (Mn) may lead to parkinsonian symptoms including motor deficits. The main inhibitory neurotransmitter gamma-aminobutyric acid (GABA) is known to play a pivotal role in the regulation and performance of movement. Therefore this study was aimed at testing the hypothesis that an alteration of GABA following Mn exposure may be associated with fine motor performance in occupationally exposed workers and may underlie the mechanism of Mn-induced motor deficits.
View Article and Find Full Text PDFA new dicoumarinyl ether, 3-hydroxy-6-methoxy-7,7'-dicoumarinyl ether (1), was isolated from the roots of Stellera chamaejasme L, together with the known compound umbelliferone (2). Their structures were determined on the basis of spectroscopic techniques, including IR, NMR, and HR-ESI-MS.
View Article and Find Full Text PDFObjective: To compare the difference in the efficacy on post-stroke constipation between acupuncture therapy of regulating qi circulation of fe-organ and Shengxue Tongbian Capsules.
Methods: Seventy-five patients of post-stroke constipation were randomized into an acupuncture group (39 cases) and a Chinese medicine group (36 cases). The unit mode comprehensive therapy of stroke was adopted as basic treatment in the two groups.
Background: The effect of statin treatment on the long-term prognosis in patients with chronic heart failure (CHF) remains uncertain. This study aimed to answer the question by a meta-analysis.
Methods: The Cochrane databases, MEDLINE and EMBASE, were systematically searched.
The present study showed that the combination of dasatinib and combretastatin A-4 (CA-4) exhibited synergistic cytotoxicity in multiple types of cancer, including ovarian, hepatocellular, lung and prostate carcinoma. The enhanced apoptosis induced by dasatinib plus CA-4 was accompanied by a greater extent of mitochondrial depolarization, caspase-3 activation and PARP cleavage in HO-8910 cells. Furthermore, elevated expression of Mcl-1 led to a reduced apoptosis induced by dasatinib plus CA-4, highlighting that downregulated Mcl-1 was necessary for the potentiating effect of dasatinib to CA-4-triggered apoptosis.
View Article and Find Full Text PDFZhejiang Da Xue Xue Bao Yi Xue Ban
July 2012
Objective: To develop a method for simultaneous assay of propulsion and absorption in small intestine.
Methods: The mice were administrated through gastric tube with mixed reagents containing 0.12% phenol red, D-xylose (1.
A new 3,3''-biflavanone, sikokianin D (1), was isolated from the roots of Wikstroemia indica, together with two known compounds. Their structures were elucidated by chemical evidence and spectral analyses, including HR-ESI-MS, and 1D- and 2D-NMR techniques.
View Article and Find Full Text PDFZhejiang Da Xue Xue Bao Yi Xue Ban
March 2012
Objective: To establish a high-performance liquid chromatography-mass spectrometry (HPLC-MS/MS) method for detection of nine penicillin residues in milk.
Methods: The samples were precipitated with acetonitrile and degreased with n-hexane for pre-processing. The chromatography was performed by reversed-phase HPLC in a C₁₈ column and eluted gradiently on line for 11 min.
Zhejiang Da Xue Xue Bao Yi Xue Ban
July 2011
Objective: To extract and isolate the component from myrsinane-type diterpenes of Euphorbia prolifera.
Methods: Petroleum extraction and chromatography on the silica gel were used to extract and isolate the diterpenes of Euphorbia prolifera.
Results: Eight components of myrsinol diterpenes were isolated, namely: Proliferin A(1), Proliferin B (2), Proliferin C(3), Proliferin D(4), Euphorprolitherin B(5), Euphorprolitherin D(6), SPr5(7) and 14-desoxo-3-O-prorionyl-5, 15-di-O-acetyl-7-O-nicotinoyl-myrsinol-14β-acetate(8).
Zhejiang Da Xue Xue Bao Yi Xue Ban
July 2011
Objective: To investigate the effects of purple sweet potato flavonoids (PSPF) on blood glucose and lipids levels in diabetic rats.
Methods: Diabetes was induced by intraperitoneal injection of streptozotocin (STZ, 65 mg.kg(-1)) in rats.
A new 3, 3"-biflavanone, neochamaejasmin C (1), was isolated from the roots of Stellera chamaejasme L., together with four known compounds. Their structures and configurations were elucidated by spectroscopic methods, including 2D-NMR techniques.
View Article and Find Full Text PDFZhonghua Yu Fang Yi Xue Za Zhi
September 2009
Objective: Variations of the signal intensities in the magnetic resonance (MR) T(1)-weighted image (T(1)WI) of globus pallidus among manganese(Mn)-exposed workers were explored to provide a scientific basis for exposed biomarker of manganese-injured central nervous system (CNS).
Methods: The brain MR T(1) and T(2) WI in eighteen male asymptomatic Mn-exposed, eight manganism and nine healthy control workers were examined routinely by adopting a 1.5 Tesla signal superconducting system.
Magnetic resonance imaging (MRI) and (1)H magnetic resonance spectroscopy ((1)H-MRS) have been used in clinics for diagnosis of chronic liver diseases. This study was designed to investigate the relationship between MRI/MRS outcomes and the severity of liver damage. Of 50 patients examined, the MRI signal intensity in the globus pallidus as determined by pallidus index (PI) increased as the disease severity (scored by Child Pugh ranking) worsened (r = 0.
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