Ultrasound has been widely used in industry due to its high energy and efficiency. This study optimized the ultrasonic-assisted extraction (UAE) process of frosted figs pectin (FFP) using response surface methodology (RSM), and further investigated the effect of ultrasonic power on the structural characteristics and antioxidant activities of FFPs. The UAE method of FFP through RSM was optimized, and the optimal extraction process conditions, particle size of 100 mesh, pH value of 1.
View Article and Find Full Text PDFWorld J Gastrointest Oncol
December 2022
Background: Increasing evidence have shown that regional lymph node metastasis is a critical prognostic factor in gastric cancer (GC). In addition, lymph node dissection is a key factor in determining the appropriate treatment for GC. However, the association between the number of positive lymph nodes and area of lymph node metastasis in GC remains unclear.
View Article and Find Full Text PDFHydroxyapatite (HAp) nanoparticles stabilized Pickering emulsions were prepared by dichloromethane (CH Cl ) dissolved poly(L-lactic acid) (PLLA) as the oil phase and the deionized water with different concentrations of cetyltrimethyl-ammonium bromide (CTAB) as the aqueous phase. Effect of CTAB concentration on emulsions type and stability were studied. The emulsion type underwent a two-phase inversion, and emulsion stability increased first and then decreased with increasing CTAB concentrations.
View Article and Find Full Text PDFThe present study was conducted to investigate the clinical significance of caffeine and aminophylline in the treatment of premature infants with apnea under varying conditions of oxygen (O) delivery. The clinical data of 120 premature infants with apnea treated with oxygen therapy and either caffeine citrate (20 mg/kg/day; n=77) or aminophylline (10 mg/kg/day; n=43) were retrospectively examined. The therapeutic performance of the drugs after the completion of the treatment was evaluated primarily according to the risk of recurrent episodes of apnea, the changes in the duration and concentration of inhaled O and the incidence of complications.
View Article and Find Full Text PDFWe have immobilized poly(ethylene glycol) (PEG) on the surfaces of poly(lactic-co-glycolic acid) (PLGA) nanoparticles by two different chemical methods, i.e., SOCl2 halogenate-alcoholysis and DCC dehydration.
View Article and Find Full Text PDFBackground: Cancer stem cells (CSCs) accelerate the growth of hepatocellular carcinoma (HCC) residual after incomplete radiofrequency ablation (In-RFA). The present study aimed to detect the effects of In-RFA on stemness transcription factors (STFs) expression which are important for the production and function of CSCs, and to find which STFs promote HCC stemness after In-RFA.
Methods: HepG2 cells were used for in vitro and in vivo studies.
Zhongguo Dang Dai Er Ke Za Zhi
January 2015
Objective: To investigate the association of childhood hemophagocytic syndrome (HPS) with human parvovirus B19 (HPVB19) infection, and to analyze the clinical features of this disease.
Methods: ELISA and quantitative real-time PCR were used to detect HPVB19-IgM, HPVB19-IgG and HPVB19-DNA in 65 children with HPS (HPS group) and 65 healthy children (control group). The HPS group was divided into HPVB19-infected (n=14) and non-infected (n=51) groups according to the detection results of HPVB19-DNA.
Objective: To observe the expression of matrix metalloproteinase-9 (MMP-9) and mouse double minute 2 homolog (MDM2) in the oncogenesis of lung cancer in rats and to explore their clinical value.
Methods: A total of 140 rats were selected, of which 20 were selected randomly as the control group; and the remaining 120 as the observation group. The observation group was injected with benzopyrene to establish diseases model such as tissue proliferation, abnormal proliferation and lung cancer.
Background: Baroreflex gain increase up closely to adult level during initial postnatal weeks, and any interruption within this period will increase the risk of cardiovascular problems in later of life span. We hypothesize that this short period after birth might be critical for postnatal development of vagal ganglion neurons (VGNs).
Methods: To evaluate neuroexcitability evidenced by discharge profiles and coordinate changes, ion currents were collected from identified A- and C-type VGNs at different developmental stages using whole-cell patch clamping.
A novel diterpene alkaloid named honatisine (1) has been isolated from the whole plants of Delphinium honanense, along with six known alkaloids, siwanine E (2), isoatisine (3), atisine (4), delcorinine (5), uraphine (6), and nordhagenine A (7). Their structures were deduced on the basis of their spectral data. All of them were evaluated by a SRB assay for their cytotoxicity, and compound 1 showed a significant cytotoxic activity (IC(50) =3.
View Article and Find Full Text PDFUsing usual method, we got karyotype of hybrid pig (wild soar (male symbol) x domestic pig (female symbol)), C-band and approximate 174 bands of G-band, and we also obtained approximate 258 bands of high resolution G-band by micro-Colchicin method. The result indicate that the diploid chromosome number is 2n=38; there is polymorphism in C-band,and compared with domestic pig in G-band and high resolution G-band there is no distinguish difference. They belong to the same seed.
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