1. Correlation of parameters of technology and physicochemistry with fragrance water stabilityin volatile oil of Caryophylli Flos
Chinese Traditional and Herbal Drugs 2016;47(22):3975-3981
Objective: Using the improved volatile oil extractor to extract the essential oil of Caryophylli Flosand emulsified fragrance water. To research the correlations of the emulsified fragrance water from different condensing temperature and different temperature with the physicochemical parameters under the different temperature of essential oilin Caryophylli Flos;The results help a lot for the optimization of extraction process parameters of essential oil in Caryophylli Flos. Methods: Using surface tension tester, determination of viscometer to measure viscosity, surface tension, interfacial tension under different temperature of essential oil density in Caryophylli Flos, using stability analyzer to determine the emulsified fragrance water stability within 1 h and particle sizeunder different extraction temperature and different collecting temperature. Using multivariate data analysis to research the relationship between the essential physical and chemical parameters with emulsified fragrance water stability.Results: Relativedensity, viscosity, and surface tension reduced as the temperature of essential oil in Caryophylli Flos increased gradually, interfacial tension with increased first and then decreased as temperature increased. Turbiscan Stability Index(TSI) of the volatile oil emulsified fragrance water was negative correlation with the condensation temperature and interfacial tension, and was positive correlation with collecting temperature, density, viscosity, and surface tension. Conclusion: During the extraction process, temperature, interfacial tension, and condensation temperature of volatile oil in Caryophylli Floswere collected with aromatic water, and TSI hascertain relevance. Through controlling the collected temperature, condensation temperature, interfacial tension, and oil/water separation speed of volatile oil emulsified fragrance water have been changed and the guidance to the extraction process has been provided.
2.Clinicopathologic analysis of 102 cases of mixed epithelial and mesenchymal tumors of the uterus
Xiao-Duan CHEN ; Hai-Yan SHI ; Xiao-Fei ZHANG ;
Chinese Journal of Obstetrics and Gynecology 2001;0(04):-
Objective To study the clinical and pathologic features,histological criteria and pathologic factors contributing to diagnosis of mixed epithelial and mesenchymal tumors(mixed m?llerian tumors,MMT)of the uterus.Methods A retrospective study of 102 cases of MMT of the uterus (74 adenofibromas including 9 recurrent cases,3 atypical polypoid adenomyomas,2 carcinofibromas,10 adenosareomas and 13 carcinosarcomas)was undertaken.Clinical records,gross features and tissue slices were reviewed.The follow-up data were analysed.Results The most common symptom was vaginal bleeding.Clinical signs included pelvic mass,uterine polyps,and enlarged uterus.Benign MMT usually presented as exophytic polypoid masses extending into the uterine cavity or protruding through the external os,often broad-based,lobulated and papillary.It was hard to distinguish low-grade malignant MMT from the benign ones by gross appearance.High-grade malignant MMT had the common gross features of carcinoma and sarcoma.Histologically,MMT showed a biphasic differentiation of mesenchymal and epithelial components.MMT were classified according to whether these elements were benign or malignant.Nine cases of adenofibroma without unique features for the diagnosis of adenosarcoma recurred at postoperative intervals of 3 to 96 months.Recurrent tumors were almost always confined to the original site.Conclusions Uterine MMT tumors according to WHO diagnostic criteria are not rare.The differential diagnosis depends on a multifactorial analysis.The recurrent adenofibromas may be a kind of borderline tumors with benign appearances and malignant behavior.
3.MRI diagnosis of myxoid liposarcoma of extremities
Zhao-Hui ZHANG ; Quan-Fei MENG ; Xiao-Ling ZHANG ;
Chinese Journal of Radiology 2001;0(01):-
Objective To explore the clinical and MR imaging features of myxoid liposarcoma.Methods Clinical and MR imaging data of 7 patients with histologically confirmed myxoid liposarcomas on extremities were retrospectively analyzed.The age of the patients ranged from 41 to 59 years with a median age of 51 years.Results Three tumors occurred in thigh,two in calf,one in foot and one in shoulder.Six tumors were situated deeply,and one was superficial.On T_1-weighted images,all 7 tumors showed predominant isointense or slightly hypointense signals relative to muscle,with 6 having lacy,linear or amorphous loci of high signal intensity.The major portion of each tumor displayed hyperintense signals compared with fat on T_2-weighted images.Following the injection of Gd-DTPA,all tumors showed inhomogenous and strong enhancement.All tumors had septa and were well defined without obvious surrounding edema and invasion of the adjacent bones.Conclusion Myxoid liposarcomas usually show predominant isointense or slightly hypointense signals relative to muscle on T_1-weighted images and hyperintense signals relative to fat on T_2-weighted images.The fat components within the tumors may be identified as linear,lacy or amorphous foci of high signal intensity on T_1-weighted images.The contrast enhancement of the mvxoid liposarcomas is usually pronounced and heterogeneous.
4. Effect of Tannic Acid on Transport of Diaco-Aconitine in Caco-2 Cell Model
Chinese Pharmaceutical Journal 2019;54(14):1142-1147
OBJECTIVE: To study the effects of three aconitine transporters in Caco-2 cells and tannin (tannic acid) in Terminalia on the transport of three di-ester aconitine (aconitine, meoaconitine and hypaconitine) in Aconitum chinensis. METHODS: The components were detected by UPLC/Q exactive MS in terms of the cumulative transshipment volume of three aconitine and the apparent permeability coefficient Papp as indicators to investigate the two-way transport behaviors of three aconitine in the Caco-2 cell model, as well as the proportion of tannic acid, and the changes of the transport behaviors of three aconitine. RESULTS: There was a positive correlation between the cumulative transshipment volume of aconitine and the incubation time. There was no statistical difference in Papp values of the three aconitine, and the efflux effect was significantly stronger than the absorption, with an external ratio close to 1.5.When the compatibility ratio of three aconitine with tannic acid was 1∶1 and 1∶0.5, the absorption of aconitine was significantly inhibited (P was 0.05), but the transport behavior with effluent was not significantly affected. CONCLUSION: Aconitine, meoaconitine, and hypaconitine in P. aeruginosa are mainly passive transporters, and may involve in efferent proteins, which are a kind of drug with good absorption.When mixed with tannic acid, the absorption and transshipment of three kinds of alkali were significantly reduced, which proves that Terminalia chebula could detoxify aconitum by inhibiting its absorption.
5.Recent studies on the natural products with xanthine oxidase inhibitory effect
Nan JIANG ; Xiao-lin ZHANG ; Jin-ying TIAN ; Fei YE
Acta Pharmaceutica Sinica 2021;56(5):1229-1237
Xanthine oxidase (XOD), catalyzing purine metabolism, is the key enzyme in uric acid (UA) biosynthesis, and becomes an important target for hyperuricemia treatment. The inhibition on XOD plays an important role in the treatment of hyperuricemia-related diseases, such as gout, as well as oxidative stress-induced tissue injury. Here, studies on the natural products with XOD inhibition are reviewed.
6. Use of a quality by design approach to optimize andrographolide solid lipid nanaparticles
Chinese Traditional and Herbal Drugs 2015;46(2):194-200
Objective: The aim of this investigation was to use a quality by design (QbD) approach to optimize andrographolide solid lipid nanoparticles (And-SLNs). Methods: The And-SLNs were prepared by melt-emulsion and followed by high pressure homogenization methods. The And-SLNs with ideal encapsulation efficiency (EE) and particle size distribution were used various experimental statistical design modules. Plackett-Burman design for independent variables was first conducted to prescreen various formulation and process variables during the development of SLNs. Selected primary variables were further optimized by Box-Behnken design. The particle size distribution, Zeta potential, morphology, and in vitro drug release behavior of And-SLNs were studied by Malvern Particle Size Analyzer and Transmission Electron Microscope (TEM), respectively. Results: The EE, particle size, and Zeta potential of And-SLNs were found to be (91.4 ± 3.7)%, (258.4 ± 42.1) nm, and (-36.1 ± 3.4) mV, respectively. The And-SLNs were found to be small and spherical with uniform particle size and smooth surface as seen in TEM. The in vitro accumulated release of And reached up to 52.4% within 48 h. Conclusion: This study demonstrates that the QbD approach could optimize the formulation and process variables to achieve favorable responses for And-SLNs.
7.Significance and analysis of unconcentrated urine sample from patients with pregnancy induced hypertension syndrome by protein electrophoresis
Xiao-Huan ZHAO ; Shi-Ming LV ; Yan ZHANG ; Fei ZHENG ;
Chinese Journal of Laboratory Medicine 2003;0(10):-
Objective To investigate the relationship between proteinuria components and the severity of pregnancy induced hypertension syndrome (PIH), the unconcentrated urine samples from patients with PIH were analyzed on proteinuria components by electrophoresis.Methods Proteinuria components were analyzed by sodium dodecyl sulfate-agarose gel electrophoresis (SDS-AGE) in unconcentrated urine samples from PIH patients (PIH group,n=114) and normal third trimester pregnant women (control group,n=110).Results Eleven kinds of urinary protein were detected in the PIH group and four in the control group. The results showed positive relationship between the urine protein component complexity and the severity of PIH (P
8.Effect of the Traditional Chinese Medicine Combined with Traction and Physical Therapeutic on Lumbar Intervertebral Discprolapse
Xiao ZHANG ; Bo-lin GU ; Yong-fei WANG
Chinese Journal of Rehabilitation Theory and Practice 2006;12(2):156-157
ObjectiveTo observe the curative effect of the Chinese traditional medicine combined with traction and physical therapeutic on lumbar intervertebral discprolapse (LIDP).Methods95 LIDP patients were randomly divided into the treatment group (50 cases) and control group (45 cases). Patients of the treatment group were treated by Chinese traditional medicine, traction and physical therapy. Patients of the control group were treated by traction and physical therapy only.ResultsThe total clinical effective rate of the treatment group was 100%, but that of the control group was 75.6%, there was a significant difference between two groups (P<0.05).ConclusionChinese traditional medicine therapeutics is an effective non-surgical therapeutics for LIDP.
9.Study on NPM1 and IDH mutations in childhood acute myeloid leukemia.
Li ZHANG ; Hui-min ZENG ; Xiao-fei AI
Chinese Journal of Hematology 2013;34(5):449-452
Adolescent
;
Child
;
Child, Preschool
;
Female
;
Humans
;
Infant
;
Isocitrate Dehydrogenase
;
genetics
;
Leukemia, Myeloid, Acute
;
genetics
;
Male
;
Mutation
;
Nuclear Proteins
;
genetics
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Prognosis
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Treatment Outcome
10.Antiepileptic treatment and blood lactate level alteration in patients with myoclonic epilepsy with ragged-red fibers (MERRF) syndrome in a Chinese family
Fei Xiao ; Jia Li ; Xiaogang Zhang ; Xuefeng Wang
Neurology Asia 2013;18(1):47-51
Background: Myoclonic epilepsy with ragged-red fi bers (MERRF) is a type of mitochondrial
encephalomyopathy, clinical experience with the antiepileptic treatment for myoclonus in MERRF is
still limited. Myoclonus appears to be intractable, and some antiepileptic drugs may change the blood
lactate level. Objective: In this study, we report on two patients, a girl and her mother, both with
MERRF in a Chinese family. We aimed to study their myoclonus attack, response to AEDs and blood
lactate level. Methods: The diagnosis was based on muscle biopsies and a genetic test. We recorded
their myoclonus and detected alterations of blood lactate when the patients received antiepileptic
drugs. Results: The patients displayed substantial differences in their responses to antiepileptic drugs.
The mother exhibited a good response to valproic acid, although valproic acid is not recommended
for mitochondrial disease; however, her daughter was refractory to many antiepileptic drugs until
she received a combination treatment of levetiracetam and topiramate. We did not fi nd valproic acid,
levetiracetam or topiramate affected the blood lactate levels.
Conclusion: These fi ndings imply that not all MERRF patients are resistant to antiepileptic drugs, and
for those who are intractable, combination treatment involving levetiracetam and topiramate may be
effective for treating myoclonus in MERRF and does not worsen lactic acidosis.