AIM:By optical coherence tomography to observe macular thickness change characteristics and foveal images of patients with retinitis pigmentosa (RP).METHODS: From September 2014 to September 2016, 74 patients (148 eyes) with retinitis pigmentosa diagnosed in our hospital were selected, and 50 healthy subjects (100 eyes) as normal controls;two groups received optical coherence tomography and fundus camera detection.The images of the macular were obtained to observe and measure the thickness of the macular fovea and at 4mm temporal side, the center of papillo macular bundle.RESULTS:The results showed that: the thickness of the macular fovea and at 4mm temporal side of RP patients were the same as normal controls without statistically significant(P>0.05);the thickness of the center of papillo macular bundle was less than that of normal control with statistically significant (P<0.05).There were five types characteristics in OCT imges in RP patients: macular edema in 19 patients 38 eyes;retinal pigment epithelium and choroidal capillary thinning in 18 patients 36 eyes;retinal pigment epithelium atrophy in 12 patients 24 eyes;normal in 12 patients 24 eyes;different thickness of pigment epithelium layer in 13 patients 26 eyes.CONCLUSION: Optical coherence tomography (OCT) can be used to detect the macular lesions in a timely manner, to help understanding the development of the disease, and provide the clinical basis for the early diagnosis and treatment of patients.

The study is to develop a method to determine 3 batches leaves of Nauclea officinalis and stems of N. officinalis by HPLC. The differences between strictosamide contents and fingerprints was compared, then chromatographic peak of fingerprints was validated with the assistance of LC-MS. The strictosamide contents in stems of N. officinalis were higher than leaves of N. officinalis. The main chemical composition in leaves of N. officinalis and stems of N. officinalis were alkaloid which revealed by LC-MS. There are 7 chemical compositions were same between them, but the chemical composition in leaves of N. officinalis is more than stems of N. officinalis. This provides a scientific basis for the development of the potential medicinal value of leaves of N. officinalis and the sustainable utilization of N. officinalis.
Chromatography, High Pressure Liquid ; Drugs, Chinese Herbal ; chemistry ; isolation & purification ; Molecular Structure ; Plant Leaves ; chemistry ; Plant Stems ; chemistry ; Rubiaceae ; chemistry ; Spectrometry, Mass, Electrospray Ionization

The extracting technology of salidroside, tyrosol, crenulatin and gallic acid from Rhodiolae Crenulatae Radix et Rhizoma was optimized. With extraction rate of salidroside, tyrosol, crenulatin and gallic acid as indexes, orthogonal test was used to evaluate effect of 4 factors on extracting technology, including concentration of solvent, the dosage of solvent, duration of extraction, and frequency of extraction. The results showed that, the best extracting technology was to extract in 70% alcohol with 8 times the weight of herbal medicine for 2 times, with 3 hours once. High extraction rate of salidroside, tyrosol, crenulatin and gallic acid were obtained with the present technology. The extracting technology was stable and feasible with high extraction rate of four compounds from Rhodiolae Crenulatae Radix et Rhizoma, it was suitable for industrial production.
Chemical Fractionation ; methods ; Chemistry, Pharmaceutical ; methods ; Coumarins ; isolation & purification ; Drugs, Chinese Herbal ; isolation & purification ; Gallic Acid ; isolation & purification ; Glucosides ; isolation & purification ; Phenols ; isolation & purification ; Phenylethyl Alcohol ; analogs & derivatives ; isolation & purification ; Rhizome ; chemistry ; Rhodiola ; chemistry

To develop a LC-MS/MS method for the determination of five kinds of trace ginkgolic acids in diterpene ginkgolides meglumine injection materials, the column was Agilent ZORBAX Eclipse plus C18 (3.0 mm x 50 mm, 1.8 µm), and the mobile phase consisted of methanol-water (containing 0.2% formic acid) (95:5) at a flow rate of 0.5 mL · min(-1). The multiple reaction ion monitoring (MRM) with an ESI interface in the negative ion mode was selected. The results showed that the linear ranges of five kinds of ginkgolic acids were in the range of 0.2-36.0 µg · L(-1) (r ≥ 0.999 5). The lowest limit of quantification (LOQ) of ginkgo acid C13: 0, C15:1, C17:2, C15:0 and C17:1 were 0.18, 0.18, 0.21, 0.10 and 0.20 µg · L(-1), respectively. The average recovery was between 73.28% and 87.56%, and the average content of total ginkgolic acids in three batches of samples was in the range of 0.023-0.028 µg · g(-1), which was much lower than 2 µg · g(-1) prescribed in drug registration standards. This method is simple and rapid with high sensitivity, which can be used for the determination of five kinds of trace ginkgolic acids in diterpene ginkgolides meglumine injection materials.
Chromatography, Liquid ; methods ; Ginkgolides ; analysis ; Injections ; Limit of Detection ; Salicylates ; analysis ; Tandem Mass Spectrometry ; methods

Dabigatran ; Drug Eruptions ; Humans

Limit test of flavones in diterpene ginkgolides meglumine injection materials by UV-Vis and HPLC-DAD method was studied in this essay. The HPLC-DAD method has lower LOD (about 1% of the UV-Vis), that is, the sensitivity is higher than UV-Vis method. Through the analysis of the kinds of flavonoids ingredients in the samples by LC-MS, the three compounds with highest contents are kaempferol, quercetin and isorhamnetin. Kaempferol, quercetin and isorhamnetin were chosen as reference compounds for HPLC analysis, and the HPLC separation analysis was carried on an Agilent Eclipse plus C18 column (4.6 mm x 250 mm, 5 μm) with methanol and water containing 0.4% phosphoric acid (50: 50) as mobile phase, and the flow rate was 1.0 mL x min(-1). The detection wavelength was set at 360 nm. This method has good specificity, precision and reproducibility. The LODs of quercetin, kaempferide and isorhamnetin were 27.6, 22.3, 29.5 μg x L(-1). The average recovery was 87.9% (RSD 3.3%), 91.7% (RSD 3.1%), 88.3 (RSD 1.3%) for quercetin, kaempferide and isorhamnetin, respectively. Based on the 10 batches of sample results and sensitivity of different HPLC, the content of total flavonoids ingredients of diterpene ginkgolides meglumine injection materials was limited no more than 2 x 10(-5). This method is simple, quick and has good maneuverability, and could be used to the limit test of flavonoids in the diterpene ginkgolides meglumine injection materials.
Chromatography, High Pressure Liquid ; methods ; Diterpenes ; analysis ; Drugs, Chinese Herbal ; analysis ; Flavones ; analysis ; Ginkgolides ; analysis ; Limit of Detection ; Mass Spectrometry ; methods

AIM: To observe the efficacy of ω-3 polyunsaturated fatty acids in patients with age-related macular degeneration(ARMD)after receiving a poor response to the combination of ranibizumab and photodynamic therapy(PDT).

METHODS: Ninety-two cases(122 eyes)of patients with age-related macular degeneration in our hospital from February 2015 to January 2017 were selected as the subjects. All patients were given intravitreal ranibizumab injection combined with photodynamic therapy, according to the received light sensitive dose were randomly divided into half dose group(45 eyes of 60 cases)and full dose group(47 eyes of 62 cases), half dose group received half dose verteporfin(3mg/m²), the full dose group received full dose verteporfin(6mg/m²). The patients were followed up for 1mo, 3mo after treatment. After 3mo treatment, 41 eyes of 30 patients paitents who got choroidal neovascularization(CNV)leakage again or leakage increased were randomly divided into control group of 14 cases(20 eyes), experimental group of 16 cases(21 eyes). All patients were treated with ranibizumab combined with half dose verteporfin(3mg/m²), photodynamic therapy. The experimental group were added with ω-3 polyunsaturated fatty acids soft capsule(twice per day, 1 tablets per time, period of 6mo). All patients were followed up at 1, 3 and 6mo after treatment.best corrected visual acuity(BCVA), central macular retinal thick(CRT), intraocular pressure, total effective rate of CNV, the average number of injections of ranibizumab and adverse reactions were observed during the follwed up.

RESULTS: The BCVA, CRT, intraocular pressure before and after 1,3mo treatment and the total efficiency of CNV of half dose group were no statistical differences with the full dose group(P>0.05). The number of times ranibizumab injection of half dose group(1.1±0.8, 1.6±1.2)were lower than that in the full dose group(1.6±1.1, 2.5±1.7)at 1 and 3mo after treatment, the differences were statistically significant(P<0.05). The BCVA and CNV in experimental group was higher, CRT and ranibizumab injection times were lower than that in the control group at 1,3 and 6mo after treatment, the differences were statistically significant(P<0.05). No serious adverse reactions related treatment were occurred in all patients.

CONCLUSION: It is safe and effective to treat patients with age-related macular degeneration by ranibizumab combined with half dose photodynamic therapy. The combination of ω-3 polyunsaturated fatty acids can improve the therapeutic effect.

An analysis method has been established to test 27 elements (Li, Be, B, Mg, Al, Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, As, Sr, Mo, Cd, Sn, Sb, Ba, La, Hg, Pb, Bi) in Maca nationality's medicine with microwave digestion-ICP-MS. Sample solutions were analyzed by ICP-MS after microwave digestion, and the contents of elements were calculated according to their calibration curves, and internal standard method was adopted to reduce matrix effect and other interference effects. The experimental results showed that the linear relations of all the elements were very good; the correlation coefficient (r) was 0.9994-1.0000 (Hg was 0.9982) ; the limits of detection were 0.003-2.662 microg x L(-1); the relative standard deviations for all elements of reproducibility were lower than 5% (except the individual elements); the recovery rate were 78.5%-123.7% with RSD lower than 5% ( except the individual elements). The analytical results of standard material showed acceptable agreement with the certified values. This method was applicable to determinate the contents of multi-elements in Maca which had a high sensitivity, good specificity and good repeatability, and provide basis for the quality control of Maca.
Lepidium ; chemistry ; Mass Spectrometry ; methods ; Microwaves ; Reproducibility of Results ; Trace Elements ; chemistry ; isolation & purification

This study is to establish an UPLC fingerprint of Resina Draconis from different manufacturers, which can provide a comprehensive evaluation for its quality control. The analysis was performed on a Phenomenex Kinetex 2.6 μ C18 100A column by agradientelution program with acetonitrile-water as mobile phase at a flow rate of 1.7 mL x min(-1). The column temperature was 40 degrees C and the detection wavelengthwas 280 nm. The fingerprints of 18 batches of Draconis Resina were further evaluated by chemometrics methods including similarity analysis (SA), hierarchical clustering analysis (HCA) and principal component analysis (PCA). As a result, there were 15 common peaks, 13 of which had been identified by LC-Q-TOF MS, and the similarity degrees of 15 batches of the samples was more than 0.9, and the samples were divided into 4 clusters by their quality difference. The method is reproducible, simple and reliablethat it can be used for quality control and evaluation of Resina Draconis from different manufacturers.
Chromatography, High Pressure Liquid ; methods ; Dracaena ; chemistry ; Drugs, Chinese Herbal ; analysis ; Principal Component Analysis ; Quality Control

The effects of application of in-process quality control in Guizhi Fuling capsule production were evaluated by 192 batches data analysis. Using a statistical analysis method, each batch of data were to be counted to research for the difference between 96 samples adopting the technologies of in-process control or not. According to quality standards of Guizhi Fuling capsule, all measurements of the 192 batches of the drugs before and after the application of process control technology were analyzed, and they were within the rules. There was a significant difference between adopting the technologies of process control or not. Application of in-process control technology can improve the uniformity of lot-to-lot for Guizhi Fuling capsule.
Capsules ; chemistry ; Chemistry, Pharmaceutical ; Chromatography, High Pressure Liquid ; Drugs, Chinese Herbal ; chemistry ; Quality Control