Objective:To obtain the optimal conditions for separating catalpol from leaves of Rehmannia by selecting appropriate macroporous adsorption resins.Methods:The detection indication was the content of catalpol, which was determined by HPLC method. Twelve different kinds of macroporous adsorption resins were studied on the static capacity of adsorption and desorption, and H103 resin was selected for the research of separation and purification.Results:The H103 resin had a good capacity for adsorption and desorption.The best process of purifying catalpol by H103 resin was 1mg/ml concentration, the adsorption rate of 1-2 BV/h,the flow rate of 1-3 BV/h, and 8 BV with 10% alcohol.Conclusion:The method is simple and available, which can simplify the production process and lower costs.

OBJECTIVETo investigate the change of free Ca(2+) in cytoplasma in the neurotoxicity of the manganese (Mn).

METHODSThe cortical neurons were separated from the neonatal Wistar rats and cultured in vitro. The neurons were grouped as the Mn-treated groups and the untreated group. The neurons in the Mn-added groups were incubated in the culture media containing lower, medium and high dosage manganese chloride (MnCl(2 x 4) H2O) with the concentration at 0.2, 0.6, 1.0 mmol/L respectively. Meanwhile, neurons in control were cultured in the normal culture media. All treatments stopped 24 h later. Neurons were labeled Ca(2+) sensitive prober, Fluo-3/AM. The fluorescence intensity of Fluo-3 combined with Ca(2+) was examined by LSCM (Laser scanning confocal microscope) and was treated by the picture analysis technique. The intensity was equal to the free Ca(2+) concentrations in cytoplasma of neurons.

RESULTSMnCl(2) can induce free Ca(2+) overloaded in cytoplasma of neurons, but the increasing degree varied in MnCl(2) dosage. Cytoplasma Ca(2+) concentration in the moderate dosage The moderate dosage MnCl(2) group and the high dosage MnCl(2) group were significantly higher than that in the lower dosage MnCl(2) group and the control group (P < 0.05).

CONCLUSIONThe Ca(2+) overload is involved in the neurotoxicity of manganese, and a dosage response relationship is found between the manganese chloride dose and Ca(2+) overload in cortical neurons.

Animals ; Animals, Newborn ; Calcium ; metabolism ; Cells, Cultured ; Cerebral Cortex ; drug effects ; metabolism ; Dose-Response Relationship, Drug ; Manganese ; toxicity ; Neurons ; drug effects ; metabolism ; Rats ; Rats, Wistar

OBJECTIVETo investigate the effect of Inonotus obliquus polysaccharides on testicular injury induced by exposure to high power microwave (HPM) in rats.

METHODSA total of 30 male Wistar rats were randomly divided into 5 groups, i.e., the normal control group, the microwave radiation model group, the treatment group, the new microwave radiation model group, and the prevention group, 6 in each group. All rats, except those in the normal control group, were exposed to microwave at an average power density of 200 mW/cm2 for 6 min. Rats in the control group and the model group were administered with normal saline by gastrogavage, once a day. Rats in the treatment group and the prevention group were given with Inonotus obliquus polysaccharides by gastrogavage, 2 mL each time (400 mg/kg body weight), once a day. All rats were sacrificed on the 11th day.The sperm density and the rate of sperm deformity were determined. Pathological changes of testis were observed by light microscope and transmission electron microscope.

RESULTSShort-term HPM irradiation could significantly reduce the sperm density and increase the sperm deformity rate (P < 0.05). Meanwhile, obvious pathological changes of testes occurred. Compared with the two model groups, the sperm density increased and the sperm deformity rate decreased in the treatment group and the prevention group (P < 0.05). Under the light microscope, injuries of spermatogenic cells and stromal cells, as well as vascular dilatation and congestion were obviously alleviated in the treatment group and the prevention group. Mitochondrial swelling and endoplasmic reticulum expansion shown by ultrastructural observation were also significantly alleviated. Of them, injuries of spermatogenic cells and inflammation response were milder in the treatment group than in the prevention group.

CONCLUSIONSInonotus obliquus polysaccharides had significant protective effect on microwave radiation induced testicular injury. Better effect was obtained by therapeutic medication than preventive medication.

Animals ; Basidiomycota ; chemistry ; Male ; Microwaves ; adverse effects ; Polysaccharides ; pharmacology ; Radiation Injuries, Experimental ; prevention & control ; Radiation-Protective Agents ; pharmacology ; Rats ; Rats, Wistar ; Testis ; drug effects ; pathology ; radiation effects

Objective To evaluate the efficacy and safety of tislelizumab combined with chemotherapy in the treatment of urothelial carcinoma in the real word. Methods We enrolled 32 patients with urothelial carcinoma who were treated with tislelizumab and chemotherapy (gemcitabine/cisplatin or paclitaxel). The incidence of treatment-related adverse reactions during treatment and the efficacy evaluation were statistically analyzed. Results All patients were divided into two groups: 15 patients in the tislelizumab combined with paclitaxel group and 17 patients in the tislelizumab combined with GC group. Among 24 efficacy-evaluable patients, the ORR was 54.2% and the DCR was 83.3%. The ORR were 50.0% and 58.3%, and the DCR were 75.0% and 91.7% in the tislelizumab combined with paclitaxel group and the tislelizumab combined with GC group respectively. Common treatment-related adverse reactions included anemia (56.3%), loss of appetite (53.1%) and skin pruritus (50.0%). The grade 3-4 treatment-related adverse events occurred in 21.8% of patients. Common immune-related adverse reactions included skin toxicity (53.1%) and immune colitis (9.4%). Conclusion Tislelizumab combined with chemotherapy on urothelial cancer has significant curative effect, safety and controllability, but attention should be paid to immune-related adverse reactions.

Taking " harmony of body and spirit" as the theoretical core in Huangdi Neijing and the functional nature and executive structure of the five emotions system as clues, this paper explores and analyzes the relevant theories of the five emotions system in ancient Chinese medicine literature. It is found that the five emotions system is a highly ordered and integrated collection of five functional states. It often resides in the five zang viscera, it operates between the meridians and the xuanfu through the elevation and movement of the qi, and it is the pivotal point for the operation of the qi and blood of the organism, the interactive conduction of information, and the unity of form, emotion, and qi. Therefore, this paper starts from the point of view of system science. It is proposed that the primordial spirit exercises control over the five emotions and the five emotions provide nutrition to the primordial spirit, and that the two are not " islands of information" but have a dynamic and hierarchical internal connection. The executive structure of the five emotions system, namely, the meridians, the xuanfu, and the five zang viscera, is the pivot, and it is recognized that the operation of the five emotions system is a process with self-organizing characteristics and orderly and eternal motion. We think of the qi, blood, ying, and essence as the basis of occurrence, the meridian as the execution channel, and the xuanfu as the place for the spiritual mechanism to enter and exit; the five zang viscera serve as a dwelling place, and ministerial fire serves as the source of energy. This paper serves as reference for future research related to the executive structure of the five emotions system of traditional Chinese medicine.

OBJECTIVETo investigate the clinical effects of close reduction and percutaneous minimally invasive fixation in the treatment of proximal humerus fractures.

METHODSFrom April 2008 to March 2010, 28 patients with proximal humerus fracture were treated with close reduction and percutaneous minimally invasive fixation. There were 21 males and 7 females, ranging in age from 22 to 78 years,with an average of 42.6 years. The mean time from suffering injuries to the operation was 1.7 d. Nineteen cases caused by falling down, 9 cases by traffic accident. The main clinical manifestation was swelling, pain and limited mobility of shoulders. According to Neer classification, two part fractures were in 17 cases and three part fractures in 11 cases. The locking proximal humerus plate was used to minimally fixation through deltoid muscle under acromion. The operating time,volume of blood loss, the length of incision and Constant-Murley assessment were applied to evaluate the therapeutic effects.

RESULTSThe mean operating time was 40 min, the mean blood loss was 110 ml, and the mean length of incision was about 5.6 cm. The postoperative X-ray showed excellent reduction and the plate and screws were successfully place. Twenty-eight patients were followed up for 6 to 24 months (averaged 14.2 months). The healing time ranged from 6 to 8 weeks and all incision was primarily healed. There were no cases with necrosis head humerus, 24 cases without omalgia, and 4 cases with o-malgia occasionally. All the patients can complete the daily life. The mean score of Constant-Murley assessment was 91.0 +/- 5.8, 24 cases got an excellent result, 3 good and 1 fair.

CONCLUSIONClose reduction and percutaneous minimally invasive fixation, not only can reduce surgical invasive, but also guarantee the early function activities. It has the advantages of less invasive, fixed well and less damage of blood circulation.

Adult ; Aged ; Female ; Fracture Healing ; Humans ; Male ; Middle Aged ; Minimally Invasive Surgical Procedures ; methods ; Shoulder Fractures ; physiopathology ; surgery

OBJECTIVETo investigate the change of indicators of oxidative stress in serum and NF-kappaB in peripheral blood mononuclear cells of patients with silicosis, and explore the mechanism of the development of silicosis.

METHODSThe subjects were divided into (1) 200 workers exposed to SiO2 for at least 1 years in a foundry served as the dust-exposure group; (2) 130 cases with silicosis (I phase silicosis 64 cases, II phase 46 cases III phase 20 cases) served as the silicosis group; (3) 32 cases with 0+ phase silicosis in the foundry served as the observed group,(4)100 subjects from a hotel served as the control group. The serum including superoxide dismutase (SOD), nitric oxide (NO), serum glutathione peroxidase (GSH-Px), total antioxidant capacity (T-AOC), nitric oxide synthase (NOS), lipid malondialdehyde (MDA) and NF-kappaB protein levels in peripheral blood mononuclear cells were determined, respectively.

RESULTSCompared with the control group, NO levels in dust-exposed group and silicosis group significantly increased, and SOD decreased significantly (P < 0.05 or P < 0.01). Compared with the control group and dust-exposed group, T-AOC, NOS, MDA levels in silicosis group significantly increased (P < 0.05 or P < 0.01). GSH-Px in dust-exposed group and silicosis group were (231.164 +/- 36.484) and (270.469 +/- 39.228)U/ml, respectively which were significantly than that [(223.360 +/- 46.838) U/ml] in control group (P < 0.05 or P < 0.01), and there was significant difference of GSHPx between the silicosis group and the dust-exposed group significantly (P < 0.01) . GSH-Px level [(290.750 +/- 39.129) U/ml] in III phase silicosis group were significantly higher than those [(256.906 +/- 21.41) and (259.594 +/- 34.79) U/ml] in observation group and I phase silicosis group (P < 0.05). NF-kappaB levels [(72.06 +/- 9.12) and (85.25 +/- 11.64) ng/L] in dust-exposed group and silicosis group were significantly higher than that [(59.71 +/- 9.27) ng/L] in control group (P < 0.01), and there was significant difference of between the silicosis group and the dust-exposed group (P < 0.01). There was a positive correlation between serum GSH-Px level and the silicosis stages (r = 0.507, P < 0.01). Also there was a positive correlation between NF-kappaB level and silicosis stages, age, GSH-Px or NO levels (r = 0.376, 0.243, 0.233, 0.221, P < 0.01).

CONCLUSIONThe imbalance of oxidative and anti-oxidation system and the activation of NF-kappaB are related with the occurrence and development of silicosis. The monitoring of oxidative stress indicators and NF-kappaB is beneficial to the prediction and prognosis assessment of silicosis.

Adult ; Aged ; Case-Control Studies ; Glutathione Peroxidase ; metabolism ; Humans ; Leukocytes, Mononuclear ; metabolism ; Malondialdehyde ; metabolism ; Middle Aged ; NF-kappa B ; metabolism ; Nitric Oxide ; metabolism ; Oxidative Stress ; Silicosis ; blood ; Superoxide Dismutase ; metabolism ; Young Adult

OBJECTIVETo study the optimum process of removing cadmium irons from extracts of Gentianae Radix et Rhizoma with gamma-mercaptopropyl-modified silica gel (MPS) and assess its cadmium ion-removing property.

METHODStatic and dynamic adsorptions were adopted to detect the cadmium-removing rate. MPS' cadmium ion-removing property was assessed with such indicators as the cadmium-removing rate, the solid content and the HPLC fingerprint.

RESULTThe process parameters of the static adsorption were as follows: 0.20 g x mL(-1) of concentration of extracts, 120 minutes of adsorption time and 15:1 between raw materials and MPS. The process parameters of the dynamic adsorption were as follows: 1:3.5 times between diameter and height, 0.20 g x mL(-1) of concentration of extracts, 0.9 mL x min(-1) of flow rate of the extracts and 50:1 between raw materials and MPS. Before and after the cadmium ion-removing process, the extracts showed no notable difference in solid content and HPLC fingerprint.

CONCLUSIONgamma-mercaptopropyl-modified silica gel (MPS) can effectively remove cadmium ion from the extracts of Gentianae Radix et Rhizoma with an excellent cadmium ion-removing property.

Adsorption ; Cadmium ; chemistry ; Drug Contamination ; Gentianaceae ; chemistry ; Rhizome ; chemistry ; Silica Gel ; chemistry

OBJECTIVETo investigate the clinical manifestation of patients with renal injury induced by chronic mercury intoxication and the application of the diagnostic criteria of occupational mercury poisoning.

METHODSThe clinical data of 8 patients with chronic occupational mercury intoxication were analysed and evaluated.

RESULTSAll the observed clinical signs of chronic mercury intoxication correspond with the items of the diagnostic criteria of occupational mercury poisoning. The increasing beta2-MG was one of the clinical manifestations of renal injury induced by chronical mercury intoxication. The renal injury obviously was dose-dependent and reversible.

CONCLUSIONSThe national diagnostic criteria of occupational mercury poisoning is practically valuable. The renal injury induced by chronic mercury intoxication should not be neglected.

Adult ; Female ; Humans ; Male ; Mercury Poisoning ; diagnosis ; Middle Aged ; Occupational Diseases ; diagnosis ; Reference Standards

Objective To explore the white matter microstructural change between autism spectrum disorder(ASD) children and the healthy controls and it's correlation with the age and the clinical symptoms.Methods Thirty-three patients with ASD and thirty-three healthy controls (HC) matched for sex-,age-and handedness underwent diffusion tensor imaging (DTI) scans.Use the Autism Diagnostic Observation Schedule(ADOS) and the Neuropsychological Development Inventory for Children Aged 0-6 Years Old (SLAS) to assess the clinical symptoms.Use tract-based spatial statistics (TBSS) based on fiber skeleton to analyze the fractional anisotropy (FA) of the whole brain DTI then to identify the differentiated brain regions.And analyze the correlation with age and clinical symptoms.Results (1) FA value of the body of corpus callosum (BCC) (x =-10,y =11,z =26;P=0.0012),left posterior limb of internal capsule (LPLI) (x =-23,y =-11,z =12;P＜0.01),left anterior corona radiata (LACR) (x =-28,y =28,z =16;P＜ 0.01),lift superior corona radiata(LSCR) (x=-27,y=-1,z=21;P=0.0017) was significantly lower in ASD group.(2) There was a positive correlation between the FA value of LPLI and the LACR,LSCR with age among the ASD group(r=0.436,P=0.012;r=0.443,P=0.010;r=0.475,P=0.005).There was a negative correlation between the FA value of the BCC,LPLI and the LACR,LSCR with the age among the HC children.(3) There was a correlation between the LPLI with the score of A DOS (communication:r=0.406,P=0.025;communication+social behavior:r=0.377,P=0.039;restrictive interests and repetitive behaviors:r=0.375,P=0.041) and SLAS (gross motor:r=-0.409,P=0.024),There was a correlation between the LSCR with the score of the SLAS (gross motor:r=-0.539,P=0.002,adaptive capacity:r=-0.373,P=0.041,mental age:r=-0.388,P=0.034).Conclusion The brain white matter microstructure change of BCC,LPLI,LACR,LSCR may be the pathophysiological basis of ASD.The development trend of brain white matter structure varied with age in ASD children is different from that of normal children.Brain white matter microstructure of the LPLI,LSCR is correlation with ASD symptoms.