Acupuncture Therapy ; Acute Disease ; Cerebral Hemorrhage ; drug therapy ; Drugs, Chinese Herbal ; therapeutic use ; Humans ; Medicine, Chinese Traditional ; Phytotherapy

Objective: To establish an HPLC method for simultaneous determination of syringin, schizandrin, deoxyschizandrin and schisandrin B in Shuangwu capsules. Methods: The HPLC method was employed using a Diamonsil C18 column (200 mm X 4.6 mm, 5μm) with a mobile phase of methanol-acetonitrile (1 : 1, A) and water (B). The gradient elution program was as follows, 0-5 min, 35%-60%A; 5-10 min, 60%-70%A; 10-50 min, 70%-90%A; 50-90 min, 90%A. The flow rate was 1 ml/min. The detection wavelength was set at 220 nm and the temperature was at 35°C. Results: The linearity was obtained within the range of 1.28-20.40 μg/ml for syringin (r=0.999 7), 6.30-100.80μg/ml for schisantherin (r=0.999 6), 1.20-19.20μg/ml for deoxyschizandrin (r=0.999 8), and 3.75-60. 00 μg/ml for schisandrin B (r=0. 999 6). The RSD values of precision were less than 1% for all the four components. The results showed that the samples were stable in the room temperature for at least 24 h. The average recovery rates of syringin, schizandrin, deoxyschizandrin and schisandrin B were 99.47%, 102.50%, 99.21% and 101.86%, respectively. Conclusion: Our method is rapid, easy to perform and accurate; it can be used to control the quality of Shuangwu capsules.

·Electroretinogram (ERG) is an objective examination in evaluating retinal function, which is also suitable to evaluate retinal function of multiple ophthalmic diseases. ln recent years, studies have found that ERG can find functional changes prior to morphological changes of fundus examination in early diabetics, which provides a new way for researches of pathological mechanism, early diagnosis and prognosis evaluation for diabetic retinopathy, and then also provides a new therapy for diabetic retinopathy. ln this paper, using ERG in the diagnosis of early diabetic retinopathy was reviewed.

OBJECTIVETo explore the features of various mediastinal lymphadenopathies using computed tomography perfusion (CTP).

METHODSCTP parameters (CTPs) of the selected mediastinal nodes from 59 patients with pathology-proven malignant lymph nodes and of those from 29 patients with clinically diagnosed or pathology-proven inflammatory lymphadenopathies were collected. Patients were divided into subgroups by etiology and phase of primary disease, including different pathological malignant nodes and diverse inflammatory nodes. CTPs were defined as blood flow (BF), blood volume (BV), mean transit time (MTT), permeability (PMB), and time to peak (TTP). Differences of CTPs were compared between malignant and benign nodes, and among subgroups, respectively.

RESULTSIn the mediastinum, no significant differences of CTPs were found between malignant and benign groups (all P>0.05), the same for subgroups of malignant nodes (all P>0.05). Acute lymphadenitis had higher BF and BV than chronic inflammatory, lymphoid tuberculosis, sarcoidosis and malignant nodes. The BF of malignant nodes was markedly slower than that of acute lymphadenitis (P=0.01), but faster than chronic inflammatory nodes (P=0.04) and sarcoidosis (P=0.03), with no significant difference compared with lymphoid tuberculosis. Pneumonia-complicated lymphoid tuberculosis showed the longest MTT while sarcoidosis displayed the shortest MTT, and inflammatory nodes, lymphoid tuberculosis without complicated pneumonia and malignant nodes had moderate MTT.

CONCLUSIONCTPs show promising potential in distinguishing various lymphadenopathies in the mediastinum, but more studies are needed to improve their specificity.

Adult ; Female ; Humans ; Lymph Nodes ; diagnostic imaging ; Lymphatic Diseases ; diagnostic imaging ; Male ; Mediastinal Diseases ; diagnostic imaging ; Perfusion ; Retrospective Studies ; Tomography, X-Ray Computed ; methods

Asthma was considered to be a kind of chronic airway inflammatory diseases mediated by eosinophils(EOS),mast cells,T lymphocytes for a long time,and the typical pathologic features of asthma was airway EOS inflammation.The current study had found out that elevated neutrophils in airway were seen in severe asthma,and this kind of asthma had a poor response to corticosteroids.Impaired neutrophil chemotaxis and apoptosis of airway neutrophilia may be associated with persistent neutrophilic inflammation in the airways of severe asthma.A deep research into the mechanisms of neutrophilic phenotypes asthma would contribute to the new strategy of therapy.This article discusses a range of topics related to the role of neutrophilic inflammation in severe asthma in children,which were organizedas follows.

Obesity has been a world-wide growing health problem in children and adolescents,insulin resistance plays a pivotal role in the pathogenesis of obesity-associated complications,the mechanism is still unknown.There is growing evidence that obesity is associated with low-grade inflammation in youth.The onset of low-grade inflammation in obesity may be associated with the inflammatory cytokine secreted by adipose tissue,local Monocyte/Macrophage system and role of oxidative stress.The study of inflammatory cytokines in pathogenesis of obesity and insulin resistance will help to develop new treatment strategies to prevent obesity and obesity-associated complications.

The fresh conidia powder of Beauveria bassiana SGBB8702 produced with diphasic technology was dried using 36-h procedures of vacuum-freeze drying (VFD) or vacuum drying (VD). The VFD and VD procedures reduced water content of the fresh conidia powder from 58.56% to 3.97% and 4.26%, resulting in preparations containing 1.29, and 1.25?10 11 conidia/g. The VFD or VD conidia had the same viability (≥98%) as the fresh ones but germinated slightly more slowly than the fresh ones. The estimates of LC 50 s for the fresh, VFD, and VD conidia against Myzus persicae on day 7 after inoculation were 1.15, 5.89, and 2.95?10 4 conidia/ml, respectively. At the concentration of 10 6 conidia/ml, the LT 50 of the fresh conidia against M. persicae was estimated as 3.6 d, corresponding to 3.9 d and 4.4 d for the VFD and VD conidia, respectively. Due to much lower cost, the VD procedure was of greater potential for drying B. bassiana conidia in mass production though the VFD procedures resulted in slightly better quality of conidia powder. The viability and virulence of the VFD conidia were assessed periodically during 12-mon storage at 4℃ and 20℃, respectively. No viable conidia stored at 20℃ were detected 255 d after storage whereas those stored at 4℃ had a viability of 90.15% and an LT 50 of 4.7 d at the end of 12-mon storage. The results showed that storage of B. bassiana conidia powder at ambient temperature was unable to maintain shelf life at commercially acceptable level even though its water content was reduced to

With the development of immunoassay and sensing technologies and the solid waste compost technologies being paid more and more attention,the method of immunosensor can’t be interfered by some interference factors of the commonly used analytical methods,it is of great significance to apply the immunosensor technologies in monitoring,and real-time,online measurement during compost process. The working mechanism and classification of immunosensor are briefly introduced,and the components of the complex compost system are divided into solid phase,liquid phase and gas phase. The development and application of immunosensor in compost is introduced. The latest progress in immunosensor for determination of trace toxicants is reviewed. The application of immunosensor in environmental monitoring and its future development are also discussed.