Objective: To study the morphologic differences and nutritional components of the natural and broken Masson pine pollen. Methods: Pure pollen was collected from Masson pine (Pinus Massoniana Lamb) and the dry pollen was broken by high speed low temperature air flow technique. Their morphologic changes were observed under scan electronic microscopy. The nutritional components of pollen were analyzed.Results: The pollen particle consists of two air bags and one main part, like a mushroom cap. The main morphologic change of broken pollen was that the air bags were separated from pollen particles, and the main part of pollen particles became enriched. The physical characteristics of pollen were changed in container and its fluidity was lost. The broken pollen had very strong adhesiveness. So it could not fly like natural pollen. In broken pollen, the rough fiber, cellulose and semi cellulose contents decreased significantly. Total energy, total lipid, and starch contents increased remarkably. The water soluble and fat soluble components also increased greatly. The total amino acids content of broken pollen was higher than natural pollen except Cys, Arg and Met, and free amino acids were also higher except Cys, Gly and Met. In broken pollen, the amount of lipids extracted by ether increased sharply, nearly 7 times more than natural pollen.Conclusion: It is considered that some nutritional components of natural pollen can be released after broken. Because most of the lipids in pollen are easily oxidized, broken pollen can not be stored for long time.

The implantation of the foldable multifocal intraocular lens,a new pseudophakia intraocular substitute,needs only a small incision and the post-operative complications are rare.The incoming light can be refracted into several fo-cuses.Improved visual acuities both for far and near distance are obtained,which downregulated the glasses-wearing rate.This article summarizes the theories and designs,implantation,clinical application,theropeutic outcomes,and complications of this type of multifocal intraocular lens.

Dental Implantation ; Dental Scaling ; Diabetes Mellitus, Type 2 ; complications ; Guided Tissue Regeneration, Periodontal ; Humans ; Male ; Middle Aged ; Periodontitis ; diagnostic imaging ; etiology ; therapy ; Radiography, Panoramic

Acupuncture Points ; Acupuncture Therapy ; Adolescent ; Adult ; Aged ; Chest Pain ; therapy ; Exercise Therapy ; Female ; Humans ; Male ; Middle Aged ; Young Adult

Humans ; Oral Surgical Procedures ; education ; methods ; Surgery, Oral ; education ; manpower ; trends

The volatile oil is the main component in the leaves of Perilla frutescens. According to the main types of monoterpenoids or aromatic compounds, it can be divided into different chemotypes and the main chemotypes of Chinese producing Perilla are PA type (mainly containing Perilla aldehyde and limonene), PK type (mainly containing perillaketone) and PP type (subdivided as PP-a type, with apiole as its main component; PP-m type, with myristicin as its main component; PP-e type, with elemicin as main component; PP-as type, with asarone as main component). Based on the biosynthetic pathways analysis, we also found that the formation of the particular chemotype is usually controlled by a single gene or a few genes, and different types have different pharmacological effects. In this paper, the classification under the species P. frutescens, main chemotypes of the volatile oil, and their biogenesis and regulation, pharmacological effect and influence factors are summarized and reviewed.
Animals ; Humans ; Oils, Volatile ; analysis ; pharmacology ; toxicity ; Perilla frutescens ; chemistry ; classification ; metabolism ; Plant Leaves ; chemistry

Female ; Humans ; Hyperkeratosis, Epidermolytic ; pathology ; Infant, Newborn

Aim To quantitatively analyze the lymphocyte proliferation using the time-series data of carboxyfluorescein diacetate succinimidyl ester(CFSE).Methods The model of immune suppression in mice was created by cyclophosphamide and CFSE dye was used for staining the lymphocyte of both control group and treatment group animals. The data were analyzed through mathematical model-fitting.Results The first generation of cell proliferation of the control group and treatment group were 27.17 h and 22.88 h; cell death rates in each division were respectively 20% and 40%; the half-life of cells before the proliferation was respectively 31.53 h and 43.32 h.Conclusions The mathematical fitting of CFSE data can quantitatively analyze the mechanism of the drugs attecting the proliferation of lymphocyte.In this experiment the mechanism of cyclophosphamide inhibiting lymphocyte proliferation may be due to the increase of cell death rate of each division caused by cyclophosphamide.

0 05) Conclusion The results suggested that pregnancy immunological tolerance can be induced efficiently and the ELR can be decreased significantly by oral administration of proper dosage antigens of OVA and TMA2

Objective To evaluate the effects of three-dimensional conformal radiotherapy(3D-CRT) on the patients with esophageal carcinoma.Methods From October 2001 to October 2004,68 patients with esophageal carcinoma,the diagnosis of whom was finally confirmed by pathological examination,received coplanarity or noncoplanarity multifield 3D-CRT with Varian 1800C liner accelerator,using three-dimensional conformal radiotherapy planning system.Conventional fractionated dose was 2Gy per fraction,5 fractions per week,with a total dose of 60-70Gy in 6-7 weeks.Clinical target volume(CTV) and planning target volume(PTV) were enlarged outwards on the basis of gross tumor volume(GTV) which included primary tumors and regional lymph nodes.Results One-year and 3-year local tumor control rates were 80.9% and 47.1%,respectively,as the result of 3D-CRT.One-year and 3-year survival rates were 76.4% and 44.1% respectively.Grade 2 acute esophagitis occurred in 20 cases and grade 3 in 2 cases,grade 1 radiation pneumonia was found in 8 cases and grade 1 esophageal stenosis in 4 cases.Conclusions With tolerable reactions and after effects,the technique of 3D-CRT could effectively elevate the local tumor control rate and survival rate for the patients with esophageal carcinoma.