Objective The objective of this study was to determine the effect of curative chemotherapy regimen on breast cancer cells and its mechanism.Methods A tumor-bearing mouse model was established and routine dose of capecitabine was given as a conventional chemotherapy group.Continuous low-dose capecitabine chemotherapy was used as a radiotherapy group and no chemotherapy was used as a control group.The expression of microvessel density(MVD),vascular endothelial growth factor(VEGF)and thrombospondin 1(TSP-1)were measured by flow cytometry.The percentage of myeloid-derived suppressor cells(MDSCs),NK cells and macrophages in the program was observed.The tumor size and blood leukocyte count were measured after chemotherapy.Results MVD and VEGF in the radiotherapy group were significantly decreased and TSP-1 was significantly increased in comparison with the conventional chemotherapy group(P<0.05).The proportion of MDSCs in the radiotherapy group was significantly decreased,the proportion of NK cells and macrophages were significantly increased when compared to the conventional chemotherapy group(P<0.05).The tumor volume was no difference between the control and chemotherapy groups(P>0.05).However,the white blood cell count in the radiotherapy group was significantly higher than that in the conventional chemotherapy group(P<0.05).Conclusion Capecitabine chemotherapy at continuous low-dose inhibits neovascularization and adjusts the proportion of immune cells to suppress tumor formation.Thus,this chemotherapy could reduce side effects caused by chemotherapy and improve the quality of life.

Enterovirus A, Human ; Hand, Foot and Mouth Disease ; virology ; Humans

Humans ; Oral Medicine ; Photofluorography

DNA, Fungal ; isolation & purification ; Humans ; Mass Screening ; Occupational Diseases ; diagnosis ; microbiology ; Polymerase Chain Reaction ; Skin ; microbiology ; Tinea ; diagnosis ; microbiology

Animals ; Drugs, Chinese Herbal ; pharmacology ; Liver ; pathology ; Liver Cirrhosis ; pathology ; Paeonia ; Rats ; Rats, Sprague-Dawley

BACKGROUND: Observation and comparison about space-occupying lesions due to herniated nucleus pulposus, as well as nerve root compression in lumbosacral disc herniation and manipulative therapy are easily available; however, there is still lack of related quantitative research regarding the internal pressure in herniated nucleus pulposus.OBJECTIVE: To observe the influence of the internal pressure in herniated nucleus pulposus on nerve root compression in patients with lumbosacral disc herniation.DESIGN: Case control study.SETTING: Bone Setting Therapeutic Center, the Air Force General Hospital of Chinese PLA.PARTICIPANTS: Totally 30 patients with lumbosacral disc herniation received operation in the Orthopedic Department of the Air Force General Hospital between October 2002 and December 2003; meanwhile, 15 patients with lumbosacral disc herniation received manipulative therapy in the Bone Setting Therapeutic Center of the same hospital.ing positive group and negative group according to the results of straight leg raising test. The pressure in herniated nucleus pulposus was detected during operation, and the straight leg raising height was also recorded beThe size of intervertebral disk herniated nucleus was presented by the maximum vertical distance from the intervertebral disk herniating apex to the posterior edge of vertebra on CT and/or MRI transverse section.raising height.RESULTS:Totally 30 patients received operative treatment whereas 15The pressure in lumbosacral disc herniated nucleus andthe size of herniated nucleus pulposus: as for patients who received operation, the pressure in herniated nucleus pulposus was obviously higher in positive group than in negative group [(2.119±0.753), (0.483±0.420) kPa, P ＜ 0.01]. However,the size of herniated nucleus pulposus was not significantly different between positive group and negative group [(4.688±1.991), (4.857±2.033) mm,nipulative therapy, their straight leg raising height was obviously increased compared to that before operation [(54.000±16.388)°, (72.668±15.338)°,P ＜ 0.01], but the size of herniated nucleus pulposus was proved not obviously changed by CT or MRI examination after manipulative therapy (P ＞ 0.05).cleus pulposus on nerve root is related to the iuternal pressure of herniated nucleus pulposus; higher internal pressure in herniated nucleus pulposus would limit straight leg raising height while lower internal pressure has less effect. However, the compression of herniated nucleus pulposus on nerve root has no obvious relationship with the size of herniated nucleus compression by reducing the internal pressure in herniated nucleus pulposus, which may not only depend on changing the space-occupying of herniated nucleus pulposus.

Adult ; Cerebrospinal Fluid Rhinorrhea ; Female ; Humans ; Sphenoid Sinus ; pathology

?AIM:To investigate the correlation between dry eye and different degrees of diabetic retinopathy ( DR ) in type 2 diabetic patients.?METHODS: In the cross-sectional study, 340 patients (340 eyes) with type 2 diabetes were enrolled. Tear film function tests including tear meniscus height, tear film breakup time ( BUT ) , fluorescein staining, Schirmer Ⅰtest were performed followed by surveying questionnaires about dry eye. Retinal status was evaluated by retinal color photography and indirect ophthalmoscopy exam with dilated pupils to evaluate DR and whether companied by macular edema.?RESULTS:The prevalence of dry eye was 49. 41%. The mean duration of diabetes in patients with dry eye was 11.15±7.07a, while 6.92±5.45a without dry eye(P<0.01). Dry eye had the positive correlation to the development of DR. The incidence of dry eye in people with mild nonproliferative diabetic retinopathy ( NPDR ) , moderate NPDR, severe NPDR and proliferative diabetic retinopathy (PDR) was 1. 097 times, 1. 724 times, 2. 86 times and 5. 43 times respectively, compared with people without DR. The occurrence of dry eye in people with macular edema increased by 3. 697 times compared with people without macular edema.?CONCLUSION: Dry eye was more prevalent in people with type 2 diabetes. The incidence of dry eye increased gradually with the occurrence and development of diabetic retinopathy.

Alzheimer's disease (AD) is the most common cause of cognitive impairment in older people. With the aging of society is more and more serious, AD caused great burden to patients and society. A β is a classical biomarker of AD, which has been widely used in clinical diagnosis of AD patients. Compared with positron emission tomography (PET) and single photon emission computed tomography (SPECT), near infrared fluorescence imaging has many advantages including highly sensitive, non-invasive, safety and inexpensive. Therefore, many research groups have focused on developing the molecular probes of near-infrared fluorescence (NIRF) imaging. In this article, we will review the progress of the probes of NIRF.
Alzheimer Disease ; diagnosis ; Amyloid beta-Peptides ; analysis ; Fluorescence ; Fluorescent Dyes ; Humans ; Molecular Probes ; Positron-Emission Tomography ; Spectroscopy, Near-Infrared ; Tomography, Emission-Computed, Single-Photon

Aged ; Antigens, CD ; metabolism ; Antigens, Differentiation, Myelomonocytic ; metabolism ; Carcinoma, Signet Ring Cell ; metabolism ; pathology ; surgery ; Diagnosis, Differential ; Gastrectomy ; methods ; Histiocytic Sarcoma ; metabolism ; pathology ; surgery ; Humans ; Lymphatic Metastasis ; Male ; Phosphoglucomutase ; metabolism ; Stomach Neoplasms ; metabolism ; pathology ; surgery