Hematopoietic Stem Cell Transplantation ; Humans ; Societies, Medical ; United States

The aim of this study was to prepare chitosan film and to study its hemostatic properties. Chitosan film was prepared by casting the mixed solution of dialysed chitosan and gelatin after crosslinking with glutaraldehyde in a freeze dryer. Bleeding times were measured for bilateral back incisions (5 incisions on each side) in 4 New Zealand white rabbits. Using a randomized, blinded experimental design, one incision in each animal was treated with chitosan film, the other was treated with gauze. After bleeding stopped ,hemoglobin amount in films or gauzes was measured to determine the hemostatic effect. The results showed that the chitosan film adhered well to incisions. Bleeding times and hemoglobin amounts in chitosan film group were superior to those in gauze group( P

Human mammaglobin (hMAM) is a recently discovered breast tissue specific protein with a high sensitivity and specificity. The expression of hMAM in breast cancer and its relationship with breast cancer indicate that hMAM is a novel breast specific marker that can induce cytotoxic actions from immune system and therefore may have great potentials in breast cancer treatment.

Objective To explore the levels of neuron-specific enolase(NSE)in serum and cerebrospinal fluid(CSF) of children with convulsion,and its significance to the diagnosis of neuronal damage was evaluated.Methods Sixty patients were enrolled,and they were divided into 4 groups:non-nervous system disease group,peripheral nervous system disease group,brief convulsion group,and prolonged/status convulsion group.The levels of NSE in serum and CSF were detected in 4 groups,and the electroencephalography(EEG) and computed tomography/magnetic resonance imaging(CT/MRI) examinations were taken to observe the changes in patients with convulsion.Results The levels of NSE in serum and CSF of children with convulsion increased significant,especially in the prolonged/status convulsion group.Changes of NSE levels in serum and CSF were similar.Meanwhile,significant changes were found in EEG between the brief convulsion group and prolonged/status convulsion group;but no significantly changes were found in CT/MRI between the 2 groups.Conclusions NSE detection might be valuable to the diagnosis for neuronal damage in early time.The changes of NSE levels are similar to those in EEG,which are more sensitive than the changes in CT/MRI.It is very important to combine the NSE detection in serum or CSF and EEG examination in early time after convulsion for judgement to the neuronal damage and prognosis.

·AIM: To study the effect of an intravitreal injection of angiostatin on vascular leakage in the retina and iris of oxygen-induced retinopathy of prematurity (ROP).·METHODS: Brown Norway rats at postnatal day 7 (P7) were exposed to hyperoxia (750mL/L O2 )for 5 days (P7-12) and then returned to normoxia to induce retinopathy. Angiostatin was reconstituted in sterile Phosphate Buffered Saline(PBS) and diluted to desired different concentrations. Angiostatin solution was injected into the vitreous of the right eye of the ROP rats at P14 and the age-matched normal rats through pars plana using a glass capillary, and the left eye received the same volume of sterile PBS as the control. Vascular permeability was quantified at 1, 2 and 3 days after the injection by measuring albumin leakage from blood vessels into the retina and iris using the Evans blue method and normalized by total protein concentrations. The expression of vascular endothelial growth factor (VEGF) in retina was evaluated using the Western Blot analysis and immuno-histochemistry 24 hours following the injection.·RESULTS: ROP rats showed significant increases of vascular permeability in the retina and iris (P<0.01). Angio-statin reduces vascular permeability in a dose-dependent manner in the retina of ROP rats. The reduction showed a time course trend. [Angiostatin injection reduced retinal vascular permeability by approximately 1.5 and 2-fold at P15 (P<0.05) and P16 (P<0.01), respectively.] Angiostatin injection significantly reduced VEGF levels in the retina of ROP rats but did not affect retinal VEGF levels in normal rats.·CONCLUSION: Angiostatin significantly decreases pa-thological vascular permeability in the retina and iris of ROP rats but not in normal rats. Angiostatin down-regulates VEGF expression in retina of ROP rats. These results suggest that angiostatin may have a therapeutic potential in the treatment of ROP and other diseases with vascular leakage.

The development of large-scale hospital depends on its comprehensive strength,and the scientific research is especially important of it.However.the potential of the scientific research is dependent on the discipline construction and personnel training.Selecting the outstanding person at home and abroad is the most important aspect of the scientific research field.Therefore,the system for cultivating and selecting talents must be established and perfected.

OBJECTIVETo investigate the influence of histological prostatitis (HP) on the clinical features of benign prostatic hyperplasia (BPH) and prostate cancer (PCa) and its clinical significance.

METHODSWe retrospectively studied the data of 273 cases of BPH and 240 cases of PCa, including age, prostate volume, total prostatic special antigen (tPSA), prostatic special antigen density (PSAD), maximum urinary flow rate (MFR) and acute urinary retention (AUR).

RESULTSTotally, 186 cases of BPH (68.13%) and 45 cases of PCa (18.75%) were complicated by HP, with statistically significant difference between the two groups (P < 0.05). Compared with the patients with BPH only, those complicated by HP showed significantly elevated tPSA, PSAD and total prostate volume (all P < 0.05), decreased MFR (P < 0.05) and increased risk of AUR (P < 0.05). There was no significant difference in the patients' age between the two groups (P > 0.05). The levels of tPSA and PSAD were remarkably higher in the PCa patients complicated by HP than in those with PCa only (all P < 0.05), but no significant differences were found in the other indexes between the two groups (P > 0.05).

CONCLUSIONHP may play a certain role in the progenesis and progression of HP and PCa, but HP is associated more closely with BPH.

Aged ; Disease Progression ; Humans ; Male ; Organ Size ; Prostate ; pathology ; Prostate-Specific Antigen ; blood ; Prostatic Hyperplasia ; etiology ; Prostatic Neoplasms ; complications ; Prostatitis ; complications ; Retrospective Studies ; Urinary Retention ; etiology

Objective To guide the fluid resuscitation in patients with severe sepsis and septic shock by monitoring the central venous oxygen saturation(ScvO2),and to improve the rescue success rate and prognosis of patients with sepsis.Methods Based on the standard of ScvO2 of 6h,45 patients with severe sepsis and septic shock were divided into two groups:observation group(n=28) and control group(n=17).The ScvO2,mean arterial pressure(MAP) and central venous pressure(CVP) levels were measured in the two groups after fluid resuscitation,and then the mortality,MAP compliance rate and CVP compliance rate were compared between the two groups.Results Compared with mortality in the control group(52.94%),the mortality in the observation group(14.29%) was significantly lower,the difference was significant (x2=5.927,P=0.015),but after 6h's fluid resuscitation,the MAP and CVP standard number in the two groups did not exist significant difference(x2=1.182,P>0.05).Conclusion ScvO2 with or without reaching the standard level(more than 65%) was positively correlated with the severity of the disease after fluid resuscitation in patients with severe sepsis and septic shock.Therefore,the monitoring of ScvO2 plays an important role in guiding the treatment of fluid resuscitation and judging the prognosis.

Hepatoid adenocarcinoma of the stomach ( HAS) belongs to one of the rare cases in gastric cancer types ,which has extremely high malignant degree and poor prognosis .Lymph node metastasis and liver me-tastasis are common in HAS.In this article,we reported alpha-fetoprotein-high-producing hepatoid adenocar-cinoma of the stomach(HAS),and reviewed the related literature at home and abroad in order to improve clinical physicians understanding of these diseases and treatment experience .

Objective Based on the model of exercise induced central fatigue,we attempt to testify that the whole power output in time-counted sporting events was regulated by the central nervous system(CNS).Methods Eighteen national level rowers participated in the experiment.Each participant completed two successive 6 minutes maximal rowing exercise with an interval of 15 minutes.The power output(PO),heart rate(HR),blood lactate(BL),RPE and EMG were measured.Results It was demonstrated that the pacing strategies adopted by the rowers in the 2 successive 6-minute rowing tests were remarkably similar,and the rowers'PO and iEMG activities in the two tests were highly correlated,especially in the last minute of exercise.Conclusion It is concluded that the hypothesis of pacing strategy is controlled by CNS.