The article reports the ultrastructural changes of 5 cases of 4 months human embryo heart ceils: uncultured, after trypsinization and after 1,2,3,4,5 days in culture.1. Uncultured 4 month's human embryo heart cell contained a nucleus, located in the center of cytoplasm. A lot of glycogen and ribosome were seen in the cytoplasm. Myofibrils located in the periphery of cytoplasm, and Z line can be seen. A few mitochondria developed rather poorly. Intercalated discs can be seen, which is composed of desmosome, gap junction and fascia adherens.2. The harmful effect of trypsin on heart cells is controversial.3. The ultrastructure of human embryo heart cells in 1,2,3 day old culture showed an appearance like uncultured cardiac cells. Dedifferentiation was not seen.4. Some of human embryo heart cells in 4 and 5 day old culture showed sarcomere imperfection, thick Z line, swollen mitochondriae and cell degradation.5. According to our observation abundant glycogen and ribosome in cardiac cell is not only a characteristic of cultured heart cell, but also a characteristic of embryonic cell.

Objective To explore the basic method and clinical application of spatio-temporal image correlation (STIC) in the routine scanning of normal fetal heart. Methods Totally 120 volume datasets of normal fetal heart were acquired with 2D and STIC, respectively. The difference in time between the two methods were compared and the basic imaging method was explored and analyzed.Results Satisfactory gray-scale volume acquisitions were accomplished in all 120 cases. The quality of the images derived from volume datasets were comparable to that directly obtained from 2D echocardiography. No significant difference of visualization rate was found between the two methods (P>0.05). Some views that could not be showed with 2D were acquired with STIC. In fetal heart screening, STIC (n=104) and routine ultrasonography (n=85) took (4.47±2.32) min and (5.26±2.01) min per case, respectively.Conclusion STIC provides more views and information than 2D, simplifies the picture-gathering process, decreases the dependence of examiner, increases the efficiency, and decreases the exposure upon fetal heart obviously.

Objective To evaluate the efifcacy and safety of endoscopic submucosal dissection in treatment of prolapse of gastric mucosa.Methods to meet the typical gastric mucosal prolapse of gastric mucosa under endoscopy, the ultrasonic gastroscopy confirmed that the lesion was in the mucosal layer, and the disease was excluded. After PPI continuous treatment for 3 months, no signiifcant improvement in symptoms, in patients with informed consent under the premise of endoscopic mucosal stripping. After 3 months of the operation return visit section for outpatients re-examination of gastroscopy.Results 10 cases of complications of endoscopic submucosal dissection of gastric mucosa prolapse patients had no hemorrhage, perforation after operation, postoperative patients were followed up for 3 months, the symptoms were improved obviously, no antral mucosal prolapse was observed under endoscope.Conclusion Endoscopic submucosal dissection is effective and safe in treatment of gastric mucosal prolapse.

Objective Activin A, a member of the transforming growth factor (TGF ?) superfamily, has been reported to overexpress in liver cirrhosis. The aim of this study was to examine the expression changes of activin A in the process of carbon tetrachloride induced rat hepatic fibrosis. Methods Hepatic fibrosis was induced in rats by subcutaneous injections of 40% carbon tetrachloride oily solution for a period of 1 to 7 weeks. 6～10 rats were killed at week 1,2,3,4,5,6 and 7 weeks. The kinetics of activin A messenger RNA expression and its protein localization were assayed by semi quantity reverse transcription polymerase chain reaction (RT PCR) and immunohistochemistry. Results RT PCR and immunohistochemistry showed normal rat liver could express activin A mRNA and protein, and its expression was transiently decreased and became undectable after carbon tetrachloride injections for 2 or 3 weeks, then increased grandually. After carbon tetrachloride injecting for 6 and 7 weeks, activin A mRNA and protein expression were significantly enhanced in rats liver ( P

Objective To evaluate the effects of pingangmycin and dexamethasonum injected synchronously in the treatment of hemangioma in maxillofacial regions. Methods A total of 83 patients with hemangioma in maxillofacial regions between September 1996 and March 2004 were reviewed. The age of the patients was from 3 months to 50 years old. The sizes of the lesions varied from 1cm?1cm to 6cm?9cm. Injection should be accorded to size of the tumor, local appearance and patients' age. Injection might be repeated in every 5~10 days, totally 4~6 times. Results All cases were followed up from 8 to 36 months. The recovery rate was 95.18%, and the total effective rate was 100%. Conclusion This method is a simple, safe and effective therapy of hemangioma in maxillofacial regions.

Tetrandrine (Tet) is a bibenzylisoquinoline alkaloid isolated from Stephania tetrandra S Morr. Lots of studies demonstrated that Tet could: ① act as a calcium antagonist via blocking plasma membrane voltage- or receptor-operating calcium channels, inhibiting extracellular calcium entry and intracellular calcium mobilization, so it could prevent hepatocytes, cardiomyocytes, pancreas cells and neurocytes from toxic or ischemia-reperfusion injuries. However, in HL-60 and leukamia T cells, Tet promoted calcium releasing from mitochondria or/and microsomes and induced these cells death. ② down-regulate T cell protein kinase C signal transduction pathway, inhibit T cell proliferation, interleukin-2 secretion and expression of the T cell activation antigen. It could also interrupted integrity of macrophages, reduced neutrophiles and macrophages respiratory-bursting and proinflammatory cytokines secretion through minimizing nuclear transcription factor kappa B DNA binding activity. ③ induce tumor cells apoptosis. ④ down-regulate P glucoprotein activity and reverse tumor cells multidrug resistance. ⑤ also inhibit platelet-derived growth factor induced hepaticstellate cells and human lung fibroblast proliferation, down-regulete type Ⅰ and type Ⅲ collagen secretion. In this article, we also reviewed the therapeutic effects of Tet on hepatic fibrosis, pulmonary fibrosis, portal hypertension, pulmonary hypertension, anti-inflammation and anti-tumors.

Objective To study the effect of laparoscopic neoplasty and changes of procalcitonin (PCT) and cell-mediated immunity in elderly patients with duodenal ulcer perforation. Methods Forty-four elderly patients with duodenal ulcer perforation were divided into laparoscopic neoplasty group (n=20) and open neoplasty group (n=24).The level of PCT was assayed by colloid immunization. Blood levels of CD3+, CD4+, CD8+and natural killer (NK) cells were detected by flow cytometry before operation and at 0.5 h, 24 h, 48 h and the 7th day after operation.Surgical complications and postoperative hospital stay were observed in two groups. Results There was no significant difference in the activity of PCT before operation between two groups. There were no significant differences in CD3+, CD4+, CD8+ and NK cells 0.5 h before operation between two groups. The level of PCT was significantly lower at 24 h and 48 h after operation in laparoscopic group than that in open operation group (P<0.05). There were significant differences in the serum levels of CD3+, CD4+, CD8+and NK cells with time changes in two groups (P<0.05). There were significant decreases in CD3+, CD4+and CD8+at 24 h after operation than those before operation in two groups, which were significantly lower in open operation group than those of laparoscopic group except for CD8+. The levels of CD3+, CD4+and CD8+recovered to the levels before operation at 48 h after operation in laparoscopic group. In open operation group CD3+did not return to the level before operation at 7 d after operation. The levels of NK cells were decreased at 24 h after operation in two groups, but there was no significant difference in the level of NK cells between two groups. The level of NK cells returned to preoperative levels at 48 h after operation in laparoscopic group, while there was no significant difference in the level of NK cells before and after operation in open neoplasty group. Compared with the open neoplasty group, there were fewer complications and shorter hospital stay in laparoscopic group. Conclusion The laparoscopic repair operation for gastric and duodenal ulcer perforation has a fewer effects on the stress response and immune function in elderly patients, and has the advantages in the protection of immune function.

OBJECTIVE:To observe the efficacy of Methyl Carboprost-NEGPF administered per rectum at different time in preventing postpartum hemorrhage in patients with vaginal delivery.METHODS:A total of 300 parturients undergoing vagi-nal delivery with possible postpartum hemorrhage were enrolled:Methyl Carboprost-NEGPF 1 granule(1mg) per rectum (with a suitable inserting depth of 6 cm) were administered in Group A(n=100) when their uterine orifices were fully open and Group B(n=100) after fetal delivery,while Group C(n=100) were injected i.m with oxytocin 10IU after fetal delivery. The three groups were compared in respect of third stage labor duration,postpartum blood loss amount at 2h and 24h and case numbers with postpartum hemorrhage.RESULTS:As compared with Group A and Group B,Group C was significantly different in the duration of third stage of labor and postpartum blood loss amount at 2h and 24h(P

Objective To explore the clinical character,diagnosis and treatment principals of pyeloureteritis glandularis and cystitis glandularis.Methods The clinical manifestation,character of imageology and endoscopy images of the case for one year follow-up were analyzed and the relevant literatures were reviewed.Results During one year follow-up,there was no clinical symptoms and any progress on imageology.The patient is still in close following-up.Conclusions According to literatures,cystitis glandularis is not common in clinical,and it should be paid more attention by clinicians.There were a few reports about the ureteritis glandularis.Pelvis,ureter and bladder have the same epithelial tissue,pyelitis glandularis is very rare,up to now there is no efficient treatment ways.

OBJECTIVE To analyze the status of concomitant or combined infection in patients presented with hepatitis B for investigation of the nosocomial infection control. METHODS We determined the serum virus marker of hepatitis A,C,D,E and G from 786 cases infected with hepatitis B virus. RESULTS Double and multiple infections accompanied by hepatitis B were found to be 16.67%(131/786) and 1.78%(14/786),respectively,especially with hepatitis C which amounted to 45.52%(66/145) of those with concomitant infections(double or multiple). CONCLUSIONS It is commonness that the patient of hepatitis B to preexist other kinds of hepatitis virus infections.We determine other hepatitis markers in patients of hepatitis B to be probative for nosocomial infection.