Adenoma, Villous ; metabolism ; pathology ; surgery ; Diagnosis, Differential ; Humans ; Immunohistochemistry ; Kidney Neoplasms ; metabolism ; pathology ; surgery ; Lymphoma ; metabolism ; pathology ; surgery ; Male ; Middle Aged ; Myosins ; metabolism ; Neoplasms, Multiple Primary ; metabolism ; pathology ; surgery ; Rhabdomyosarcoma, Alveolar ; metabolism ; pathology ; surgery ; Ureteral Neoplasms ; metabolism ; pathology ; surgery ; Vimentin ; metabolism

Objective To study the pathogenesis of pathogens of sexually transmitted disease (STD) in acute pelvic inflammatory disease (PID) Methods Neisseria gonorrhoeae, chlamydia trchomatis, ureaplasma urealyticum were cutured respectively in 130 patients with acute PID Results The pathogens of STD had been found in 55 patients The detective rate of Neisseria gonorrhoeae was 6 9% (9/130), about half of them were mixed infection; the detective rate of chlamydia trachomatis was 4 6% (6/130), all of them were mixed infection; the positive percentage of ureaplasma urealyticum was 37 7% (49/130), one third of them were mixed infection Conclusion The pathogens of STD might cause acute PID or only play a synergetic role in it

Objective To explore the diagnosis and management of functional pancreatic endocrine tumor.Methods Clinical data of 19 cases of functional pancreatic endocrine tumor were retrospectively analyzed.Results 15 cases of insulinoma,2 cases of gastrinoma and 2 cases of glucagonoma were qualitatively diagnosed.The positive rate of preoperative diagosis for type B ultrasonic inspection,CT,MRI,EUS,selective portovenous sampling and intraoperative type B ultrasonic inspection was 15.8％ (3/19),67.5％ (10/16),71.4％ (5/7),87.5％ (7/8),100％(2/2) and 85.7％(6/7) respectively.Of the total 19 cases,7 cases underwent open surgery,11 cases unde rwent laparoscopic surgery,and one case didn't undergo any surgery as liver metastasis had occurred when glucagonoma was diagnosed.The operation methods included tumor enucleation (n=13),distal pancreatic resection (n=3),distal pancreatic resection plus splenectomy (n=1),and pancreatic head resection with duodenum preserved (n=1).Conclusions The measurement of serum insulin,gastrin and glucagon is the main basis for qualitative diagonosis of pancreatic endocrine tumor.Two stage spinal CT thin scanning is the main method for tumor location.Intraoperative type B ultrasonic inspection is the supplement to preoperative location.Tumor enucleation is the main choice of treatment.

Background Pulmonary fibrosis currently lacks screening and diagnostic methods in the early stages and effective treatments in the later stages, so there is an urgent need to explore the mechanisms and develop targeted treatments. Objective To screen the expression of differentially expressed circular RNA (circRNA) hsa_circUCK2 under pathological conditions and to explore its effect on pulmonary fibrosis. Methods In the cell-based experiments, hsa_circUCK2 was knocked down in HPF-a cells using small interfering RNA (siRNA), and HPF-a cells were stimulated by TGF-β1. Four groups were set up: si-NC group, si-circUCK2 group, si-NC+TGF-β1-treated group, and si-circUCK2+TGF-β1-treated group. Western blot assay was used to detect the expression of fibronectin (FN1) in HPF-a cells of the four groups, scratch assay was used to detect the migration ability of HPF-a cells, and CCK-8 assay was used to detect the proliferation ability of HPF-a cells in the two groups with TGF-β1 stimulation, the si-NC+TGF-β1-treated group and the si-circUCK2+TGF-β1-treated group. In the animal experiments, forty-eighty healthy SPF-grade male C57BL/6 mice were randomly divided into four groups: saline+si-con group, saline+si-circ_0000115 group, SiO₂+si-con group, and SiO₂+si-circ_0000115 group. Mouse lung circRNA mmu_circ_0000115 (mouse homolog of hsa_circUCK2) was knocked down by tracheal drip injection of siRNA, and a mouse lung fibrosis model was constructed by tracheal drip injection of SiO₂ suspension (0.2 g·kg⁻¹, 50 mg·mL⁻¹) after 48 h. Real-time fluorescence quantitative PCR was used to detect the knockout efficiency in each organ of the mouse, Western blot was applied to detect the expression of type I collagen α2 (COL1A2) in the lung tissues, and Sirius red was used to detect collagen synthesis in the lung tissues. Results In the cell-based experiments, after the knockdown of hsa_circUCK2, the Western blot results showed that the expression level of the FN1 protein in TGF-β1-stimulated HPF-a cells was significantly down-regulated (P <0.05); the CCK-8 assay and cell scratch assay showed that the down-regulation of hsa_circUCK2 gene significantly inhibited the proliferation and migration of HPF-a cells (P<0.01). In the animal experiments, the real-time fluorescence quantitative PCR results showed that among the detected organs, mmu_circ_0000115 was significantly knocked down only in the lung tissues (P<0.0001); the Western blot results showed that knocking down mmu_circ_0000115 significantly reduced the COL1A2 protein expression level when compared with the SiO₂+si-con group (P<0.0001); the Sirius red results showed that knocking down mmu_circ_0000115 significantly reduced collagen production and deposition in lung tissues of mice in the model group. Conclusion Knockdown of hsa_circUCK2 inhibits fibroblast activation and reduces collagen deposition in lung fibrosis model mice. It is suggested that the hsa_circUCK2 is involved in the process of pulmonary fibrosis and may be a potential therapeutic target for pulmonary fibrosis.

To study the chemical constituents of Veratrum dahuricum (Turcz.) Loes. f., a new aurone glycoside named as (Z)-7, 4'-dimethoxy-6-hydroxyl-aurone-4-O-β-glucopyranoside was isolated from the 95% ethanol extracts of the rhizomes and roots of Veratrum dahuricum (Turcz.) Loes. f. by repeated column chromatography on silica gel and recrystallization. Its structure was established by extensive spectroscopic analyses, and its cytotoxicities against HepG-2, MCF7 and A549 cell lines were measured in vitro.
Benzofurans ; isolation & purification ; Cell Line, Tumor ; Glycosides ; isolation & purification ; Humans ; Plant Roots ; chemistry ; Plants, Medicinal ; chemistry ; Rhizome ; chemistry ; Veratrum ; chemistry

OBJECTIVETo discuss whether asiaticosides could effectively reduce the endothelial cell damage as a biochemical modulator, so as to further inhibit the post-stenting intima-media membrane hyperplasia.

METHODHuman aortic smooth muscle cells and aortic fibroblasts were selected and divided into the blank group, the rapamycin group and the asiaticoside group and the rapamycin and asiaticoside group. The expressions of muscle cells and fibroblasts TGF-beta1, Smad7 and I-collagen gene were determined by RT-PCR. The expression quantity of I-collagen protein was assayed by ELISA. The coefficient of drug interaction (CDI) between rapamycin and asiaticoside was calculated. Additionally, 16 Chinese mini-swines were randomly divided into group A and group B. One sirolimus drug-eluting stent of the same type was implanted after the high-pressure pre-expansion of anterior descending artery balloon. After the operation, the group A was intravenously injected with normal saline 30 mL x d(-1). Whereas the group B was intravenously injected with asiaticoside 30 mg x kg(-1) x d(-1)(diluted to 30 mL). The expressions of plasma vWF of the two groups were measured at the 7th and 14th days after the operation. At the 28th day after the operation, tissues of the stented vessel segments were sliced and stained to calculate the vessel area, inner stent area, lumen area and neointima area

RESULTCompared with the control group, the combination group showed significant up-regulation in smooth muscle cells and fibroblast Smad7 gene, down-regulation in TGF-beta, and obvious inhibition of I-collagen gene expression (P < 0.01). As for smooth muscle cells, there was no difference in the expression of I-collagen between the combination group and the rapamycin group, with CDI at 0. 83. As for fibroblasts, there was a significant difference in the expression of I-collagen between the combination group and the rapamycin group (P < 0.05), with CDI at 0.77. Plasma vWF of the group B was significantly lower than that of the group A (P < 0.05) at the 7th and 14th days after the operation. At the 28th day after the operation, no difference was observed in vessel area and stent area between the two groups. However, the lumen area in the group B was significantly larger than that of the group A(P < 0.05), and the neointima area of the group B was significantly smaller than that of the group A (P < 0.05).

CONCLUSIONAs an effective biochemical modulator for rapamycin, asiaticosides could inhibit TGF-beta expression, significantly decrease the synthesis and secretion of extracellular matrix, further inhibit the post-stenting intima-media membrane hyperplasia and reduce the endothelial cell damage by effectively up-regulate the expression of Smad7 protein.

Animals ; Collagen ; genetics ; metabolism ; Coronary Restenosis ; drug therapy ; prevention & control ; surgery ; Drugs, Chinese Herbal ; administration & dosage ; Humans ; Hyperplasia ; drug therapy ; genetics ; metabolism ; prevention & control ; Smad7 Protein ; genetics ; metabolism ; Stents ; adverse effects ; Swine ; Transforming Growth Factor beta1 ; genetics ; metabolism ; Triterpenes ; administration & dosage

Objective To investigate the clinical features and characteristics of coronary artery lesion between Hui and Han nationality young pa?tient with acute myocardial infarction(AMI)who were referred to the affiliated hospital of Ningxia Medical University. Methods A total of 189 con?secutive AMI young patients(age≤44 years)who underwent coronary angiography were retrospectively retrieved from the database.Those patients with AMI were divided into Hui group(46 cases)and Han group(143 cases). The clinical features and results of coronary angiogram were com?pared between the two group. Results Compared with Han group,Hui group are more younger than Han group,high prevalence rate of diabetes, lower smoking history and lower drinking history(P<0.05). Coronary angiography showed the incidence of three?vessel lesions was significant low?er in Han group than in Hui group(P<0.05). Both group showed single vessel was the most common lesion. Conclusion Hui nationality patients with acute myocardial infraction are more younger and are are more prone to suffering from diabetes history、lower smoking history and lower drinking history than Han nationality patients. The coronary artery lesions of Hui nationality patients with acute acute myocardial infraction are more three?branch lesions than Han nationality patients.

Objective To explore the method and effect of primary closure of choledochostomy with placement of a modified biliary stent after common bile duct exploration. Methods Open or laparoscopic common bile duct exploration was done in 39 patients with both gallbladder and common bile duct (CBD) stones. After extraction of stones, an 8F J-stent (pigtailed) was placed in the CBD and into the duodenum over a guide wire. The proximal end of the stent was secured to the CBD wall with rapidly absorbable suture. The CBD incision was primarily closed. Results The stent dislodged and was discharged with stool at the 13th (10-18) postoperative day . Three patients developed transient hyperamylasemia in the immediate postoperative period. None of the patients had complications of bile leak, stent occlusion, early stent dislodgement, or stent retraction into the CBD. Conclusions Placement of a self-release biliary J-stent in CBD and into the duodenum during common bile duct exploration is easier to manipulate with the help of choledochoscpe and guide wire. It is safe and cost-effective, therefore, it can expand the indications for primary closure of CBD incision, and reduce the complications related to T-tubes.

BACKGROUND: The latest research shows that the rotator cuff patch can reduce tendon-bone tension, provide the point of attachment for growth factor and cell growth, and promote biological reconstruction of the rotator cuff, but what kind of material as the rotator cuff patch is the most effectively and safety is unclear. OBJECTIVE: To investigate the effect of autologous periosteum patch on the tendon-bone healing in rotator cuff repair.METHODS: Forty-eight New Zealand white rabbits were selected to make acute unilateral rotator cuff injury models and then randomly divided into two groups: control group treated with simple suture repair and experimental group treated with autologous periosteum patch on the basis of suture repair. At 4, 8, 12 weeks after repair, proximal humerus specimens were taken, and the histological observation and biomechanical testing were recorded.RESULTS AND CONCLUSION: (1) Histological observation: At 4 weeks after repair, the experimental group showed a large amount of interconnected collagen fibers and infiltrated inflammatory cells and a small amount of cartilage cells, and mesenchymal stem cells proliferated remarkably. At 8 weeks after repair, the experimental group showed a large amount of cartilage cells. At 12 weeks, in the experimental group, the tendon bone interface was similar to normal with regular arrangement of cartilage cells. In the control group, loose connective tissues were seen at 4 weeks; a large amount of fibroblasts appeared at the ending point, a small amount of collagen fibers were connected and a small amount of chondrocytes were formed at 8 weeks after repair; collagen fibers were connected and chondrocytes were disordered at 12 weeks after repair. (2) Biomechanical test: The maximum load of the two groups increased gradually with time, and the maximum load of the experimental group was higher than that of the control group at different time points (P < 0.05). To conclude, the autologous periosteum patch can effectively promote the tendon-bone healing in rotator cuff repair.

BACKGROUND: The latest research shows that the rotator cuff patch can reduce tendon-bone tension, provide the point of attachment for growth factor and cell growth, and promote biological reconstruction of the rotator cuff, but what kind of material as the rotator cuff patch is the most effectively and safety is unclear. OBJECTIVE: To investigate the effect of autologous periosteum patch on the tendon-bone healing in rotator cuff repair.METHODS: Forty-eight New Zealand white rabbits were selected to make acute unilateral rotator cuff injury models and then randomly divided into two groups: control group treated with simple suture repair and experimental group treated with autologous periosteum patch on the basis of suture repair. At 4, 8, 12 weeks after repair, proximal humerus specimens were taken, and the histological observation and biomechanical testing were recorded.RESULTS AND CONCLUSION: (1) Histological observation: At 4 weeks after repair, the experimental group showed a large amount of interconnected collagen fibers and infiltrated inflammatory cells and a small amount of cartilage cells, and mesenchymal stem cells proliferated remarkably. At 8 weeks after repair, the experimental group showed a large amount of cartilage cells. At 12 weeks, in the experimental group, the tendon bone interface was similar to normal with regular arrangement of cartilage cells. In the control group, loose connective tissues were seen at 4 weeks; a large amount of fibroblasts appeared at the ending point, a small amount of collagen fibers were connected and a small amount of chondrocytes were formed at 8 weeks after repair; collagen fibers were connected and chondrocytes were disordered at 12 weeks after repair. (2) Biomechanical test: The maximum load of the two groups increased gradually with time, and the maximum load of the experimental group was higher than that of the control group at different time points (P < 0.05). To conclude, the autologous periosteum patch can effectively promote the tendon-bone healing in rotator cuff repair.