Toxic effects of L7 lyophilized powder of extracellular active components (L7-LPEAC), extracted from the Algae-lysing bacteria L7, on Chlorella pyrenoidosa were studied according to the changes of effective photosynthesis rate (EPR), the protein content, the chlorophyll a content and the MDA content of algae. The results showed that the growth of alga was promoted at low concentrations of L7-LPEAC (0.80 g/L, 1.25 g/L). The 96 h-EC50 and 120 h-EC50 upon Chlorella pyrenoidosa are 5.75 g/L and 2.55 g/L, respec tively. The chlorophyll a content increased firstly and then decreased at high concentrations of L7-LPEAC (≥2 g/L), so did the protein content. Compared with the control group, there is a significant statistics diff erence (P

Objective To detect the gene expression of Pax6 in retinoblastoma (Rb).Design Experimental study.Participants Six cases of fresh Rb tumors and two established Rb cell lines.Six cases of retina tissues as normal control group.Methods Pax6 gene ex- pression was assessed in two established Rb cell lines,six primary tumors and six cases of retina tissues using the reverse transcriptase polymerase chain reaction (RT-PCR) and Western blot.Main Outcome Measures Expression of Pax6 gene in fresh retinoblastoma tis- sue and cell lines.Results The mRNA of Pax6 gene was positive in all two established Rb cell lines and the six primary Rb tumors using RT-PCR.The protein of Pax6 gene was also positive in Western blot.Pax6 mRNA and protein expression in the Rb tumors were increased compared with normal control group (P

Acute Disease ; Adolescent ; Coronary Angiography ; Coronary Sinus ; abnormalities ; diagnostic imaging ; Coronary Vessel Anomalies ; complications ; diagnostic imaging ; Electrocardiography ; Female ; Humans ; Myocardial Infarction ; diagnostic imaging ; etiology ; Tomography, X-Ray Computed

Resistin, a newly discovered peptide hormone mainly secreted by adipose tissues, is present at high levels in serum of obese mice and may be a potential link between obesity and insulin resistance in rodents. However, some studies of rat and mouse models have associated insulin resistance and obesity with decreased resistin expression. In humans, no relationship between resistin level and insulin resistance or adiposity was observed. This suggests that additional studies are necessary to determine the specific role of resistin in the regulation of energy metabolism and adipogenesis. In the present study, we investigated the effect of resistin in vivo on glucose and lipid metabolism by over-expressing resistin in mice by intramuscular injection of a recombinant eukaryotic expression vector pcDNA3.1-Retn encoding porcine resistin gene. After injection, serum resistin and serum glucose (GLU) levels were significantly increased in the pcDNA3.1-Retn-treated mice; there was an obvious difference in total cholesterol (TC) level between the experiment and the control groups on Day 30. In pcDNA3.1-Retn-treated mice, both free fatty acid (FFA) and high density lipoprotein (HDL) cholesterol levels were markedly lower than those of control, whereas HDL cholesterol and triglyceride (TG) levels did not differ between the two groups. Furthermore, lipase activity was expressly lower on Day 20. Our data suggest that resistin over-expressed in mice might be responsible for insulin resistance and parameters related to glucose and lipid metabolism were changed accordingly.
Animals ; Blood Glucose ; analysis ; Cholesterol, HDL ; blood ; Cholesterol, LDL ; blood ; Fatty Acids, Nonesterified ; blood ; Glucose ; metabolism ; HeLa Cells ; Humans ; Lipid Metabolism ; Male ; Mice ; Resistin ; blood ; physiology ; Triglycerides ; blood

Objective To evaluate the endoscopic features and treatment of gastrointestinal carciholds. Methods Data of 44 patients diagnosed as gastrointestinal carcinoid from 2002 to 2009, including clinical manifestation, endoscopic findings, treatment and follow-up, were analyzed retrospectively. Results Most common presentations were abdominal pain and changes in bowel habits, while some patients (n = 7 ) did not have any symptoms. Most lesions were elevated submucosal ones with normal mucosal pit pattern of type Ⅰ . Larger lesions appeared as polyps with mucosal pit pattern of type Ⅲ and 1 malignant carcinoid as type Ⅴ. Endoscopic ultrasonography were performed in 29 patients and all lesions were presented as submucosal hypoechoic masses with distinct borders. Endoscopic fulguration with high frequency current was applied in 12 patients and endoscopic mucosal resection (EMR) in 32. One patient with malignant carcinoid accepted multiple EMRs and died from lung and liver metastasis 6 months after last procedure. No recurrence was observed in other 43 patients during the follow-up visit of 3 months to 5 years. Conclusion Gastrointestinal carcinoid is lack of specific symptoms, and the diagnosis is made by endoscopic and pathologic findings.

OBJECTIVETo examine the benefit of restaging recurrent oral squamous cell carcinoma (R-OSCC) and the effect on salvage surgery.

METHODSAn analysis was performed on 30 patients with local only first failure (n = 13) or loca-regional only first failure (n = 9) or first recurrence in the neck (n = 8) after surgery and/or radiation treatment given for oral squamous cell carcinoma. All the 30 patients were restaged and treated with salvage surgery.

RESULTSThe overall survival time and disease-free survival time of patients with early staged R-OSCC was longer than that of patients with advanced staged R-OSCC. The 1-year survival and 1-year disease-free survival rates for early staged R-OSCC is also higher than that of advanced staged R-OSCC.

CONCLUSIONSThe re-stage of the recurrent tumor is significantly correlated with survival. The salvage surgery is an effective measure in patients with recurrent oral squamous cell carcinoma, especially in early staged patients of R-OSCC.

Adult ; Aged ; Carcinoma, Squamous Cell ; mortality ; surgery ; Female ; Follow-Up Studies ; Humans ; Male ; Middle Aged ; Mouth Neoplasms ; mortality ; surgery ; Neoplasm Recurrence, Local ; mortality ; surgery ; Salvage Therapy ; Survival Rate

The purpose of this study is to design push-pull osmotic pump (PPOP) tablets of famotidine using the expert system for the formulation design of osmotic pump of poor water-soluble drug which had been established by the authors. Firstly, the parameters which were requisite of the system input were obtained from literatures and experimental tests. Then the parameters were input into the system, and the program was run. The system displayed the designed formulations sequential. Finally, famotidine PPOP was prepared according to the designed formulations and the in vitro dissolution was carried out. It was found out that the target formulation of famotidine PPOP which could release for 24 hours was obtained in a very short period. Meanwhile, the practicability of the established expert system was proved.
Delayed-Action Preparations ; Drug Delivery Systems ; methods ; Excipients ; chemistry ; Expert Systems ; Famotidine ; administration & dosage ; chemistry ; Osmosis ; Solubility ; Tablets ; Water

OBJECTIVETo investigate the treatment of acute and chronic osteomyelitis with negative pressure wound therapy.

METHODThirty cases of acute and chronic osteomyelitis were treated with negative pressure wound therapy, assisted with debridement, autodermoplasty and myo-cutaneous flap surgery.

RESULTSNo evidence of relapse was found in all cases treated with negative pressure wound therapy. All the patients were followed up, range from 6 to 23 months, the average was 13.6 months.

CONCLUSIONThe negative pressure wound therapy maybe a simple, effective and inexpensive method, and could be one of the favorable therapy in the treatment of acute and chronic osteomyelitis.

Acute Disease ; Adolescent ; Adult ; Aged ; Aged, 80 and over ; Bone Diseases, Infectious ; etiology ; surgery ; Chronic Disease ; Debridement ; methods ; Female ; Follow-Up Studies ; Humans ; Male ; Middle Aged ; Negative-Pressure Wound Therapy ; Osteomyelitis ; surgery ; Surgical Wound Infection ; surgery

The occurrence of foreign body is uncommon in youths and adults. We report here a case of 16-year-old boy who inhaled a foreign body which was overlooked for 6 months. The patient suffered productive cough and received antibiotic treatment for 10 days. But the symptoms did not improve. Chest radiography and CT scan revealed a 1-cm-long needle-like foreign object in the right inferior lobar bronchus. Wedge resection of lung was finally performed because of severe hemorrhage caused by prior bronchoscopy.
Adolescent ; Bronchoscopy ; Foreign Bodies ; diagnostic imaging ; surgery ; Humans ; Lung ; diagnostic imaging ; surgery ; Male ; Radiography

Expressions of GABA and GABA(A)R-alpha1 in the brain of rats poisoned by Tetramine were analyzed to explore the intoxication mechanism. Methods Sixty rats were randomly divided into control, sham poisoned, high-dose poisoned (1.0 mg/kg tetramine) and low-dose poisoned (0.1 mg/kg) groups. The expressions of GABA and GABA(A)R-alpha1 in the brain of the poisoned rats were detected and analyzed by immunohistochemistry and imaging analyzer. Results The expressions of both GABA and GABA(A)R-alpha1 were diffusely seen in the brains of the control and shame poisoned rat groups with a moderate expression level, whereas the expressions of both GABA and GABA(A)R-alpha1 were decreased in the brains of the high-dose poisoned group. In the low-dose poisoned rat group, the expression of GABA initially decreased and reached its lowest level 6 hours after poisoning, and then started to show an increase and reached the level of control groups at day 3. The expressions level reached its peak at days 5-7 after poisoning and remained above the level of control groups till 10 days after poisoning. Similarly, the expression of GABA(A)R-alpha1 in the brains of the low-dose poisoned group initially decreased and reached its lowest level 6-12 hrs after poisoning, and then started to increase and reached the level of control groups at days 7-10 after poisoning, respectively. Conclusion The expression of both GABA and GABA(A)R-alpha1 decreased in the brains of the high-dose poisoned rat group and these changes of GABA and GABA(A)R-alpha1 expressions may be associated with underlying mechanism of tetramine poisoning.
Animals ; Brain/pathology* ; Bridged-Ring Compounds/poisoning* ; Cerebral Cortex/pathology* ; Female ; Hippocampus/pathology* ; Immunohistochemistry ; Male ; Random Allocation ; Rats ; Rats, Sprague-Dawley ; Receptors, GABA-A/metabolism* ; Time Factors ; gamma-Aminobutyric Acid/metabolism*