OBJECTIVE: To observe the effects of Huanglian Jiedu Decoction (HLJDD), a traditional Chinese compound herbal medicine, on p85 mRNA and protein expressions of phosphatidylinositol-3-kinase (PI-3K) in target tissues (skeletal muscular and adipose tissues) in rats with type 2 diabetes mellitus (T2DM) and to investigate the molecular mechanism of HLJDD in treating T2DM. METHODS: The male Wistar rats were injected with streptozotocin (STZ) 30 mg/kg through tail vein, and fed with high-fat and high-caloric diets to induce T2DM. Then the rats were randomly divided into untreated group, aspirin-treated group and HLJDD group, and treated correspondingly. Meanwhile, a group of normal animals without any treatment was set up for normal control group. Ten weeks later, serum fasting blood glucose (FBG), serum fasting insulin (FINS) and oral glucose tolerance test (OGTT) were routinely determined. The expressions of PI-3K p85 mRNA and protein in skeletal muscle and adipose tissue were determined with RT-PCR and Western blotting before and after insulin treatment. RESULTS: Compared with the untreated group, the FBG and OGTT levels in T2DM rats treated with HLJDD decreased significantly (P<0.05). The FINS in HLJDD group was lower than that in the normal control group (P<0.05), but was not significantly different from that in the untreated group. The PI-3K p85 mRNA and protein expressions in HLJDD group obviously increased, as compared with those in the untreated group. CONCLUSION: The effect of HLJDD in treating T2DM was probably associated with its improvement of PI-3K p85 mRNA and protein expressions in skeletal muscle and adipose tissue of the T2DM rats.

Objective To investigate cervical screening procedure in routine physical examinations.MethodsA retrospective study was carried out to assess the procedures and outcomes of cervical cancer screening among women receiving physical examinations in our hospital from October 2008 to September 2009.ResultsA total of 11 542 women underwent gynecological examinations .Of them,13.55% only received TCT,6.60% finished TCT+HPV screening.The positive detection rate of TCT+HPV screening was higher than TCT alone(x2=15.87,P＜0.05).Conclusion Cervical cancer screening rate may be low.

Adolescent ; Female ; Humans ; Patellar Dislocation ; physiopathology ; surgery ; Patellar Ligament ; injuries ; physiopathology ; surgery ; Range of Motion, Articular ; Reconstructive Surgical Procedures

Objective To observe the clinical efficacy and sperm density of Bushen Yijing decoction and tamoxifen,zinc and vitamin E in treating oligospermia with kidney deficiency syndrome .Methods 450 patients with oligospermia were randomly divided into 3 groups.150 patients of the treatment group were treated by Bushen Yijing decoction,tamoxifen,zinc and vitamin E,150 patients of the control group I were treated by Bushen Yijing decoction , zinc and vitamin E,150 patients of the control group II were treated by tamoxifen ,zinc and vitamin E.3 groups were treated for 3 months,pregnancy terminating of treatment and otherwise continued to observe for 3 months after the end of treatment,the sperm density and other sperm parameters (sperm amount,pH,sperm motility,sperm survival rate, sperm normal modality rate ) were evaluated before and after treatment .Results The total effective rates of the treat-ment group,control group I and II were 90.21%,85.11%,72.22%respectively.The total effective rate of the treat-ment group was higher than that of the control group I (χ2 =9.53,P<0.05) and II(χ2 =23.38,P<0.01).The pregnancy rates of the treatment group ,control group I and II were 42.66%,25.53%,20.83%,respectively.The pregnancy rate of treatment group was significantly better than that of the control group I (χ2 =9.26,P<0.01) and II (χ2 =15.78,P<0.01).There were significant differences between before and after treatment on sperm density , sperm motility,sperm survival rate and sperm normal modality rate in the treatment group ( t=-22.22,-18.07,-33.48,-28.46,all P<0.01).Conclusion Bushen Yijing decoction combined with tamoxifen ,zinc and vitamin E can evidently improve the sperm density and other sperm qualities and conception rate of oligospermia with kidney deficiency syndrome .

Objective:To study the anti-proliferation effects of a heat shock protein 90(Hsp90) inhibitor,17-allylamino-17-demethoxygeldanamycin(17-AAG),on a human breast cancer cell line,SKBr3,and related mechanism.Methods:MTT assay was used to detect the growth inhibition of SKBr3 cells.Cell cycle and apoptosis were analyzed by flow cytometry.Alteration of human epidermal growth factor receptor 2(HER2) in SKBr3 cells being treated with 17-AAG were measured by immunohistochemistry.Results:17-AAG significantly inhibited growth of SKBr3 cells in vitro in a dose-dependent manner with an IC_(50) value at 3.09 ?g/ml.Under concentrations of 0,0.625,1.250,2.500,5.000 and 10.000(?g/ml,)the percentages of cell apoptosis were(1.03?0.08)%,(3.68?0.67)%,(7.06?1.12)%,(11.23?1.36)%,(20.32?1.98)%,and(31.65?2.96)%;the percentages of cells at G_(0)/G_(l) phase were 58.61%,54.34%,49.55%,43.73%,35.52%,and 27.46%;the percentages of cells at S phase were 29.57%,25.21%,19.65%,22.98%,19.71%,and 15.46%;the percentages of cells at G_(2) /M phase were 11.82%,20.45%,30.18%,33.29%,44.77%,and 57.08%,respectively.The level of HER2 expression in SKBr3 cells being treated with 17-AAG,compared to that in control cells,was reduced significantly.Conclusion:17-AAG can inhibit the growth of human breast cancer cell and enhance its apoptosis.It may be a promising anti-tumor drug.

Introduction of clinical cases to experiment teaching of pharmacology is an effective method,which combines basic theory with clinical medicine.It can stimulate students' interest in pharmacology,enhance their go-aheadism in study and also improve teaching effects.Moreover,it plays an important role in improving the students qualities such as the reasoning ability,the verbal capacity and the ability to analve and resolve problems,etc..In this article,we explored the teaching method in experiment teaching of pharmacology,and evaluated the effect by questionnaire.

Animals ; Arsenic ; toxicity ; Comet Assay ; DNA Damage ; drug effects ; Lymphocytes ; drug effects ; metabolism ; Male ; Malondialdehyde ; metabolism ; Rats ; Rats, Wistar ; Tobacco Smoke Pollution ; adverse effects

Objective To determine the value of detection of H ras oncogene mutation in urine exfoliated cells as clinical indicator of tumor presence, recurrence and stage.Methods Point mutation at codon 12 of H ras gene was assayed by polymerase chain reaction followed by analysis of single strand conformation polymorphism in urine exfoliated cells from 48 patients with transitional cell carcinoma before operation and 28 patients with non urothelial cancer or normal individuals. The mutation was further confirmed by dideoxy mediated chain termination method of DNA sequencing. Cytology analysis was carried out simultaneously. Bladder tumor specimens were obtained from 48 patients during operation, and histologically elevated for tumor content and grading.Results 48%(23 of 48) of the patients were detected by their aberrant band in SSCP. All aberrant bands displayed a mutant H ras sequence, where 15% (7 of 48) of the patients displayed, apositive cytological analysis. Analysis of abnormalities with tumor stage revealed that the greater detection of high pathological stage (Ⅲ Ⅳ) compared with low stage (Ⅰ Ⅱ) was related to the recurrence of transitional cell carcinoma.Conclusion Our results suggest that the detection of H ras mutations may be of clinical value in the detection of TCC.

Thrombus is a major factor leading to cardiovascular diseases such as myocardial infarction and stroke. Although fibrinolytic anti-thrombotic drugs have been widely used in clinical practice, they are still limited by narrow therapeutic windows, short half-lives, susceptibility to inactivation, and abnormal bleeding caused by non-targeting. Therefore, it is crucial to effectively deliver thrombolytic agents to the site of thrombus with minimal adverse effects. Based on the long blood circulation and excellent drug-loading properties of human serum albumin (HSA), we employed genetic engineering techniques to insert a functional peptide (P-selectin binding peptide, PBP) which can target the thrombus site to the N-terminus of HSA. The fusion protein was expressed using Pichia pastoris and purified by Ni-chelating affinity chromatography. After being loaded with gold nanoparticles (Au NPs), the fusion protein formed homogeneous and stable nanoparticles (named as PBP-HSA@Au) with a diameter of 17.7 ± 1.0 nm and a zeta potential of -11.3 ± 0.2 mV. Cytotoxicity and hemolysis tests demonstrated the superb biocompatibility of PBP-HSA@Au. Platelet-targeting experiments confirmed the thrombus-targeting ability conferred by the introduction of PBP into PBP-HSA@Au. Upon near-infrared ray (NIR) irradiation, PBP-HSA@Au rapidly converted light energy into heat, thereby disrupting fibrinogen and exhibiting outstanding thrombolytic efficacy. The designed HSA fusion protein delivery system provides a precise, rapid, and drug-free treatment strategy for thrombus therapy. This system is characterized by its simple design, high biocompatibility, and strong clinical applicability. All animal experiments involved in this study were carried out under the protocols approved by the Animal Experiment Ethics Committee of Jiangnan University [JN. No20230915S0301015(423)].

Objective To investigate the effect of propofol on the brain injury in children undergoing open heart surgery under cardiopulmonary bypass (CPB).Methods Thirty children aged 4-10 yr undergoing repair of ventricular septal defect or atrial septal defect under CPB were randomly divided into 2 groups ( n = 15 each):control group (group C) and propofol group (group P). Anesthesia was induced with iv injection of sufentanil 1 μg/kg, propofol 2.5 mg/kg (midazolam 0.2 mg/kg in group C) and pipecuronium 0.1 mg/kg in group P. Anesthesia was maintained with iv infusion of 1％ propofol 6 mg·kg-1 ·h-1 (0.05％ midazolam 0.2 mg·kg-1 ·h-1 in group C) until the end of operation. Isoflurane ( 1％-2％ ) were inhaled during the operation in all patients. Sufentanil 1 μg/kg and pipecuronium 0. 1 mg/kg were injected intravenously after the start of CPB. A catheter was inserted into right internal jugular vein and advanced cephalad until jugular bulb for blood sampling before CPB, at 30 min of CPB, at the end of CPB, at 30 min after termination of CPB, at the end of operation, and at 24 h after termination of CPB to detect the plasma concentrations of 8-iso-PGF2 and S-100β by ELISA. Arterial and jugular bulb venous blood samples were collected for determination of SjvO2 before CPB, when naso-pharyngeal temperature was reduced to 30 ℃, when naso-pharyngeal temperature returned to 36 ℃ and at the end of CPB. Cerebral arterial venous oxygen content differences ( Da-jvO2 ) and cerebral oxygen extraction rate of oxygen ( CEO2 ) were calculated. Results Plasma concentrations of 8-iso-PGF2α and S-100β were significantly lower, SjvO2 was significantly higher, Da-jvO2 and CEO2 were significantly lower in group P than in group C (P ＜ 0.05＝. ConclusionPropofol can reduce the brain injury in children undergoing open heart surgery during CPB and the mechanism is related to decrease in cerebral oxygen metabolic rate and lipid peroxidation.