Objective To discuss the frequent etiology of spontaneous sub-cortical hemorrhage and its diag- nosis.Methods The clinical materials of 79 cases of spontaneous sub-cortical hemorrhage were analyzed.Results 56% of the hemorrhage was caused by arterial-venous malformation.48% of the hemorrhage was caused by occult AVM.Conclusion AVM is the most frequent etiology of spontaneous sub-cortical hemorrhage.CTA plays a special role in its diagnosis.

By reverse transcription-polymerase chain reaction (RT-PCR), an open reading frame of pathogenesis-related protein 1 (PR1) was isolated from Panax notoginseng and named as PnPR1. Molecular and bioinformatic analyses of PnPR1 revealed that an open reading frame of 501 bp was predicted to encode a 166-amino acid protein with a deduced molecular mass of 18.1 kD. Homology analysis showed that the deduced amino acid sequence of PR1 protein of Panax notoginseng had a high similarity with other higher plants had the same conservative structure domain of cysteine-rich secretory protein (CAP). The recombinant expressed plasmid pET28a(+)-PnPR1 was expressed in Escherichia coli BL21. The expression conditions were optimized by induction at different times, different temperatures, different IPTG concentrations and different giving times. The optimum expression condition was 0.4 mmol.L-1 IPTG at 28 degrees C for 20 h. The successful expression of PnPR1 provides some basis for protein purification and preparation of the monoclonal antibody.
Amino Acid Sequence ; Cloning, Molecular ; Escherichia coli ; metabolism ; Molecular Weight ; Open Reading Frames ; genetics ; Panax notoginseng ; chemistry ; Phylogeny ; Plant Proteins ; genetics ; metabolism ; Plants, Medicinal ; chemistry ; Reverse Transcriptase Polymerase Chain Reaction ; Sequence Alignment

OBJECTIVETo validate the therapeutic efficacy of paroxetine in the treatment of premature ejaculation (PE).

METHODSEighty PE patients up to the inclusion criteria were equally randomized to an experimental and a control group. We observed all the patients for 4 weeks and recorded the baseline data on intravaginal ejaculatory latency time (IELT) and sexual satisfaction scores, followed by oral medication of paroxetine at 20 mg/d for the patients in the experimental group and placebo for the controls. Thirty days after the treatment, we again recorded IELT and sexual satisfaction scores of the patients.

RESULTSAfter the treatment, the experimental group showed significantly prolonged IELT ([5.75 +/- 1.24] min) and increased sexual satisfaction score (6.4 +/- 1.2) as compared with the baseline data ([0.89 +/- 0.21] min and [2.7 +/- 0.9]) (P < 0.01). The control group exhibited no significant differences before and after the medication either in the mean IELT or in sexual satisfaction scores ([1.06 +/- 0.28] min vs [0.97 +/- 0.18] min and 3.6 +/- 1.3 vs 3.1 +/- 1.1, P > 0.05).

CONCLUSIONOral medication of paroxetine at 20 mg/d for 30 days could improve IELT and sexual satisfaction in PE patients.

Adult ; Ejaculation ; Humans ; Male ; Paroxetine ; therapeutic use ; Serotonin Uptake Inhibitors ; therapeutic use ; Sexual Dysfunction, Physiological ; drug therapy ; Treatment Outcome ; Young Adult

OBJECTIVETo observe the histopathological finding of bone remodeling in rabbit sinusitis model at different time and the tendency, and to discuss the effect of bone in the pathogenesis of sinusitis.

METHODSFirst, the rabbit sinusitis model was made, then the experimental animals were divided into 3 groups according to the time of infection. There were 8 rabbits in each experimental group, and 4 rabbits in the control group. The sinus specimen were collected, embedded and stained. The bone in the inoculating side and noninoculating side was scored, and the bone in inoculating side was evaluated quantitatively and semiquantitatively. The parameters included the thickness of mucosa, mucoperiosteum, the density of osteoblast, the amount of osteoclast.

RESULTSThe average bone score in the inoculating side was 2.250, 2.875, 2.875; in the noninoculating side was 1.625, 2.250, 2.500. Between group A and the control group, the difference of all three parameters had statistical significance. Between group B and group A, the difference of the thickness of mucosa and the density of osteoblast had statistical significance. Between group C and group B, none of the three parameters had statistical significance.

CONCLUSIONSBacterial sinusitis can lead to bone remodeling, obvious bone destroy can occur at the early phase, then the bone proliferation follows. These results demonstrate that bone remodeling is one of the basic histopathological characters of CRS and might be the reason to lead CRS to a constant and chronic process of inflammation.

Animals ; Bone Remodeling ; Disease Models, Animal ; Inflammation ; Nasal Bone ; pathology ; Rabbits ; Sinusitis ; pathology

Poplar(Pupulus x Xiao zhannica, cv. "balizhuang-yang") transferred with mtl-D gene was used as an experimental material. Through tissue culture, aquaculture and pot culture transgenic poplars are tested with variant Nacl salt gradient. In it transgenic poplar raises its initial days for differentiation, differentiation rate, bud intensity, bud height and growth potential than control plant. At the same time, the transgenic poplar has higher rooting rate and more top roots, side roots and higher root length than control under the same salt stress. The result shows that the transgenic poplar has better tolerance ability than control plant in the salt 4@1000 contensity mediums.
Adaptation, Physiological ; genetics ; Dose-Response Relationship, Drug ; Drug Resistance ; genetics ; Plants, Genetically Modified ; Populus ; drug effects ; genetics ; growth & development ; Sodium Chloride ; pharmacology

OBJECTIVEThe aim of this study was to access the relationship of osteolytic bone metabolic markers such as serum type I collagen carboxy-terminal telopeptide (sICTP), N-terminal cross-linked telopeptides of type I collagen (uNTx), urinary pyridinoline (uPyd) with the therapeutic effect in breast cancer patients with bone metastases.

METHODS120 patients with breast cancer were included in this study. The levels of sICTP, uNTx and uPYD were measured by ELISA assay. The differences were compared between patients with and without bone metastasis. The patients with bone metastasis were treated and followed up as clinically indicated.

RESULTSThe levels of all above mentioned biomarkers in patients with bone metastasis were significantly higher than that in patients without bone metastasis (P < 0.01). A significant correlation was found between each two markers (r > 0.5, P < 0.01). The biomarkers were examined again in 45 patients with bone metastasis after treatment to evaluate the treatment response. The median follow-up was 10 months. Based on clinical evaluation criteria, 25 patients were responders and 20 were non-responders. For responders, after 3 months treatment, the levels of the three bone markers were significantly reduced (P = 0.025, P < 0.001, P < 0.001). But for non-responders, with progression of bone lesions, the levels of the three markers were significantly raised (P = 0.011, P = 0.002, P = 0.002). By means of multiple logistic regression with stepwise selection, the uPyd and uNTx activities were closely correlated with treatment response (OR = 17.0, P = 0.019; OR = 16.7, P = 0.015), however, the sICTP did not show any correlation with treatment response P = 0.841).

CONCLUSIONThe levels of sICTP, uNTx and uPyd may be used as indicators in assessment of the effect of antiresorptive treatment and evaluation of prognosis in breast cancer patient with bone metastases.

Adult ; Aged ; Amino Acids ; urine ; Biomarkers, Tumor ; metabolism ; Bone Neoplasms ; drug therapy ; metabolism ; secondary ; Breast Neoplasms ; drug therapy ; metabolism ; pathology ; Collagen ; urine ; Collagen Type I ; blood ; Disease Progression ; Female ; Follow-Up Studies ; Humans ; Middle Aged ; Peptides ; blood ; Remission Induction

The purpose of this study was to detect the minimal residual disease (MRD) in peripheral blood of newly diagnosed patients with acute myeloid leukemia (AML) on day 8 of induction chemotherapy and analyze the correlation between day 8 MRD (D8RD) and therapeutic effectiveness. 29 adult patients (13 males and 16 females, aged 16 - 75 years, median 41 years) with AML diagnosed and treated in West China Hospital from September 2009 to June 2010 were analyzed and followed up in the study. The leukemia-associated aberrant immunophenotype (LAIP) of all the patients were detected by multiparameter flow cytometry (FCM) before therapy. The level of MRD in the peripheral blood at day 8 of induction chemotherapy was detected by FCM based on the LAIP. The overall survival curve was drawn by calculation using Kaplan-Meier method using, and the comparison between different groups was carried out by Log-rank test. The results indicated that after first course therapy, the levels of peripheral D8RD in 7 out of 29 AML cases were lower than 0.01% (negative group), and that in another 22 cases were higher than 0.01% (0.08% - 55%, positive group). The sex, age, WBC, LDH, percentage of bone marrow blasts at diagnosis in these groups were not statistically different. 6 cases achieved CR (86%) in D8RD negative group, and also 6 cases achieved CR (27%) in D8RD positive group, CR rate in D8RD negative group was higher than in D8RD positive group (86% vs 27%, P < 0.05). The median follow-up of 29 cases lasted for 15 months; the 1-year overall survival rate of D8RD negative and D8RD positive groups was 100% and 39.4%, respectively (P < 0.01). It is concluded that MRD level in peripheral blood at day 8 of induction chemotherapy is an early index to predict clinical efficacy of induction therapy in AML.
Adolescent ; Adult ; Aged ; Early Diagnosis ; Female ; Flow Cytometry ; Humans ; Leukemia, Myeloid, Acute ; blood ; drug therapy ; mortality ; Male ; Middle Aged ; Neoplasm, Residual ; diagnosis ; drug therapy ; mortality ; Prognosis ; Survival Rate ; Treatment Outcome ; Young Adult

OBJECTIVETo investigate the predictive value of CEA and CA19-9 in tumor progression, prognosis and neoadjuvant chemotherapy of advanced gastric cancer.

METHODSClinical data of 322 patients with advanced gastric cancer(54 cases undergoing neoadjuvant chemotherapy) from the Affiliated Oncologic Hospital of Guangzhou Medical College were reviewed. Serum CEA and CA19-9 levels were detected by electrochemiluminescence immunoassay, while the expression of CEA and CA19-9 protein in 54 pairs of tumor tissues and matched biopsies neoadjuvant chemotherapy were determined by immunohistochemistry.

RESULTSThe expression levels of serum CEA and CA19-9 were closely related to tumor invasion, lymph node metastasis and TNM stage(all P<0.05). The 5-year cumulative survival rates of patients with serum CEA-positive and CA19-9-positive were 17.0% and 11.9%, compared with 34.6% and 34.8% of the patients with serum CEA-negative and CA19-9-negative respectively (both P<0.05). Neoadjuvant chemotherapy could down-regulate CEA and CA19-9 expressions in tumor tissues(P<0.05), while there was no significantly difference in serum level(P>0.05).

CONCLUSIONSThe expressions of serum CEA and CA19-9 are closely associated with tumor progression and prognosis in advanced gastric cancer. However, further study should be done to evaluate their value in selecting patients to receive neoadjuvant chemotherapy.

CA-19-9 Antigen ; blood ; Carcinoembryonic Antigen ; blood ; Humans ; Immunohistochemistry ; Lymphatic Metastasis ; Neoadjuvant Therapy ; Neoplasm Staging ; Prognosis ; Stomach Neoplasms ; diagnosis ; therapy ; Survival Rate

A simple, sensitive and reproducible high-performance liquid chromatography (HPLC) method has been validated for determining concentrations of glutamate, glycine, and alanine in human plasma. Proteins in plasma were precipitated with perchloric acid, followed by derivatization with 6-aminoquinolyl-N-hydroxysuccinimidyl carbamate (AQC). Simultaneous analysis of glutamate, glycine, and alanine is achieved using reversed-phase HPLC conditions and ultraviolet detection. Excellent linearity was observed for these three amino acids over their concentration ranges with correlation coefficients (r)>0.999. The intra- and inter-day precision were below 10%. This method utilizes quality control samples and demonstrates excellent plasma recovery and accuracy. The developed method has been successfully applied to measure plasma glutamate, glycine, and alanine in twenty volunteers.
Alanine ; Amino Acids ; Aminoquinolines ; Carbamates ; Chromatography, High Pressure Liquid ; Chromatography, Liquid ; Glutamic Acid ; Glycine ; Humans ; Perchloric Acid ; Plasma ; Proteins ; Quality Control

OBJECTIVETo explore the pattern of variations in middle cerebral artery peak systolic velocity (MCA PSV) and cardiothoracic ratio (CTR) during early pregnancy, establish their reference ranges and explore their correlation with the crown-rump length (CRL).

METHODSA total of 522 pregnant women with normal findings in antenatal examinations underwent routine color Doppler ultrasound examination to collect the data of MCA PSV, CTR and CRL. The reference ranges of MCA PSV and CTR for different CRL levels were established, and the correlation of MCA PSV and CTR with CRL was analyzed.

RESULTSDuring the first trimester, MCA PSV and CRL showed a moderate positive correlation with a correlation coefficient of 0.426 (P<0.001), while CTR and CRL showed no significant correlation (0.168, P<0.001). The reference range of MCA PSV was 14.35 (14.08-14.62) cm/s and that of CTR was 0.34 (0.33-0.34) during early pregnancy.

CONCLUSIONColor Doppler ultrasound is a safe and feasible modality to assess fetal MCA PSV and CTR for detecting fetal growth abnormalities in early pregnancy. The established reference ranges of MCA PSV and CTR offer a clinical theoretical basis for detecting α-thalassemia in early pregnancy.

Blood Flow Velocity ; Crown-Rump Length ; Female ; Fetal Diseases ; diagnostic imaging ; Humans ; Middle Cerebral Artery ; physiology ; Pregnancy ; Pregnancy Trimester, First ; Reference Values ; Systole ; Ultrasonography, Doppler, Color ; Ultrasonography, Prenatal