Objective To study the expression of epidermal growth factor receptor (EGFR) in cervical car-cinoma and cervical intraepithelial neoplasia(CIN),and to elucidate its relation with the genesis, infiltration, metas-tasis and prognosis of cervical carcinoma. Methods EGFR was determined by means of S-P immunohistochemistry in tissue of 100 cases of cervical carcinoma,60 cases of CIN and 40 cases of controls. Results The overexpression rates of EGFR were 0% (0/40), 51.67% (31/60),78.00% (78/100), respectively in normal cervical epithelium, CIN and cervical tumor tissues. The overexpression rate of EGFR was significantly higher in cervical tumor tissue than in control group(P<0.01). The overexpression of EGFR didn't demonstrate significant association with clinical staging, tumor size, pathological type, differentiation, cervical invasion depth, cervical canal invasion, lymphnode me-tastasis or the prognosis of cervical neoplasm (P>0.05). Conclusion Overexpression of EGFR is worsened with the severity of cervical lesion, suggesting that overexpression of EGFR is correlated with the genesis of cervical neo-plasms,which may be a valuable biological indicator of cervical carcinoma,but is not correlated with clinical patho-logical features and prognosis of cervical carcinoma.

· AIM: To explore the dynamic expression and correlation among telomerase catalytic subunit (TERT), proliferating cell nuclear antigen ( PCNA) and antiapoptosis protein Bd-2 which relate to cell proliferation in epiretinal membrane of rat traumatic proliferative vitreoretinopathy(PVR).· METHODS: S-P technique was applied for immunohistochemical staining of epiretinal membrane of traumatic PVR with TERT, PCNA and Bcl-2 antibody. HE staining was also carried out. The staining results were analyzed with image analysis system.· RESULTS: The positive rate and average A of PCNA protein were upregulated at first and then down-regulated, with the peak value in 14d Group, which was significantly different from those in 7d Group and 28d Group.The positive rate and average A of TERT and Bcl-2 were also upregulated at first and then down-regulated, with the peak value in 14d Group and 21d Group, which were significantly different from those in 7d Group. There was significant correlation among PCNA, Bcl-2 and TERT protein expression (P≤0.01).· CONCLUSTON: TERT and Bcl-2 take part in the regulation of proliferative cells in epiretinal membrane of traumatic proliferative PVR, with high correlation with the dynamic changes of cell proliferation.

Humans ; Intestinal Obstruction/complications* ; Ileus/etiology* ; Abdominal Injuries/complications*

We reviewed the modern development of clinical application and experimental reseach on the prescription Biejiajian Wan (BJ), which are the basement that we will study its anti-renal fibrosis. At present, the prescription BJ is mainly applied to the treatment of chronic heptic desease. Its experimental reseach is mainly confined to the studing of anti-heptic fibrosi. Refering the scientific and technological result of anti-heptic fibrosis, we think the prescription BJ would have the effection of anti-renal fibrosis on the basis of theory of planning treatment according to diagnosis. But it has not been reported to the prescription BJ on the clinical and experimental reseach on anti-renal fibrosis. Therefore, it is very important to take on clinical reseach of the prescription BJ and discuss the effecting mechanism of anti-renal fibrosis from the level of integration, cell and molecule, which will help to enlarge the clinical application of the prescription Biejiajianwan and explained the essence of "persistent diseases injuring collateral branch of large channel" in traditional Chinese medicine.
Animals ; Clinical Medicine ; Drugs, Chinese Herbal ; pharmacology ; therapeutic use ; Fibrosis ; drug therapy ; pathology ; Humans ; Kidney ; drug effects ; pathology ; Laboratories ; Prescription Drugs ; pharmacology ; therapeutic use

OBJECTIVETo study the effect of peroxisome proliferator activated receptor γ (PPAR-γ) agonist on the angiotensin converting enzyme 2 (ACE2) mRNA expression in monocyte-derived macrophages of essential hypertensive patients.

METHODSTotally 57 essential hypertensive patients were randomly divided into three groups: conventional treatment group (n=18), telmisartan group (n=19), and benazepril group (n=20); 20 patients with normal blood pressure were also selected as the control group. Monocyte-derived macrophages were isolated from blood samples of patients in all four groups. The expression of ACE2 mRNA in monocyte-derived macrophages was detected by RT-PCR before treatment and 4 and 12 weeks after treatment.

RESULTSFour and 12 weeks after treatment, the systolic pressure and diastolic pressure of telmisartan group and benazepril group were significantly lower than that of the conventional treatment group (all P<0.01), and the systolic pressure and diastolic pressure of telmisartan group were significantly lower than that of the benazepril group(both P<0.01) .The expression of ACE2 mRNA in monocyte-derived macrophages were significantly lower in essential hypertensive patients than that in control group (P<0.01). After having been treated for 4 weeks and 12 weeks, the expression of ACE2 mRNA in monocyte-derived macrophages of hypertensive patients in telmisartan and benazepril groups were significantly higher than that in conventional treatment group (all P<0.01), and the expression of ACE2 mRNA in telmisartan group was significantly higher than that in benazepril group (both P<0.01).

CONCLUSIONPPAR-γ agonist could increase the ACE2 mRNA expression in monocyte-derived macrophages of essential hypertensive patients.

Aged ; Benzazepines ; pharmacology ; Benzimidazoles ; pharmacology ; Benzoates ; pharmacology ; Female ; Humans ; Hypertension ; drug therapy ; enzymology ; Macrophages ; enzymology ; Male ; Middle Aged ; PPAR gamma ; agonists ; Peptidyl-Dipeptidase A ; genetics ; metabolism ; RNA, Messenger ; genetics

OBJECTIVETo investigate the value of fetal chromosomal karyotype analysis in cases of early spontaneous abortion.

METHODSChorionic villus specimens obtained from 110 cases of early spontaneous abortion were cultured for karyotype analysis.

RESULTSOf the 110 cases, chorionic villus was successfully cultured in 103 cases (93.7%), and abnormal embryo karyotypes were identified in 52 cases (50.5%). Trisomy was the most frequent embryo karyotype abnormalities in these cases, and chromosomal aberration occurred in 29 cases (52.9%) of the first spontaneous abortion and in 23 cases (42.6%) of repeated abortions. Female fetuses accounted for 75.5% (78 cases) in the spontaneously aborted fetuses and for 67.3% (35 cases) in fetuses with chromosomal abnormalities.

CONCLUSIONEmbryo chromosomal abnormality is the most important reason of early spontaneous abortion, and karyotype analysis of the villus helps identify the causes of abortion and ensure the success of the next pregnancy.

Abortion, Spontaneous ; genetics ; pathology ; Adult ; Cells, Cultured ; Chorionic Villi ; pathology ; Female ; Humans ; Karyotyping ; Pregnancy ; Pregnancy Trimester, First ; Trisomy ; genetics

OBJECTIVETo describe the epidemiological characteristics of overweight and obesity among people aged 18 and over in Guangdong province in 2002, and to identify the populations and regions under high risk.

METHODSCross-sectional survey was used through sampling on multi-stage randomized clusters. Data of socialeconomic status were collected by face-to-face interview. Data on weight and height was obtained through physical check-ups.

RESULTSA sample size of 15 130 people and the mean body mass index (BMI) was 22.03 +/- 3.38 with no significant difference between males and females. However the significant difference was seen between cities and rural areas. The crude prevalence rate of overweight and obesity were 16.8% and 1.8%, and the age-adjusted rate were 15.0% and 1.7%, respectively. The crude rate of overweight in cities (24.8%) and males (17.5%) were higher than that in rural areas (9.4%) and females (16.2%). The crude rate of obesity in cities was seen higher than that in the rural areas, but not significantly different between females and males. The results of logistic regression analysis showed that the major risk factors influencing overweight would include household income, age, gender, smoking habits, physical exercises and location of residence.

CONCLUSIONAbout one sixth of the citizens in Guangdong province were considered to be overweighted and obesive had become an important public health problem. Integrated measures must be taken for prevention and control.

Adolescent ; Adult ; Body Mass Index ; China ; epidemiology ; Cross-Sectional Studies ; Diet ; Exercise ; Female ; Humans ; Male ; Obesity ; epidemiology ; Overweight ; Prevalence ; Risk Factors ; Sampling Studies ; Socioeconomic Factors ; Surveys and Questionnaires

OBJECTIVETo investigate the lymph nodes distribution and metastatic pattern of the ultra-low rectal cancer after neoadjuvant therapy.

METHODSA total of 21 rectal cancer gross specimen after neoadjuvant therapy and 23 rectal cancer gross specimen without neoadjuvant therapy were investigated by whole mount section and tissue microarray techniques with CK20. All the patients were treated by abdominoperineal resection.

RESULTSThere were 138 lymph nodes retrieved from the mesorectum in the neoadjuvant group including 39 metastatic lymph nodes and 12 micro-metastatic lymph nodes. Among these nodes, there were 7 rectal cancer cases with lymph nodes and 2 cases with micro-metastatic lymph nodes, and 6 cases had pathological complete remission. There were 415 lymph nodes retrieved from the mesorectum in the group without neoadjuvant therapy including 169 metastatic lymph nodes and 59 micro-metastatic lymph nodes. Among these nodes, there were 12 rectal cancer cases with lymph nodes and 4 cases with micro-metastatic lymph nodes. The proportions of metastatic lymph nodes in outer zone between the two groups were 21.5% and 29.0%, and those in pre-zone were 17.6% and 17.2% respectively. The ratio of metastatic lymph nodes in ischiorectal fossa between the two groups were 25.0% vs. 22.2% respectively. The rate of metastatic or micro-metastatic lymph nodes cases between the two groups were 4.8% vs. 13.0% respectively.

CONCLUSIONSThe lymph nodes distribution and metastatic pattern of the ultra-low rectal cancer are affected by neoadjuvant therapy. The proportions of the anal sphincter invasion and metastatic or micro-metastatic lymph nodes in ischiorectal fossa are lower after neoadjuvant therapy. Abdominoperineal resection as the standard treatment of the ultra-low rectal cancer after neoadjuvant therapy should be re-evaluated.

Biopsy ; Digestive System Surgical Procedures ; Humans ; Lymph Nodes ; pathology ; Lymphatic Metastasis ; Neoadjuvant Therapy ; Rectal Neoplasms ; pathology ; therapy

OBJECTIVELong term glucocorticoid (prednisolone) treatment on human growth hormone (hGH) secretion in children and adolescents and to investigate the effectiveness and safety of the recombinant human growth hormone (rhGH) treatment.

METHODSTwelve patients (age: 10.4∓1.2 years) who were treated in Peking Union Medical College Hospital from September 1999 to November 2009 were enrolled in this study. All of them had taken prednisolone with a dose of 0.5∓2.0 mg/(kg.d) for 6~18 months. Two different hGH stimulating tests was done and their growth and development was evaluated at regular intervals. Seven patients were given rhGH with a dose of 0.1 U/(kg.d) for 6~12 months to improve their growth and development after half a year of prednisolone withdrawal when their disease conditions were improved.

RESULTSThe growth speed of these 12 children decreased significantly during prednisolone treatment compared with before prednisolone treatment (1.2∓0.3cm/year vs.3.7∓1.2 cm/year,P12 months than those with a 6~12 months course (P0.05). The growth speed of seven children who received rhGH therapy for half a year were increased from 2.2∓0.1cm/year to 7.8∓0.5cm/year (P<0.05), and then to 6.9∓0.4cm/year one year later.

CONCLUSIONSThe long-term glucocorticoid treatment can decrease the hGH secretion, and thus leads to short stature and agenesis. However, the rhGH replacement can safely and effectively improve growth and development in these children after their primary diseases are improved and glucocorticoids are withdrawn.

Adolescent ; Child ; Female ; Follow-Up Studies ; Glucocorticoids ; adverse effects ; therapeutic use ; Human Growth Hormone ; secretion ; therapeutic use ; Humans ; Male ; Recombinant Proteins ; therapeutic use ; Treatment Outcome

The photoluminescence properties of carbon quantum dots depend on their size and the properties of surface functional groups. The N-doped carbon dots ( using small molecular ethylenediamine ) with high quantum yield and excellent dispersibility were synthesized by one-step hydrothermal method with biomass tar that was generated in the reductive smelting process as a precursor. Rapid and accurate Fe3+ detection based on the selective fluorescence quenching effect of N-doped carbon quantum dots was achieved. The results showed that the as-synthesized N-doped carbon quantum dots were regular spherical, uniform in size with an average particle size of 2. 64 nm with a quantum yield of 26. 1%, and the crystal lattice spacing was 0. 25 nm, corresponding to the ( 100 ) facet of graphitic carbon structure. The functional groups on the surface of N-doped carbon quantum dots could interact with Fe3+ to form complex compound by coordination, leading to the fluorescence quenching effect. Fluorescence emission ratios kept a linear relationship with the concentrations of Fe3+ in the range of 0. 23-600 μmol/L with the detection limit of 230 nmol/L.