Head and Neck Neoplasms ; surgery ; Hemangioma, Cavernous ; surgery ; Humans ; Infant ; Thoracic Neoplasms ; surgery

To investigate the modulatory action of endogenous and exogenous nitric oxide (NO) on survival of alveolar macrophages (AMs) in different cellular states, AMs from normal rats (normal AMs) and from bleomycin (BLM)-treated rats (BLM AMs) were incubated by sodium nitroprusside (SNP, NO donor) and L-arginin (L-Arg, NO precursor), respectively. The survival of AMs was evaluated by apoptosis and cell cycles. The molecular mechanisms were investigated by the contents of Bcl-2, Bax proteins in AMs. The results are as follows: (1) The degree of BLM AMs apoptosis was higher than that of normal AMs; the number of BLM AMs in G(0)/G(1) phases was less than that of normal AMs; there was no significant difference in S+G(2)M phases between the number of BLM AMs and that of normal AMs. (2) Down-regulation of Bcl-2 and up-regulation of Bax occurred in BLM AMs, compared to those in normal AMs. (3) Apoptosis of AMs, either normal AMs or BLM AMs, was induced by both SNP and L-Arg, when compared to their respective control; only the number of BLM AMs in S+G(2)M phases was increased by L-Arg. (4) SNP and L-Arg induced a down-regulation of Bcl-2 and an up-regulation of Bax proteins in normal AMs, but did not induce the same change pattern in BLM AMs. (5) The Bax in BLM AMs was down-regulated by L-Arg. It is concluded that NO can induce the apoptosis of BLM AMs and normal AMs; that Bcl-2 and Bax are implicated in NO-induced apoptosis of normal AMs, whereas they are not involved in that of BLM AMs, suggesting the differential molecular mechanisms underlying the NO-induced apoptosis of normal AMs and BLM AMs; and that endogenous NO promotes proliferation of BLM AMs, which might be associated with down-regulation of Bax.
Animals ; Apoptosis ; drug effects ; Bleomycin ; Cell Survival ; drug effects ; Cells, Cultured ; Macrophages, Alveolar ; cytology ; pathology ; Male ; Nitric Oxide ; pharmacology ; physiology ; Proto-Oncogene Proteins c-bcl-2 ; metabolism ; Pulmonary Fibrosis ; chemically induced ; pathology ; physiopathology ; Rats ; Rats, Sprague-Dawley ; bcl-2-Associated X Protein ; metabolism

OBJECTIVETo discuss the feasibility of the operation of minimal invasive with gallbladder preserved via choledochoscopy.

METHODSFrom February 1992 to June 2006, there were 760 patients who underwent cholecystolithiasis treated with the minimal invasive operation with gallbladder preserved via choledochoscopy, among which there were 428 males and 332 females, aged from 18 to 81 years old. All cases were diagnosed by ultrasonography and their gallbladder functions were proved normal by the examination of oral cholecystography or ECT before operation. In the operation gallstones were removed from gallbladder completely.

RESULTSThere were 612 cases who were followed up for 1-15 years and the follow-up rate was 80.5%. All patients recovered well after operation. The post-operation rate of recurrence of gallstone was 0.49%, 4.39%, 5.83%, 6.60%, 7.21% and 8.38% within the first year, the second year, the third year, the fifth year, the seventh year and the ninth year respectively, rate of recurrence of gallstone were 10.11% within both the tenth and the fifteenth year.

CONCLUSIONSThe minimal invasive operation with gallbladder preserved via choledochoscopy is effective to cholecystolithiasis patients whose gallbladder function is normal. It is a feasible operation that preserves the normal functional gallbladder and improves the patients' life quality.

Adolescent ; Adult ; Aged ; Aged, 80 and over ; Cholecystolithiasis ; surgery ; Endoscopy, Digestive System ; methods ; Feasibility Studies ; Female ; Follow-Up Studies ; Gallbladder ; surgery ; Humans ; Male ; Middle Aged ; Treatment Outcome ; Young Adult

OBJECTIVE: To investigate the expressions and time-dependent changes of phosphatidylinositol-3-kinase (PI3K), phospho-PI3K (p-PI3K), protein kinase B (PKB/Akt) and phospho-Akt (p-Akt) during wound healing process of mice skin. METHODS: The changes of PI3K, p-PI3K, Akt and p-Akt expression in skin wound were detected by immunohistochemistry, Western blotting and real-time PCR. RESULTS: Immunohistochemistry showed the expression of PI3K and p-Akt were observed in mononuclear and fibroblast after skin wound, and reached peak in reconstruction. The positive bands of PI3K, p-PI3K, Akt and p-Akt were observed in all time points of the wound healing process by Western blotting. The expression peak of p-PI3K and p-Akt showed in inflammation and proliferation; the expression peak of PI3K and Akt in reconstruction. Real-time PCR showed the expression peak of PI3K mRNA in inflammation and reconstruction and the peak of Akt mRNA in reconstruction. CONCLUSION During the wound healing process, the expressions of PI3K, Akt, p-PI3K and p-Akt show different changes with significant correlation to wound time. The expression of PI3K/Akt may be a valuable marker for wound time estimation.
Animals ; Blotting, Western ; Class I Phosphatidylinositol 3-Kinases ; Fibroblasts/metabolism* ; Mice ; Phosphatidylinositol 3-Kinase ; Phosphatidylinositol 3-Kinases/metabolism* ; Phosphorylation ; Proto-Oncogene Proteins c-akt/metabolism* ; Real-Time Polymerase Chain Reaction ; Signal Transduction ; Skin/injuries* ; Wound Healing

This study aims to save cost of sampling for estimating the area under the amlodipine plasma concentration versus time curve in 24 hours (AUC(0-24 h)). Limited sampling strategy (LSS) models was developed and validated by mutiple regression model within 4 or fewer amlodipine concentration values. Absolute prediction error (APE), root of mean square error (RMSE) and visual predict check were used as criterion. The results of Jackknife validation showed that fifteen (9.4%) of the 160 LSS based on regression analysis were not within an APE of 15% by using one concentration-time point. 156 (97.5%), 159 (99.4%) and 160 (100%) of the 160 LSS model were capable of predicting within an APE 15% by using 2, 3, 4 points, separately. Limited sampling strategies have been developed and validated for estimating AUC(0-24 h) of amlodipine. The present study indicated that the implemention of both 5 mg and 10 mg dosage could enable accurate predictions of AUC(0-24 h) by the same LSS model. This study shows that 12, 4, 24, 2 h after administration are key sampling time points. The combination of (12, 4), (12, 4, 24) or (12, 4, 24, 2 h) might be chosen as sampling hours for predicting AUC(0-24 h) in practical application according to requirement.
Administration, Oral ; Adult ; Amlodipine ; administration & dosage ; blood ; pharmacokinetics ; Antihypertensive Agents ; administration & dosage ; blood ; pharmacokinetics ; Area Under Curve ; Asian Continental Ancestry Group ; Calcium Channel Blockers ; administration & dosage ; blood ; pharmacokinetics ; Humans ; Male ; Models, Biological ; Regression Analysis ; Sample Size ; Vasodilator Agents ; administration & dosage ; blood ; pharmacokinetics ; Young Adult

OBJECTIVETo investigate the efficacy of the Chinese medicine Huzhangdanshenyin on male immune infertility, and provide an effective therapy for this disease.

METHODSNinety men with immune infertility were selected as the research subjects and randomly divided into two groups, 60 in the treatment group, treated by Huzhangdanshenyin, and the other 30 in the control, treated by prednisone, both for 3 months. The improvement of clinical symptoms, immunologic indexes (antisperm antibodies in serum and seminal plasma) and sperm indexes (semen liquefied duration, motility, viability, density and abnormal morphology rate) were observed and the results analyzed.

RESULTSThe total antisperm antibody reversing ratio of the treatment group was higher than that of the control (P < 0.01), especially the serum antisperm antibody reversing ratio. There were significant differences in the clinical cure rate and total validity rate between the treatment group and the control (P < 0.01). After the treatment, the markers of the clinical symptoms (P < 0.01), especially the serum antisperm antibody reversing ratio. There were significant differences in the clinical cure rate and total validity rate between the treatment group and the control (P < 0.01). After the treatment, the markers of the clinical symptoms were lower (P < 0.01), and the improvement of the clinical symptoms was better in the treatment group than in the control (P < 0.01), especially the symptoms of pain in the back and knees, distending and bearing-down sensation of the perineum and testis, hypersexuality and topalgias. Compared with pre-treatment, sperm motility and viability of the treatment group significantly improved (P < 0.01), and so did sperm density (P < 0.05). However, there were no significant differences in sperm density, semen liquefied duration, abnormal morphology rate and pH (P > 0.05) before and after the treatment.

CONCLUSIONThe Chinese medicine Huzhangdanshenyin works more effectively than prednisone in the treatment of male immune infertility. It could improve the antisperm antibody reversing ratio, clinical symptoms and signs and ameliorate sperm indexes with no obvious advierse effects.

Adult ; Autoantibodies ; metabolism ; Drugs, Chinese Herbal ; therapeutic use ; Humans ; Infertility, Male ; drug therapy ; immunology ; Male ; Middle Aged ; Phytotherapy ; Sperm Count ; Sperm Motility ; Spermatozoa ; immunology

Objective To evaluate the uncertainty on the determination of cantharidic acid ( CTR) in rat brain microdialysate by HPLC-MS/MS.Methods The uncertainty sources in the determination of CTR were analyzed and the uncertainty were evaluated and combined.Results The expanded uncertainty of CTR at low ( 0.19 ng· mL -1 ) and high ( 35.90 ng · mL -1 ) concentrations were 0.02 ng · mL -1 and 2.08 ng · mL -1 , respectively ( P =95%, k =2 ) .Conclusion The uncertainty on the determination of CTR in rat brain microdialysate by HPLC -MS/MS was mainly caused by matrix effect, calibration curve fitting, repeatability and sample preparation for low concentrations, and matrix effect, sample preparation and repeatability for high concentrations.

OBJECTIVETo investigate the alteration and clinical significance of IFN-γ, IL-4, IL-17 and TGF-β levels in serum of patients with chronic lymphocytic leukemia treated with FCR.

METHODSForty-seven CLL patients treated with FCR regimen were enrolled in CLL group, meanwhile 30 healthy persons were selected in control group. The serum levels of IFN-γ, IL-4, IL-17 and TGF-β were detected by ELISA in CLL group before and after treatment and in control group, then the differences of IFN-γ, IL-4, IL-17 and TGF-β levels as well as IFN-γ/IL-4 ratio and TGF-β/IL-17 ratio were compared between 2 groups.

RESULTSBefore treatment with PCR regimen, the IL-4, IL-17 and TGF-β levels as well as TGF-β/IL-17 in CLL group were higher than those in control group (P<0.05), while the IFN-γ level and IFN-γ/IL-4 ratio in CLL group were lower than those in control group (P<0.05); after treatment with PCR regimen, the IL-4, IL-17 and TGF-β levels as well as TGF-β/IL-17 ratio all significantly decreased (P<0.05), while IFN-γ level and IFN-γ/IL-4 ratio significantly increased (P<0.05) as compared with those before treatment, moreover, the IL-4 and IL-17 levels as well as TGF-β/ IL-17 and IFN-γ /IL-4 ratio were no significantly different from those in control group (P>0.05), only the IFN-γ and TGF-β levels were significantly diffrent from control group (P<0.05). The analysis of Binet staging (stage A, B, C) showed that along with pregression of Binet stages, the TGF-γ/IL-17 levels as well as the IFN-γ/IL-4 ratio in CLL group negatively correlated with Binet staging (r=-0.53), while the TGF-β/IL-17 ratio positively correlated with Binet staging (r=0.46). The analysis of grouping accoraing to therapentic efficacy fonnd that the IL-4 and IL-17 levels and IFN-γ/IL-4 and TGF-β/IL-17 ratios in CR and PR groups were significantly different before and after treatment (P<0.05), while those in SD and PD groups did not showed statistical difference before and after treatment (P>0.05).

CONCLUSIONAlong with the progression of disease, the IFN-γ/ IL-4 ratio gradually decreases, and the TGF-β / L-17 ratio gradually increases. The treatment with FCR regimen can overcome this tread, therefore dynamically monitoring the chages of IFN-γ/ IL-4 and TGF-β / L-17 ratios may contribute to guide the clinical treatment.

Parasitic diseases are common infectious diseases closely related to poverty,which are mainly endemic in the trop-ical and subtropical regions.Africa is the major epidemic area of parasitic diseases,and the global burden of malaria and schisto-somiasis is over 85% in Africa.This paper reviews the disease burden,regional distribution and control strategies of the main parasitic diseases in Africa,in order to promote the prevention and control of parasitic diseases in this area.

OBJECTIVE: Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disease with high morbidity and mortality. There are about 5%-15% of ALS patients combining with frontotemporal lobe degeneration (FTLD) at the same time and 50% of patients combing with cognitive function changes. The analysis of cortical thickness based on MRI is an important imaging method to evaluate brain structure. The aim of the study was to explore the changes of brain structure in ALS patients by cortical thickness analysis, and to explore the correlation between the brain structure and cognitive function. METHODS: In the study, 18 ALS patients treated in Department of Neurology, Peking University Third Hospital and 18 normal controls (age, gender and education level matched) were included. 3D magnetization prepared rapid gradient echo imaging (MPRAGE) sequence MRI was performed and the cortical thickness was analyzed. At the same time, all the ALS patients took neuropsychology assessments, including: mini-mental state examination (MMSE), verbal fluency test (VFT), Stroop color word test (SCWT), prospective memory (PM), emotional picture perception and recognition, and faux pas story test. RESULTS: After cognitive assessment, two ALS patients had cognitive impairment. One was in accordance with ALS-frontotemporal dementia (FTD) diagnosis and the other one was in accordance with ALS cognitive impairment (ALSci) diagnosis. In all the 18 ALS patients and 18 normal controls, the cortical thickness of the left medial orbitofrontal lobe and the medial temporal lobe were significantly reduced (P < 0.05) in ALS group by the vertex-wise comparison. Cortical thickness of the left entorhinal cortex, the left inferior temporal gyrus, the left medial orbitofrontal lobe and the left insular lobe was significantly reduced (P < 0.05) by the region-wise comparison. However, when only concluded the 16 ALS non-cognitive impairment patients, there was no significant difference between the two groups (P>0.05). There were correlations between the scores of prospective memory, emotional picture perception and recognition, faux pas story test and the cortical thickness of their corresponding regions (P < 0.05). CONCLUSION The cortical thickness of ALS patients are correlated with neuropsychological scores which may reflect the changes of cortical structure corresponding to the cognitive assessment, and may provide help for the early diagnosis of cognitive changes in ALS patients.
Humans ; Amyotrophic Lateral Sclerosis/diagnostic imaging* ; Neurodegenerative Diseases ; Frontotemporal Dementia/psychology* ; Neuropsychological Tests ; Cognitive Dysfunction/etiology* ; Magnetic Resonance Imaging/methods*