The coordination compound of L-hydroxyproline (Hyp)-Zn (II) was synthesized with Hyp and zinc sulfate as raw materials in water medium, coordination Synthesizing Mechanism and Antioxidant Activity of Hyp-Zn(II) coordination compound has been researched. Compared with Hyp, the infrared spectrogram of Hyp-Zn (II) coordination compound emerge a new absorption peak at 1100 cm(-1). Conclusion could be obtained that there exists a coordination effect between Hyp and ZnSO4; TG and DSC curve of Hyp and Hyp-Zn(II) coordination compound were analysed. Compared with Hyp, the peak of Hyp-Zn(II) disappear at 290 degrees C and 375 degrees C. This phenomenon confirmed the front conclusion; At the NMR graph of Hyp-Zn(II) coordination compound, the disappearance of the alpha-carboxyl-hydrogen and alpha-hydroxyl-hydrogen's peak at 3.5-3.9 ppm could indicate that combination's position of Hyp is alpha-carboxyl and alpha-hydroxyl; Structure of Hyp-Zn(II) coordination compound were exosyndrome by the Atomic Force microscopy. It is showed that centr-atom Zn(II) was surrounded by several Hyp at Hyp-Zn(II) coordination compound's phase diagram; The proportion of Hyp-Zn(H) coordination compound was determined by dialysis experiment, the proportion is 4:1; Above-mentioned determination and exosyndrome indicated that the molecular formula of Hyp-Zn (II) coordination compound is Zn(Hyp)4.H2O. The results indicated that the Hyp-Zn(II) coordination compound can inhibit hydroxyl free radicals of Zn(II), and the Percentage of Inhibition is 75.5%; the total antioxidant activities of Hyp-Zn(II) coordination compound is 80.167 u/mL, the anti-superoxide activities of Hyp-Zn (II) coordination compound is 53.19 u/mL.
Antioxidants ; chemistry ; Drug Compounding ; Hydroxyproline ; chemistry ; Zinc Sulfate ; chemistry

OBJECTIVETo explore the changes in the expressions of the tight junction related protein occludin and junctional adhesion molecule-1 (JAM-1) of the blood-testis barrier and their significance in rats after microwave radiation.

METHODSEighty male Wistar rats were exposed to microwave radiation with average power density of 0, 10, 30 and 100 mW/cm2 for five minutes, and dynamic changes in the expressions of testicular occludin and JAM-1 were observed by Western blot and image analysis at 6 h, 1 d, 3 d, 7 d and 14 d after the radiation.

RESULTSThere was a significant down-regulation in the expression of the occludin protein at 3 - 7 d, 6 h - 7 d and 6 h - 14 d (P < 0. 05), as well as in that of JAM-1 at 3 - 7 d, 1 - 7 d and 1-14 d (P < 0.05) after exposure to 10, 30 and 100 mW/cm2 microwave radiation.

CONCLUSIONThe decreased protein expressions of occludin and JAM-1 may play an important role in the microwave radiation induced-damage to the blood-testis barrier.

Animals ; Blood-Testis Barrier ; metabolism ; radiation effects ; Cell Adhesion Molecules ; metabolism ; Down-Regulation ; Male ; Membrane Proteins ; metabolism ; Microwaves ; Occludin ; Rats ; Rats, Wistar ; Testis ; metabolism ; radiation effects

OBJECTIVETo investigate the effect of long-term microwave radiation on male reproduction in rats.

METHODSA total of 100 male Wistar rats were exposed to microwave radiation with average power density of 0, 2.5, 5 and 10 mW/cm2 for 4 weeks, 5 times a week and 6 minutes per time. Changes in serum testosterone, testicular index, histology and ultrastructure, and the percentage of teratospermia in the epididymis were observed dynamically at 6 h, 7 d, 14 d, 28 d and 60 d after the exposure.

RESULTSThere was a significant decrease in serum testosterone concentration at 28 d after microwave radiation at 2.5, 5 and 10 mW/cm2 ([10.20 +/- 4.31] ng/ml, [5.56 +/- 3.47] ng/ml and [7.53 +/- 4.54] ng/ml) and at 60 d at 10 mW/cm2 ( [15.95 +/- 9.54] ng/ml), as compared with the control group ([23.35 +/- 8.06] ng/ml and [31.40 +/- 9.56] ng/ml) (P < 0.05 or P < 0.01). No significant changes were found in the testis index at 6 h -60 d after microwave radiation at the three doses, but different degrees of degeneration, necrosis and shedding of spermatogenic cells, thinning of spermatogenic epithelia, and decrease or deletion of spermatozoa were observed, and more obvious at 28 d and 60 d. Swelling and cavitation of mitochondria in all spermatogenic cells, agglutination and margin translocation of nuclear chromatin in the spermatogonial and Leydig cells were seen at 7 d and 60 d after 5 mW/cm2 microwave radiation. The rate of teratospermia of the epididymis was increased, more obviously at 7 d after 2.5, 5 mW/cm2, 60 d after 5 mW/cm2, and 7 d, 28 d and 60 d after 10 mW/cm2 microwave radiation (P < 0.05 or P < 0.01).

CONCLUSIONLong-term microwave radiation may cause injury to male reproduction, which is positively correlated with the radiation dose, and has an obvious late effect.

Animals ; Dose-Response Relationship, Radiation ; Male ; Microwaves ; adverse effects ; Rats ; Rats, Wistar ; Reproduction ; radiation effects ; Sperm Head ; radiation effects ; Testis ; radiation effects

OBJECTIVETo study the development of changes for Raf kinase inhibitor protein (RKIP) and its mRNA in rats hippocampus after electromagnetic radiation.

METHODSRats were exposed to X-band high power microwave (X-HPM), S-band high power microwave (S-HPM) and electromagnetic pulse (EMP) radiation source respectively. The animal model of electromagnetic radiation was established. Western blot was used to detect the expression of RKIP, and RT-PCR was applied to detect the expression of RKIP mRNA. The interaction of RKIP and Raf-1 was measured with co-immunoprecipitation method, and the expression of cerebral choline acetyltransferase (CHAT) was measured by immunohistochemistry.

RESULTSThe expression of RKIP significantly down-regulated at 6 h after radiation, and recovered at 1 d in group EMP, but the down-regulation continued during 1 approximately 7 d after radiation in the two microwave groups. The expression of RKIP mRNA changed wavily during 6 h approximately 7 d after radiation, which showed down-regulation at 6 h, and up-regulation at 3 d. The interaction of RKIP and Raf-1 decreased during 6 h approximately 7 d after radiation, most significantly at 7 d, and the two microwave groups were more significant. The expression of CHAT decreased continuously during 6 h approximately 7 d after radiation, and generally recovered on 14 d.

CONCLUSIONThe down-regulation of RKIP and its related proteins of hippocampus is induced by electromagnetic radiation.

Animals ; Electromagnetic Radiation ; Hippocampus ; metabolism ; radiation effects ; MAP Kinase Kinase Kinases ; metabolism ; Male ; Phosphatidylethanolamine Binding Protein ; genetics ; metabolism ; Proto-Oncogene Proteins c-raf ; RNA, Messenger ; genetics ; Rats ; Rats, Wistar

OBJECTIVETo explore whether microwave radiation may cause injury of primary cultured Sertoli cells.

METHODSThe model of primary cultured Sertoli cells in vitro was established, which was radiated by microwave with average power density 0, 30 and 100 mW/cm(2) for five minutes. The changes of cell cycle, apoptosis and death, and intracellular Ca2+ concentration in the Sertoli cells were measured at sixth hours through Annexin V-PI double labeling and Fluo-3-AM labeling, flow cytometry combined with laser scanning confocal microscopy after microwave exposure.

RESULTSThe numbers of Sertoli cells were obviously reduced in G0-G1 and G2-M phase (62.57% +/- 3.22% and 8.25% +/- 1.75%) and increased in S phase (29.17% +/- 4.87%) compared with the control groups (79.18% +/- 0.24%, 11.17% +/- 0.50% and 9.64% +/- 0.62%) (P < 0.05 or P < 0.01), but the changes of rate of apoptosis and death and intracellular Ca2+ concentration showed no difference at 6 h after exposure to 30 mW/cm(2) microwave. There was a significant increase in the Sertoli cell counts of G0-G1 phase (87.69% +/- 1.32%), and decrease in the Sertoli cell counts of G2-M and S phase (7.41% +/- 0.60% and 4.87% +/- 0.91%) (P < 0.01). There was also a significant increase in intracellular Ca2+ concentration and rate of apoptosis and death (P < 0.05 or P < 0.01) at 6 h after exposure to 100 mW/cm(2) microwave.

CONCLUSION100 mW/cm(2) microwave radiation may cause growth inhibition and increase of apoptosis and death in the primary cultured Sertoli cells. The increase of intracellular Ca2+ concentration is one of the injury mechanisms.

Animals ; Apoptosis ; radiation effects ; Calcium ; metabolism ; Cell Cycle ; radiation effects ; Cells, Cultured ; Male ; Microwaves ; adverse effects ; Rats ; Rats, Wistar ; Sertoli Cells ; metabolism ; pathology ; radiation effects

AIMTo study the development of changes for signaling molecules related to Raf/MEK/ERK pathway in hippocampus of rats after electromagnetic radiation, and investigate the mechanisms of radiation injury.

METHODSRats were exposed to X-HPM, S-HPM and EMP radiation source respectively, and animal model of electromagnetic radiation was established. Western blot was used to detect the expression of Raf-1, phosphorylated Raf-1 and phospholylated ERK.

RESULTSThe expression of Raf-1 down-regulated during 6 h-14 d after radiation, most significantly at 7 d, and recovered at 28 d. There was no significant difference between the radiation groups. The expression of phosphorylated Raf-1 and phosphorylated ERK both up-regulated at 6 h and 7 d after radiation, more significantly at 6 h, and the two microwave groups were more serious for phosphorylated ERK. During 6 h-14 d after S-HPM radiation, the expression of phosphorylated Raf-1 increased continuously, but phosphorylated ERK changed wavily, 6 h and 7 d were expression peak.

CONCLUSIONRaf/MEK/ERK signaling pathway participates in the hippocampus injury induced by electromagnetic radiation. The excessive activation of ERK pathway may result in the apoptosis and death of neurons, which is the important mechanism of recognition disfunction caused by electromagnetic radiation.

Animals ; Apoptosis ; Electromagnetic Radiation ; Extracellular Signal-Regulated MAP Kinases ; metabolism ; Hippocampus ; metabolism ; physiopathology ; radiation effects ; MAP Kinase Kinase Kinases ; metabolism ; MAP Kinase Signaling System ; radiation effects ; Male ; Phosphorylation ; Proto-Oncogene Proteins c-raf ; metabolism ; Random Allocation ; Rats ; Rats, Wistar

BACKGROUND AND PURPOSE: The aim of this study was to identify the clinical characteristics and potential mechanisms relevant to pathological proteins in Parkinson's disease (PD) patients who experience fatigue. METHODS: PD patients (n=102) were evaluated using a fatigue severity scale and scales for motor and nonmotor symptoms. The levels of three pathological proteins-α-synuclein oligomer, β-amyloid (Aβ)(1-42), and tau-were measured in 102 cerebrospinal fluid (CSF) samples from these PD patients. Linear regression analyses were performed between fatigue score and the CSF levels of the above-listed pathological proteins in PD patients. RESULTS: The frequency of fatigue in the PD patients was 62.75%. The fatigue group had worse motor symptoms and anxiety, depression, and autonomic dysfunction. The CSF level of α-synuclein oligomer was higher and that of Aβ1-42 was lower in the fatigue group than in the non-fatigue group. In multiple linear regression analyses, fatigue severity was significantly and positively correlated with the α-synuclein oligomer level in the CSF of PD patients, after adjusting for confounders. CONCLUSIONS: PD patients experience a high frequency of fatigue. PD patients with fatigue have worse motor and part nonmotor symptoms. Fatigue in PD patients is associated with an increased α-synuclein oligomer level in the CSF.
Anxiety ; Cerebrospinal Fluid ; Depression ; Fatigue* ; Humans ; Linear Models ; Parkinson Disease* ; Weights and Measures

OBJECTIVETo summarize the reasons for bile duct injury (BDI) after laparoscopic cholecystectomy (LC), and to determine the effect of multiple treatment after BDI.

METHODSA retrospective cohort study was performed. The medical records of 110 patients diagnosed with BDI after LC from October 1993 to November 2007, in ten large hospitals in Guangdong of China, were reviewed.

RESULTSAmong 110 patients with BDI, 58 cases (52.7%) were local patients, whereas 52 cases (47.3%) were transferred from outside hospitals. Reasons for BDI following LC were: (1) Lack of experience of the LC operator (48.2%); (2) LC performed during acute cholecystitis (20.0%); (3) The structure of Calot triangle was unclear (15.5%); (4) Variable anatomical position (11.8%); (5) Intra-operation bleeding (4.5%). The commonest sites of injury were the choledochus and common hepatic duct (76.4%). Following BDI, endoscopic stenting or operative repair was performed in 106 patients. The overall success rate was 95.3% (101/106), with a mortality rate was 0.9% (1/106). Cholangitis occurred in 3.8% (4/106) cases. Choledocho-enterostomy operation was performed in almost 60.0% (63/106) cases, and the success rate was 93.7% (59/63). Endoscopic stenting or operative repair was performed immediately following BDI in 23.6% (25/106) patients, the success rate was 100%; and within 30 days in 63.2% (67/106) patients. Eighty-eight out of 106 patients who underwent repair were successful following the first operative procedure.

CONCLUSIONSFactors such as an un-experienced operator and unclear anatomical position were causes of BDI following LC. Early operative repair should be regarded as the treatment of choice, in patients diagnosed with BDI. Early refer to an experienced hepatobiliary operator ensures a high success rate.

Adolescent ; Adult ; Aged ; Aged, 80 and over ; Bile Ducts ; injuries ; surgery ; Cholecystectomy, Laparoscopic ; adverse effects ; Female ; Humans ; Iatrogenic Disease ; Intraoperative Complications ; diagnosis ; etiology ; surgery ; Male ; Middle Aged ; Retrospective Studies

To analyze the medication features and regularity of prescriptions of Chinese medicine in treating patients with dementia based on ancient medical records. In the article, we retrieved the ancient medical records related to the treatment of dementia (from the Han Dynasty to the late Qing period) in Chinese Medical Classics, Chinese Ancient Medical Books and digital library, and then set up a medical records normalized database. The medication features and prescription rules for dementia were analyzed by frequency statistics and association rules (Apriori algorithm, improved mutual information algorithm and complex system entropy clustering). Finally, a total of 156 prescriptions were selected, involving 123 Chinese herbs, with a total frequency of 11 747 for the herbs, and 8 core prescriptions were mined. After the association rules between the frequency and prescriptions for the treatment of dementia were determined, we found that the most commonly used herbs included Fuling (Poria), Yuanzhi (Polygalae Radix), Renshen (Ginseng Radix et Rhizoma), Shichangpu (Acori Tatarinowii Rhizoma), Gancao (Glycyrrhizae Radix et Rhizoma), Danggui (Angelicae Sinensis Radix), Maidong (Ophiopogonis Radix), Baizhu (Bletillae Rhizoma), Dihuang (Rehmanniae Radix) and Ganjiang (Zingiberis Rhizoma); the frequently-used drugs compatibility was mainly for tonifying Qi-blood, regulating Yin and Yang and inducing resuscitation. The drugs were mainly of warm nature and sweet (mild) flavor, and the channel tropism of drugs mainly distributed to the heart, liver, spleen and kidney. The core prescriptions were composed of Renshen (Ginseng Radix et Rhizoma), Fuling (Poria), Yuanzhi (Polygalae Radix), Shichangpu (Acori Tatarinowii Rhizoma), and Baizhu(Bletillae Rhizoma). In conclusion, high frequency herbs and core prescriptions reflect the prescriptions by ancient physicians mainly focus on Qi-replenishing, spleen-invigorating and heart-nourishing, but also reflect the prescription rules of nourishing Yin, enriching blood, eliminating phlegm and warming Yang for the treatment of dementia. The medication features and prescription rules for the treatment of dementia obtained by association rules are useful to guide the clinical practice of Chinese medicine in treatment of dementia.

[Abstrca t] Objective BRCA 1 ( breast cancer susceptibility gene 1) and RAP80 ( receptor-associated protein 80) play key roles in predicting chemosensitivity of platinum and taxanes .A randomized trial was carried out to compare non-selected cisplatin-based chemotherapy with therapy customized according to BRCA1 and RAP80 expression.Methods Advanced stage NSCLC patients whose tumor specimen was sufficient for molecular analysis were randomized (1∶3) to the control or experimental arm.Patients in the control arm received docetaxel/cisplatin; in the experimental arm , patients with low RAP 80 expression received gemcitabine/cisplatin ( Arm 1 ) , those with intermediate/high RAP 80 expression and low/intermediate BRCA 1expression received docetaxel/cisplatin ( Arm 2 ) , and those with intermediate/high RAP80 expression and high BRCA1 expression received docetaxel alone (Arm 3).The primary end point was progression-free survival (PFS).Results 226 patients were screened and 124 were randomized in this trial.ORR in the four subgroups was 22.6%, 48.4%, 30.3%and 19.2%, respectively (P=0.08);PFS was 4.74, 5.59, 3.78 and 2.73 months, respectively (P=0.55); and OS was 10.82, 14.44, 10.86 and 10.86 months, respectively (P=0.84).The common adverse effects included neutropenia , nausea, anemia and fatigue.Conclusions No statistically significant difference of ORR , PFS or OS is observed in the experimental arms compared with the control arm .Patients with low RAP 80 mRNA levels have a trend of better survival and higher response rate to gemcitabine /cisplatin chemotherapy .