Adolescent ; Adult ; Aged ; Cholesteatoma, Middle Ear ; congenital ; pathology ; Female ; Humans ; Male ; Melanocytes ; Middle Aged ; Young Adult

Animals ; Animals, Newborn ; Cerebral Cortex ; cytology ; metabolism ; Disease Models, Animal ; Female ; Fluorescent Antibody Technique ; Hypoxia-Ischemia, Brain ; metabolism ; Male ; Phosphorylation ; Rats ; Rats, Sprague-Dawley ; Receptors, N-Methyl-D-Aspartate ; metabolism

Objective To make a further understanding of mammographic features of simple cyst of the breast (SCB).Methods Molybdenum target radiographic signs in 39 cases with SCB proved pathologically and were retrospectively analyzed. Results Of the 56 SCB in 39 cases, 23 were diagnosed rightly as SCB, 10 as fibroadenoma, 2 as cancer and the remaining 4 were undefined. The diagnostic accuracy and misdiagnosis were 59.0% and 41.0% respectively. Radiograph showed round in 12, ovoid in 38, mild lobed in 4 and comet tail form in 2. The borders of cyst were distinct and sharp in 26, distinct partly and indistinct partly in 27,indistinct completely in 3. The density was homogeneous in 54 with calcifications in 2. Of the 56 SCB, the length axes of cyst were upright to chest wall in 20 and towards nipple in 18. The cysts could be transformed with pressure in 4.Conclusion Careful analysis of radiographic features of SCB is helpful for diagnosing accurately this disease.

0.05),but the 3-year recurrent rates were significantly different(P

Animals ; Animals, Newborn ; Astragalus Plant ; Doxorubicin ; adverse effects ; Drugs, Chinese Herbal ; pharmacology ; Mice ; Mice, Inbred BALB C ; Myocardium ; pathology ; ultrastructure

OBJECTIVETo construct a eukaryotic expression plasmid pcDNA3.1(-)-Humanin.

METHODSThe recombinant plasmid pGEMEX-1-Humanin was digested with restriction endonucleases BamH I and Hind III and the Humanin gene fragments, about 100 bp length, were obtained. Then the Humanin gene fragments were inserted into eukaryotic expression vector pcDNA3.1(-) and the recombinant plasmids pcDNA3.1(-)-Humanin were identified by sequencing.

RESULTSRecombinant plasmid DNA successfully produced a band which had the same size as that of the Humanin positive control. The sequence of recombinant plasmids accorded with the Humnain gene sequence.

CONCLUSIONSA eukaryotic expression plasmid of Humanin was successfully constructed.

Base Sequence ; Cloning, Molecular ; methods ; Escherichia coli ; genetics ; metabolism ; Humans ; Intracellular Signaling Peptides and Proteins ; Molecular Sequence Data ; Molecular Weight ; Plasmids ; genetics ; Protein Engineering ; methods ; Proteins ; chemistry ; genetics ; metabolism ; Recombinant Proteins ; biosynthesis ; chemistry

OBJECTIVETo investigate the clinicopathological features of testicular malignant Leydig cell tumor (TMLCT) and improve the non-invasive diagnosis of the disease.

METHODSWe retrospectively analyzed the clinicopathological data on a case of TMLCT, detected the circulating tumor cells (CTC) in the peripheral venous blood, and reviewed the related literature.

RESULTSThe patient, a 47-year-old male, underwent radical orchidoepididymectomy under general anesthesia. Postoperative pathology confirmed the lesion to be TMLCT, which was mainly composed of Leydig cells and suspected with vessel carcinoma embolus. Immunohistochemistry showed the tumor cells to be positive for α-inhibin, Ki67, CD30, vimentin, EMA, and PLAP, but negative for CK, CK7, S100, CD10, SMA, Des, AFP, hCG, CEA, CK19, CD117, Oct-4, LCA, CD20, Pax-5, CD3, and CD43. Two CTCs were detected in the peripheral venous blood. The patient received 3 courses of chemotherapy for retroperitoneal multiple lymph nodes metastasis post-operatively. Subsequent CT imaging manifested no obvious reduction of the retroperitoneal lymph nodes and consequently the patient again underwent retroperitoneal lymphadenectomy and cryoablation. At 8 months after treatment, CT examination revealed notably enlarged retroperitoneal lymph nodes with the right adrenal gland evidently invaded.

CONCLUSIONTMLCT is an extremely rare sex-gonad stromal tumor with high malignancy and poor prognosis, and CTCs may be used for its early diagnosis and prognostic prediction.

Biomarkers, Tumor ; metabolism ; Humans ; Immunohistochemistry ; Leydig Cell Tumor ; drug therapy ; pathology ; surgery ; Lymph Node Excision ; Lymphatic Metastasis ; Male ; Middle Aged ; Neoplastic Cells, Circulating ; Prognosis ; Retrospective Studies ; Sex Cord-Gonadal Stromal Tumors ; drug therapy ; pathology ; surgery ; Testicular Neoplasms ; drug therapy ; pathology ; surgery

Poly(ADP-ribose) polymerase-1 (PARP-1) has emerged as a promising anticancer drug target due to its key role in the DNA repair process. It can polymerize ADP-ribose units on its substrate proteins which are involved in the regulation of DNA repair. In this work, a novel series of para-substituted 1-benzyl-quinazoline-2, 4 (1H, 3H)-diones was designed and synthesized, and the inhibitory activities against PARP-1 of compounds 7a-7e, 8a-8f, 9a-9c and 10a-10c were evaluated. Of all the tested compounds, nine compounds displayed inhibitory activities with IC50 values ranging from 4.6 to 39.2 micromol x L(-1). In order to predict the binding modes of the potent molecules, molecular docking was performed using CDOCKER algorithm, and that will facilitate to further develop more potent PARP-1 inhibitors with a quinazolinedione scaffold.
Antineoplastic Agents ; chemical synthesis ; chemistry ; pharmacology ; Drug Design ; Enzyme Inhibitors ; chemical synthesis ; chemistry ; pharmacology ; Molecular Docking Simulation ; Molecular Structure ; Poly (ADP-Ribose) Polymerase-1 ; Poly(ADP-ribose) Polymerases ; Quinazolinones ; chemical synthesis ; chemistry ; pharmacology ; Structure-Activity Relationship

This paper is discussed about course system construction of Microbiology, teaching method, in- struction means and experimental teaching mode. Teaching practice indicated that reform the pattern of Mi- crobiology educational mode can stimulate students’ interest in studying the course, cultivate their inde- pendent ability to solve questions, develop their creative thinking. It is an important way to train high-caliber talents.

AIM To observe the long-term toxicities of reteplase(Ret). METHODS Rat was administrated by injection of vein on 14 consecutive days to macaca fasicular. RESULTS Ret 8.0 MIU?kg -1 to macaca fasicular did not show any toxicity. In 25.0 MIU?kg -1 and 80.0 MIU?kg -1 of doses, RBC, HGB and HCT of blood have significantly decreased. Feces of hidden blood test also showed positive response in some animals, meanwhile, Ret could reduce the content of plasma total protein. But these changes could have recovery in restoration period. In addition, in 8.0?25.0?80.0 MIU?kg -1 doses, Ret could significantly lengthen bleeding time and clotting time. The obvious toxic changes of coefficient and pathology in Ret 8.0?25.0?80.0 MIU?kg -1 groups were not found. CONCLUSION 8.0 MIU?kg -1 is a safety dosage by injection of vein. 25.0,80.0 MIU?kg -1 doses have certain toxic actions, such as anemia and bleeding, but these toxic effects were reversible.