Calcitonin ; blood ; Fluorine ; adverse effects ; Humans ; Occupational Exposure ; adverse effects ; Osteocalcin ; blood

Biopsy, Needle ; Humans ; Male ; Prostate ; pathology ; surgery ; Prostatic Neoplasms ; pathology ; surgery ; Transurethral Resection of Prostate

Aged ; Humans ; Lymphoma, T-Cell, Cutaneous ; pathology ; Skin Neoplasms ; pathology

Objective The entorhino-hippocampal pathway is the major excitatory input from neurons of the entorhinal cortex on both ipsilateral and contralateral hippocampus/dentate gyrus. This fiber tract consists of the alvear path, the perforant path and a crossed commissural projection. In this study, the histogenesis and development of the various subsets of the entorhino-hippocampal projection have been investigated. Methods DiI, DiO and fast blue tracing as well as anti-calretinin immunocytochemistry were carried out with prenatal and postnatal rats at different ages. Results The alvear path and the commissural pathway started to develop as early as embryonic day (E) 16, while the first perforant afferents reached the stratum lacunosum-moleculare of the hippocampus at E17 and the outer molecular layer of dentate gyrus at postnatal day (P) 2, respectively. Retrograde tracing with DiI identified entorhinal neurons in layer II to IV as the origin of entorhino-hippocampal pathway. Furthermore, anti-calretinin immunocytochemistry revealed transitory Cajal-Retzius (CR) cells in the stratum lacunosum-moleculare of the hippocampus from as early as E16. DiI labeling of entorhinal cortex fibers and combined calretinin-immunocytochemistry showed a close association between CR cells and entorhinal afferents. Conclusion The subsets of entorhino-hippocampal pathway appear in the developmental hippocampus during E16-P2. The temporal and spatial relationship between CR cell and perforant afferent suggests the role of this cell type as a guiding cue for entorhinal afferents at early cortical development.

Adult ; Humans ; Male ; Palate ; surgery ; Postoperative Complications ; Pulmonary Embolism ; etiology ; Snoring ; surgery ; Uvula ; surgery

Cilia ; pathology ; Endometrial Hyperplasia ; complications ; pathology ; Endometrial Neoplasms ; complications ; pathology ; Endometrium ; pathology ; Fallopian Tubes ; pathology ; Female ; Humans ; Metaplasia ; classification ; complications ; pathology

Biomedical Research ; Histones ; Humans ; Neoplasms

Objective To investigate the role of activated extracellular signal-regulated kinase 1/2 (ERK1/2) in spinal cord in the development of cystic pain in rabbit. Methods We observed the relationship between the activation of ERK1/2 in spinal cord and nociceptive behaviors, as well as the effect of U0126, a mitogen-activated protein kinase (MEK, upstream protein of ERK1/2) inhibitor, on cystic pain in rabbits by behavioral test, immunohistochemistry and western blot analysis. Results After injecting 0.5 ml formalin into gallbladder, the behaviors such as grasping of the cheek and licking of the abdomen increased in 30 min, with a significant increase in pERK1/2 expression in the spinal cord, as well as the pERK1/2 immunoreactive cells located in laminae V-VII and X of the dorsal horn and ventral horn of T6 spinal cord. Administration of U0126 (100 - 400 mu g/kg body weight, i.v., 10 min before instillation of formalin) could attenuated nociceptive behaviors dose-dependently, but could not restrain the nociceptive behaviors completely even at the maximal efficient dose of 400 mu g/kg body weight. Conclusion Activated ERK1/2 in the spinal cord at least partly participates in the development of acute inflammatory cystic pain induced by formalin in rabbits.

OBJECTIVETo explore the effect and possible cell signal transduction mechanism of active components (alkaloids and glucosides) of Buyang Huanwu Decoction (BHD) on the vascular adhesion molecule (VAM) expression induced by thrombin (Thr).

METHODS(1) Endothelial cells (ECV-304) were cultured in vitro and stimulated by Thr, then cultured in media containing BHD whole recipe (BHDw), its alkaloids (BHDa) or glycosides (BHDg), respectively. The expressions of E-selectin, CD31, CD54, and protein Kinase Calpha PKCa) were detected by immunocytochemical method. (2) Cultured ECV-304 cells were treated with Thr, Thr + 1-(5-isoquinolinesulfonyl)-2-mythylpiperazine dihydrochloride (H7), phorbol myristate acetate (PMA), PMA + H7, Thr + cathepsin-6 (CATG) as well as Thr plus BHDw, BHDa, and BHDg, respectively after then, changes of PKCalpha, phospho-p38 mitogen-activated protein kinase (p-p38MAPK), phospho-extracellular signal regulated kinase (p-ERK) and nuclear factor-kappaB (NF-kappaB) expressions were observed.

RESULTS(1) Expressions of PECAM-1, ICAM-1 and E-selectin in ECV-304 cells were significantly enhanced after thrombin stimulation (P < 0.05). When compared with the thrombin group, the three expressions were lower in the BHDw treated group (P < 0.05); while in groups treated with BHDa and BHDg, only expressions of PECAM-1 and ICAM-1 were lower (P < 0.05), but no obvious difference in E-selectin was shown. (2) Expression of endothelial PKCalpha increased after thrombin stimulation (P < 0.01), which could be enhanced by PMA (PKC activator, P < 0.01); but inhibited by PMA + H7 (PKC inhibitor), CATG (PAR-1 inhibitor, P < 0.05) as well as by BHDw, BHDa and BHDg (P < 0.05). (3) Expressions of p-p38 MAPK and p-ERK in ECV-304 cells showed no remarkable change after thrombin stimulation, or after reacted with PMA, H7, CATG, BHDw, BHDa and BHDg. (4) Similar to that of p-p38MAPK and p-ERK, NF-kappaB was unchanged in all the reactions.

CONCLUSIONSBHD could down-regulate the increasing of VAM expression induced by thrombin in VECs; BHDa and BHDg might be the active components in the recipe. The effect of thrombin is mainly mediated through activation of PKC; while p-p38MAPK, ERK or NF-kappaB are not the chief signal transduction pathways. And BHD and its effective components may antagonize the thrombin activation on VECs through inhibiting the activation of PKCalpha.

Cell Adhesion Molecules ; metabolism ; Cell Line ; Drugs, Chinese Herbal ; pharmacology ; E-Selectin ; metabolism ; Endothelial Cells ; drug effects ; metabolism ; Extracellular Signal-Regulated MAP Kinases ; metabolism ; Humans ; Intercellular Adhesion Molecule-1 ; metabolism ; NF-kappa B ; metabolism ; Platelet Endothelial Cell Adhesion Molecule-1 ; metabolism ; Protein Kinase C-alpha ; metabolism ; Signal Transduction ; Thrombin ; pharmacology ; p38 Mitogen-Activated Protein Kinases ; metabolism

Biopsy ; Dissection ; Gastric Mucosa ; pathology ; surgery ; Gastroscopy ; methods ; Humans ; Neoplasm Invasiveness ; Neoplasm Staging ; Neoplastic Cells, Circulating ; Stomach Neoplasms ; pathology ; surgery ; Stomach Ulcer ; pathology