Male Wistar rats were used to investigate the ultrastructure of the fibroblasts. The animals were sacrified at several time intervals after the collodion tubules were embedded subscutaneously on the backs, and the materials taken from the connective tissues around the collodion tubules were observed by light and electron microscopy. Six basic types of fibroblasts (little-differentiated fibroblast, young fibroblast, collagenoblast, myofibroblast, fibroclast and fibrocyte) were studied ultrastructurally. In each of its three phases (prophase, metaphase and telophase), the collagenoblast showed different functional conditions. The fibroclasts contain two subtypes, the phagocytosis and the lysosome subtypes, the former phagocytosing the collagen fibrils with a characteristic crossing banding and the latter phagocytosing the collagen fibrils which had been cleaved by the collagenase. The fibrocytes consist probably of two subtypes, the resting and aging subtypes. The observations demonstrate that the fibroblasts were derived from undifferentiated cells around capillaries and the little-differentiated fibroblasts are the youngest cell type of all fibroblasts. The collagenoblasts and fibroclasts are the main cells responsible for collagen biosynthesis and collagen degradation respectively. In the present paper a new concept, the "The Fibroblast System", has been proposed, which includes the six basic types of fibroblasts and there are not only structural but also functional relationships among them.

Objective To observe the effect of herbal plaster at acupoints for the excess syndrome of primary dysmenorrhea and its influence on prostaglandins.Methods The patients with of primary dysmenorrhea excess syndrome were randomized into treatment group(33 cases) and control group(31 cases).The former was treated by herbal plaster at acupoints while the latter treated by orally taking Tianqi Tongjing Capsule(Radix Notoginseng for Capsule Dysmenorrhea).Before and after the treatment,the pain scores and the accompanied symptoms were observed;and PGF2? and PGE2 of peripheral blood and renal and hepatic functions were detected.Results After treatment,the pain scores of both groups were significantly decreased(P

The antidepressant effects of the N-Isosuccinyl-dichlorocinnamo-ylamide ( 7903 ) , an analogue of piperine, upon 5 animal models were studied. The 7903 was found to have antidepressant effects on the models with doses less than TD50. The 7903 with the single dose, which did not increase the spontaneous motor activity of animals, could significantly decrease the duration of immobility of mice and rats in the forced-swimming test and that of mice in the tail-suspension test. The duration of the longest permanent immobility indaced by cornea electro-stimulation in mice was also decreased with the chronic administration ( 2 weeks ) of the 7903. And the hypothermia induced by reserpine could be antagonized by the 7903.

Objective To study the utility of brainstem auditory evoked potentials in the evaluation of children with cerebral palsy. Methods In a group of 86 cases of cerebral palsy aged 6～30 months and a control group of 60 normal children, the brainstem auditory evoked potentials were recorded and subsequently analyzed and evaluated correlatively with asphyxia during birth and their functional impairments (including the visual, speech impairment, epilepsy and eating dysfunction). Results The latencies of waves Ⅲ?Ⅴ,the interpeak latencies(IPLs) of waves Ⅲ-Ⅴof BAEP in children with cerebral palsy were often abnormal( P

The influences of the N -Isosuccinyl - dichloro - cinnamoylamide (7903) on the NA and 5 -HT systems in the brain were studied. Acute administration of 7903 could significantly enhance the level of NA and 5 -HT in mice brain and cortex of rats, and the level of 5 -HT in the hyporthalamus of rats was tending to be enhanced. However, chronic administration of 7903 (two weeks ) could decrease the level of NA and the ra-tio of 5-HIAA/5-HT in the cortex of rats; Chronic administration of 7903 could also decrease the turnover of NA and 5- HT in mice brain, but had no effects on the special binding of ? - receptor to 3-H - DHA and that of 5 -HT receptor to H - ketanserine in the cortex of rats.

To report one case of postoperative reconstruction of facial squamous cell carcinoma by cervicotho-racic flap and temporal flap in our hospital. Clinical symptoms of the patient are facial mass and tumor ulceration.The patient had chronic bronchitis. On admission, the right side of the patient face was found to have a mass of about 6. 5 cm X 5. 0 cm, and the middle is about 2. 5 cm X 2. 5 cm X 1. 0cm ulcer, the neck has no swollen lymphnodes by palpation. After imaging and pathological examination,the patient was diagnosed as right facial squamouscell carcinoma and chronic bronchitis.
Carcinoma, Squamous Cell ; surgery ; Face ; pathology ; surgery ; Humans ; Postoperative Period ; Reconstructive Surgical Procedures ; Surgical Flaps

Objective: To evaluate the effect of Chinese herbal medicine on Chronic Periodontitid.(CP).Method:34 patients with CP were randomly divided into two groups.The herbal medicine was given to the experiment group for two months,while the other group was set as a blank control.The Periodontitid and laboratory test indexes such as PLP,PPDPAL,MD and Ca P,ALP of patients were measured before and after treatment.Results: The indexes of patients in the group of Chinese herbal medicine were statistically signifi cant in contrast with the control group(P

AIM: To study the synergic antitumor effect of verapamil (VPL) and tumor necrosis factor alpha (TNF?). METHODS: In the presence of verapamil or verapami plus tumor necrosis factor, the proliferation, the expressions of c-myc and PCNA, the mean vessel density(MVD)of human hepatoma cell line(HepG 2) were studied in vivo and in vitro. RESULTS: It was demonstrated that the growth of HepG 2 was inhibited remarkably, under the presence of verapamil and TNF? simutaneously, the expressions of c-myc , PCNA and the MVD were also decreased. CONCLUSION: The calcium channel blocker can inhibit the proliferation of tumor and has a remarkable synergy with TNF?. [

BACKGROUND: How to lessen neuronal necrosis to promote recovery of nerve function after ischemic cerebral injury? Cerebral ischemic preconditioning (IP) alleviates ischemic cerebral injury caused by re-ischemia to certain extent. It has been verified that sodium ferulate can lessen the incidence of neuron apoptosis after cerebral ischemia. Whether does sodium ferulate enhance the nerve protection of IP brain to not?OBJECTIVE: To explore the protection of sodium ferulate allied with IP in cerebral ischemic-reperfusion injury.DESIGN: Randomized controlled animal experiment was designed.SETTING: Neurological Surgery Department of 2nd Affiliated Hospital of Jiangxi Medical College, Department of Physiology of Jiangxi Medical College, Institute of Urinary Surgery of Jiangxi Medical College.MATERIALS: The experiment was perforned in Laboratory Room of Neurological Surgery Department of 2nd affiliated Hospital of Jiangxi Medical College from May 2001 to April 2002, in which, 85 Wistar male rats were employed, mass weighted varied from 250-300 g.METHODS: The rats were randomized into 4 groups: ① The control without ischemia (10 rats): Vertebral artery was ligatured bilaterally and common carotid artery was not clipped bilaterally. ② The control with ischemia (25 rats): Vertebral artery was ligatured bilaterally for 48 hours and common carotid artery was clipped for 10 minutes. ③ IP group (25rats): Vertebral artery was ligatured bilaterally for 48 hours and common carotid artery was clipped for 2 minutes, and 24 hours later, the common carotid artery was clipped again for another 10 minutes. ④ Sodium ferulate allied with IP group (Allied group) (24 rats): After IP, the common carotid artery was clipped again for 30 minutes and sodium ferulate (200 mg/kg)was injected intravenously from tail. The control without ischemia was subdivided into two groups of 2 days and 7 days after reperfusion respectively (5 rats for each one). The control with ischemia, IP group and allied group were subdivided into 5 groups of 6 bours, 12 hours, 24 hours,2 days and 7 days after reperfusion successively (5 rats for each one).The rats were sacrificed to collect brains at phase spots in each group.Coronary brain slice was collected 2.2 mm posterior to the optic chiasm and the effects of allied with was observed on neuron count and apoptotic cell count in cortex and hippocampal CA1 in cerebral ischemia reperfusion.MAIN OUTCOME MEASURES: Neuron count and apoptotic cell count in cortex and hippocampal CA1.RESULTS: Totally 85 experimental rats all entered result analysis. ①Neuron count in cerebral cortex and hippocampal CA1: On the 7th day after ischemia, the counts in IP group and allied group were higher than ischemia control (268±8.5, 244±12.5, 135±5.6, P ＜ 0.01). ② Count of TUNEL positive cell in cerebral cortex and hippocampal CA1: The count in allied group was lower than that in IP group and ischemia control (12 hours:1.2±0.8, 15.5±2.1, 39.8±3.9; 24 hours: 1.8±1.6, 39.3±11.8, 191.3±19.1;2 days: 2.8±1.2, 68.3±13.6, 328.4±24.0, P ＜ 0.01), and that in IP group was lower than ischemic control (P ＜ 0.01).CONCLUSION: IP lessens apoptotic neuron count in ischemic region.Sodium ferulate allied with IP further intensifies such effect and provides the protection of ischemic reperfusion injury of brain.