Humans ; Pneumothorax ; therapy ; Silicosis ; therapy

ObjectiveTo evaluate the feasibility of endoscopic thyroid adenoma excision. Methods Dogs were used to practice endoscopic thyroid surgery under anesthesia. On the basis of animal experiment, endoscopic technique was introduced into dissection of follicular nodule of the thyroid lobe. One male and 11 females, aging between 23～52, underwent endoscopic enucleation of thyroid tumors from March 2002 to October 2002. Results The procedure was successful in 11 cases with 1 case converted to open surgery. The average time of operation was 70*!min, and intraoperative blood loss was 5～20*!ml. The patients had minimal pain. The cosmetic result was excellent. The incisions were completely hidden even with open necked skirt. Conclusions The cosmetic result of endoscopic thyroidectomy is satisfactory.

Objective To observe whether recent sexual intercourse might cause microscopic hematuria, and investigate the cause of hematuria. Methods Eighty healthy volunteers (40 men and 40 women) consented to have intercourse with their married couples and provide samples of urine for testing before intercourse and the first day morning, noon, evening and the second day morning after intercourse. After appropriate instruction, volunteers tested their own urine for the presence of blood using standard dipsticks. Any volunteer with hematuria after intercourse was offered a comprehensive hematuria assessment and followed-up for two years. Results None of the volunteers had positive hematuria before sexual intercourse. 9 of the 40 women, but no men, had positive hematuria at the first day morning after intercourse, and 3 of the nine patients with hematuria still had positive hematuria at the noon of the first day. Five women of 9 patients with hematuria accepted two years follow-up and no abnormal was identified. Conclusion It suggested that recent sexual intercourse was a cause of asymptomatic microscopic hematuria in women, and a history of recent sexual intercourse should be considered when assessing the clinical significance of microscopic hematuria in women.

Objective To investigate the effect of purified haemadipsa yanyuanensis injection on promoting intracerebral hematoma in rats and its possible mechanism.Methods We set up the experimental intracerebral hemorrhage (ICH) model in rats by stereotaxically injecting quantitative collagenase into their left caudate nucleuses.The effects of haemadipsa yanyuannesis injection on hematoma volume,neurological function recovery,brain water content(BWC),as well as histopathological changes were observed. BWC was calculated by weighing method,local capillaries were observed by micrangium perfusion.Results The intracerebral hematoma of the rats was reduced significantly( P

Objective To observe the effect and safety of buflomedil hydrochloride injection to intra cerebral hemorrhage in rats. Methods We established the experimental intracerebral hemorrhage (ICH) model in rats by stereotactic injecting quantitative collagenase into their left caudate nucleuses.The effects of buflomedil hydrochloride injection on hematoma volume,the score of neurological function deficit signs, as well as histopathological changes were observed. Local capillaries were observed by micrangium perfusion.Results 5 days after buflomedil hydrochloride injection might alleviate Wister rats' neurological function deficit signs, 86% rats from Grade Ⅲ to Grade Ⅰ, 14% rats from Grade Ⅲ to Grade 0( P

Objective To study the effects of hirudo extract liquor(HEL) on the expressions of HSP70 and TGF?-1 in intracerebral perihematoma tissues of rats.Methods We established the experimental ICH models in Wistar rats by stereotaxical injecting quantitative collagenase(0.7 U collagenaseⅦ) into their left caudate nuclei.The rats continued to be treated with HEL(treatment group) or normal saline(control group) through intravenous injection by vena caudalis and the scores of neurologic impairment in two groups were evaluated every day.The slices of these samples at 3rd,6th and 10th day were stained by immunohistochemistry and the positive cells of HSP70 and TGF?-1 were counted by image analysis system,respectively.Results The scores of neurologic impairment in two groups were remarkably reduced with time going((P

Objective To evaluate the feasibility and effect of the treatment of hematopathy by laparoscopy plus small incision splenectomy. Methods Dissection and separation of the ligaments of the spleen with laparoscopy first. And then made a small abdominal incision to ligate and divid the pedicle of spleen to finish splenectomy. Sixteen cases of idiopathic thrombocytopenic purpura(ITP) and 4 cases of heriditary spherocytosis(HS), who were treated by medication but no effect or recurrence, were treated by this procedure. Results All the patients recovered smoothly without infection of the wound ,without fluid collection in the spleen fossa,and without great intraoperative blood loss.The operating time was 1.5～2.5h(average 2.2h), intraoperative blood loss was 30～85ml(average 65ml).Hospital stay was 4～7d( average 6d). No recurrence was found during the follow-up for 0.5 to 2.5 years in this series. Conclusions Laparoscopy plus small incision splenectomy in the treatment of some hematopathy has many advantages,such as less trauma, safety, effective and quick recovery.

Objective To explore the changes and clinical significances of serum vascular endothelial growth factor (VEGF) and endostatin concentrations for early detection of lung cancer in elderly long-term smokers. Methods Serum VEGF and endostatin concentrations were determined in 52 elderly long-term smokers and 20 elderly non-smokers by enzyme linked immunoabsent assay (ELISA) or competitive enzyme immunoassay. The 52 elderly long-term smokers were divided into lung cancer group (n = 32) and non-lung cancer group (n = 20). Results The concentration of serum VEGF was markedly higher in lung cancer group [(15. 7±8. 0) ng/L] than in non-lung cancer group and normal control group (t= 13. 681, t= 9. 372, respectively, both P＜0. 01). And the level of serum VEGF was significantly higher in non-lung cancer group than in normal control group (t=5. 250, P＜0. 05). The level of serum endostatin was significantly higher in elderly long-term smokers with or without lung cancer than in normal control group (t=5. 332, t=3. 700, respectively, P＜0. 01 and P＜0.05). But there was no statistic difference between non-lung cancer group and lung cancer group (t = 0. 814, P＞ 0.05 ). Notably, the endostatin/VEGF ratio was lower in lung cancer group than in non-lung cancer group and normal control group (t= 6. 270, t= 7. 138, respectively, both P＜0.01), while there was no significant difference between non-lung cancer group and normal control group (t= 1. 022, P＞0.05). Conclusions These findings suggest that the periodic detection of serum VEGF and endostatin and endostatin/VEGF ratio, especially endostatin/VEGF ratio, is of clinical importance and can be used as an early diagnostic marker of lung cancer in elderly long-term smokers.

Objective To study the regional cerebral blood flow (rCBF) and correlated factors in patients with hepatolenticular degeneration (HLD).Methods The rCBF of lentiform nucleus,thalamus and other sites in 14 patients with HLD of cerebral type (cerebral type group) and 10 patients with HLD of non-cerebral type (non-cerebral type group) were determined by magnetic resonance-perfusion imaging technology,meanwhile 13 healthy volunteers were selected as control group,and calculated the relative regional cerebral blood flow (rrCBF) for avoiding perfusion time lag.The correlation between the clinical symptom scores,the content of urinary copper,duration and rrCBF in HLD patients were evaluated.Results The rrCBF of cerebral type group in the left and right frontal lobe,temporal lobe,lentiform nucleus,caudate nucleus,thalamus,midbrain,pons and the left hippocampus,cerebellar cortex,dentate nucleus were lower than those of control group (1.91 ±0.35 vs.2.44 ±0.64,1.80 ±0.30 vs.2.37 ±0.65,1.37 ±0.35 vs.2.14 ±0.91,1.58 ±0.52 vs.2.39 ±0.99,1.61 ±0.38 vs.2.59 ±0.74,1.52 ±0.64 vs.2.63 ±0.73,1.88 ±0.32 vs.2.61 ±0.67,1.70 ±0.40 vs.2.35 ±0.50,1.48 ±0.13 vs.2.01 ±0.59,1.46 ±0.38 vs.2.38 ±0.99,1.47 ±0.55 vs.2.02 ±0.72,1.27 ±0.48 vs.1.91 ±0.51,1.24 ±0.38 vs.1.47 ±0.29,1.25 ±0.39 vs.1.53 ±0.37,1.74 ±0.27 vs.2.40 ±0.89,1.79 ±0.50 vs.2.22 ±0.66,2.15 ±0.41 vs.2.64 ± 0.61),and there were significant differences (P ＜ 0.05 or ＜ 0.01).There were no significant differences in the rrCBF of the parietal and occipital lobe,etc between cerebral type group and control group (P ＞ 0.05).The rrCBF of cerebral type group in the left and right lentiform nucleus were lower than those of non-cerebral type group (1.61 ± 0.38 vs.1.94 ± 0.58,1.52 ± 0.64 vs.1.99 ± 0.59),and there were significant differences (P ＜ 0.05).The clinical symptom scores were positively correlated with the rrCBF of the left and right lentiform nucleus in 24 patients with HLD (r =-0.792 and-0.764,P ＜ 0.01),the content of urinary copper and duration had no correlation with the rrCBF of the left and right lentiform nucleus(P ＞ 0.05).Conclusions The rCBF of cerebral type and non-cerebral type HLD is significantly reduced,cerebral type patients have lower rCBF than non-cerebral type patients.The rCBF is correlated with the clinical symptom scores.

Objective To investigate the effect of lycopene (Lyc) on H9c2 cell apoptosis induced by angiotensin Ⅱ (Ang Ⅱ).Methods Using Ang Ⅱ (10 μmol/L) to stimulate H9c2 cells,we observed the protective effect of Lyc on H9c2 cells apoptosis.The H9c2 cells viability induced by different consideration of Lyc or Ang Ⅱ or both was detected by CCK8 assay.The expression levels of Bax and Bcl-2 in H9c2 cells were determined by real-time quantitative reverse transcription polymerase chain reaction (RT-PCR).Western blot was conducted to detect the protein expressions of Bax,Caspase 3,Caspase 9 and Bcl-2 in H9c2 cells.The apoptotic ratio of H9c2 cells was observed by TUNEL assay.Results Compared with control group,Ang Ⅱ could decrease the viability of H9c2 cells to (92.87±4.37)％.The result of RT-PCR showed that Ang Ⅱ decreased the expression level of Bcl-2,and Bax level was increased under the stimulation of Ang Ⅱ (P＜0.05),while the expression level of Bcl-2 was increased and Bax level was decreased under the co-stimulation of Ang Ⅱ and Lyc in a concentration dependent manner,which indicated that Lyc ameliorated the apoptosis of H9c2 cells.The result of western blot showed that the protein expressions of Bax,Caspase 3 and Caspase 9 were increased,but Bcl-2 was decreased after the stimulation of Ang Ⅱ (P＜0.05).While these phenomenon reversed apparently under the co stimulation of Ang Ⅱ and Lyc.A large number of apoptotic cells were observed under the stimulation of Ang Ⅱ through TUNEL assay.But the number of apoptotic cells reduced significantly under the co-stimulation of Lyc and Ang Ⅱ (P ＜0.05).Conclusions Lyc ameliorates the H9c2 cell apoptosis induced by Ang Ⅱ,which indicates that Lyc may have an important role in the treatment of various cardiovascular diseases.