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YP Zverev J Chisi 《Malawi medical journal : the journal of Medical Association of Malawi》2004,16(1):14-16
Handedness is the most important behavioural asymmetry due to its intimate association with the specialisation of the brain for language. It exists in 3 forms, namely right, left and mixed. Left-handers constitute the biggest minority group in the world and in many aspects they are in a disadvantaged position compared to right-handers. Numerous studies demonstrated association between left-handedness and different health problems ranging from learning disorders to breast cancer and decreased longevity. This paper reviews the relevant literature on the genesis of handedness and connection between handedness and health. Deviations from the “normal” pattern of braininess observed in some left-handers might contribute to developmental, cognitive and some mental disorders. However increased incidence of some of pathological conditions among sinistrals could hardly be explained by the “abnormal” pattern of braininess or by the action of a gene or genes responsible for handedness determination. Review of literature suggests that many of health problems of left-handers develop due to environmental, developmental and other mechanisms related to genesis of handedness. 相似文献
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TS RAGHU RAMAN DALJIT SINGH YP JALPOTA PK MENON 《Medical Journal Armed Forces India》1996,52(1):19-22
Of the 253 neonates admitted to a neonate intensive care unit during the period Jan 91 to Sep 93, 43 neonates died. Autopsy was done in 23 of these (53%). The mean duration of stay of the neonates in the intensive care unit prior to death was 5.6 days (range 2 hours to 10 days). Antemortem diagnoses included asphyxia neonatorum (4), meconium aspiration syndrome (2), septicemia (5), prematurity (3), birth trauma (2), congenital anomalies (2), hypoxic ischemic encephalopathy (1), and non-specific diagnosis (4). There were 6 major autopsy findings that, if known prior to death, would have altered clinical management and might have resulted in cure or prolonged survival. There were 8 additional major findings that, if known prior to death, would not have altered management There were 14 minor findings related to major diagnoses but unrelated to the primary cause of death.KEY WORDS: Autopsy, Cause of death, Perinatal mortality 相似文献
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We have recently found that antibodies to L-selectin, the homing receptor on neutrophils, are as effective as those to beta 2-integrin at blocking formyl peptide-stimulated aggregation. Therefore, we investigated the requirements for expression of L-selectin and beta 2- integrin on adjacent cells during aggregation. Fluorescence flow cytometry allowed characterization of aggregates on the basis of size and color, as well as antibody binding to these two adhesive molecules. Formyl peptide-stimulated aggregate formation was measured for individual populations fluorescently labeled red (LDS-751) or green (CD44-FITC), and interpopulation red-green cell conjugates. Blocking either the beta 2-integrin or L-selectin adhesive epitope with monoclonal antibody on individual cell populations resulted in an approximately 50% reduction in two-color aggregation as compared with that in unblocked samples. Shedding the L-selectin on a cell population by preincubation with complexes of lipopolysaccharide and its plasma membrane binding protein also decreased aggregation to a control population by approximately 50%. We examined the aggregation of neutrophils from patients genetically deficient in beta 2-integrin and clinically leukocyte adhesion deficient (LAD). LAD adhesion to normal neutrophils was dependent on the expression of L-selectin on LAD cells and beta 2-integrin on normal cells. Thus, the minimum requirement for adhesion between two mixed populations of neutrophils was that one population expressed the beta 2-integrin and the other expressed the L- selectin adhesive epitope. 相似文献
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目的观察地佐辛用于心房颤动射频消融术中的疗效。方法 2013年4月-7月随机选取心血管内科拟行心房颤动射频消融术患者45例,根据随机双盲原则分为地佐辛组(D组)、吗啡组(M组)。常规术前探视,记录患者生命体征以及术前疼痛评分、舒适度评分。两组患者于手术开始前30 min静脉分别给予地佐辛5 mg或吗啡5 mg镇痛,术中监测血压、心率、血氧饱和度、心电图和疼痛评分、舒适度评分,根据患者疼痛情况分次静脉给予对应组别用药2~3 mg,术毕记录手术时间,术后2、6、24 h随访患者,评估患者疼痛状况以及不良反应。结果两组患者在手术时间、术中疼痛评级指数、术中疼痛视觉模拟评分差异有统计学意义(P<0.05),术中及术后不良反应发生率差异无统计学意义(P>0.05)。结论地佐辛用于心房颤动射频消融术中镇痛效果优于吗啡,但仍然存在术后恶心、呕吐等不良反应,鉴于目前全身麻醉尚未能完全推行的情况下,地佐辛用于心房颤动消融术中镇痛可作为一种较理想的替代方案。 相似文献
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Tang HF Yi YH Li L Sun P Zhang SQ Zhao YP 《第二军医大学学报》2005,26(8):902-902
Two new sulfated steroidal pentaglycosides(asterosaponins),novaeguinosides Ⅰ(2) and (Ⅱ)2,along with the known regularoside B(1)were isolated from the starfish Culcita novaeguineae.Their structures were elucidated by extensive NMR techniques as well as chemical evidence. 相似文献
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Objective : To evaluate the efficacy of biliary‐enteric bypass in the palliation of malignant hilar biliary obstruction. Materials and Methods : Records of 19 patients from 1995 to 1998 were reviewed. There were 13 patients with cholangiocarcinoma and 6 patients with carcinoma of the gallbladder. Single biliary‐enteric bypass had been performed in 13 of the patients; the rest had more than one biliary‐enteric anastomosis. Results : The 30‐day mortality was 21% (4/19 patients). Bile leakage occurred in 2 patients, leading, in both, to fatality. Excluding the 30‐day mortality, the median survival of patients with carcinoma of the gallbladder and cholangiocarcinoma was 116 days (43–200) and 202 days (47–1207), respectively. The mean hospital stay was 31 days (13–59) and all patients were discharged with their symptoms relieved and a drop in bilirubin of at least two‐thirds their pre‐operative level. The late complication rate was 26.7% (4/15 patients). Conclusion : Biliary‐enteric bypass is effective in the palliation of symptoms of patients suffering from unresectable hilar biliary obstruction, although it carries considerable mortality and morbidity. Stenting, rather than surgery, should be considered for patients with unresectable gallbladder cancer. 相似文献