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1.
目的 :了解睡眠呼吸暂停综合征 (SAS)患者P50 (即血红蛋白氧饱和度 5 0 %时相应的氧分压 )是否有改变 ,探讨P50 与夜间血氧饱和度的相关性以及P50 可否预测SAS患者的病情严重程度。方法 :随机选择SAS患者 5 6例 ,其平均睡眠呼吸暂停 低通气指数 (AHI)为 (3 7 5 1± 2 0 2 1)次 h ,平均夜间血氧饱和度为 86 5 2 %± 1 91% ,清醒时的血氧饱和度为 95 2 0 %± 1 40 % ,并选择正常人 42例作为对照组进行P50 水平的测试。 11例患者经持续气道正压通气 (CPAP)治疗后重复进行测试。结果 :1 SAS患者日间P50 值为 (2 9 2 7± 1 3 1)mmHg(1mmHg=0 13 3kPa) ,对照组为 (2 7 63± 1 0 1)mmHg,二者存在显著性差异 (P <0 0 5 ) ;2 SAS患者P50 与夜间平均血氧饱和度呈明显负相关 (r=- 0 962 1,P <0 0 5 ) ;3 11例SAS患者经CPAP治疗 3个月后 ,P50 水平显著下降至 (2 7 2 7± 0 63 )mmHg,与正常对照组相比无显著性差异。结论 :1 SAS患者的氧离曲线右移 ,这可能是对组织低氧的一个保护性机制 ,以延迟肺动脉高压的形成 ,红细胞的增多及其它器官系统并发症的发生。 2 P50 能够反映SAS患者夜间低氧的严重程度 ,因而可以作为一个常规指标进行检测 相似文献
2.
探讨老年原发性高血压伴高胆固醇血症者抗高血压同时行调脂治疗对内皮素 (ET)及血小板聚集率(PAG)的影响。方法 86例老年原发性高血压伴高胆固醇血症者随机分为治疗组 43例和对照组 43例 ,在行调脂饮食及降压治疗的同时观察用氟伐他丁 (2 0~ 40mg/d)前及 12周后的血脂、ET和PAG的变化。结果 治疗组经 12周调脂治疗后血胆固醇下降了 19% (P <0 .0 0 1) ,甘油三酯下降了 9% (P <0 .0 1) ,低密度脂蛋白胆固醇降低了18% (P <0 .0 0 1) ,高密度脂蛋白胆固醇上升了 5 % ;ET显著下降 (P <0 .0 1) ,PAG亦显著下降 (P <0 .0 5 ) ;而对照组血脂水平、ET、PAG虽有降低 ,但无显著性差异。结论 老年原发性高血压伴高脂血症者降压治疗同时使用氟伐他丁不仅可降低血脂 ,同时可改善ET及血小板聚集功能。 相似文献
3.
目的 探讨慢性阻塞性肺疾病 (COPD)患者夜间睡眠结构及血氧饱和度 (SaO2 )的变化 ,以期为临床提供诊疗依据。方法 应用多导睡眠记录仪进行睡眠监测 ,测定项目共 7个参数 ,并对COPD组与对照组 (健康人 )进行比较。结果 COPD组Ⅰ期、Ⅱ期睡眠时间与对照组比较差异无显著性 (P >0 .0 5 ) ,但Ⅲ期、Ⅳ期时间在睡后醒觉大于 5分钟次数、COPD组浅睡眠的比率、深睡眠的缺乏率及快速眼动期 (REM )缺乏率与对照组比较差异均有非常显著性 (P <0 .0 1~ 0 .0 0 1)。COPD组氧饱和度降低≥ 4% ,氧饱和度 85 %~ 5 0 %频率分布 ,夜间最高、最低和平均氧饱和度、第 9指标 (SIT 85 % )、第 10指标 (△SaO2 )均与对照组比较差异有非常显著性 (P <0 .0 0 1)。结论 COPD患者有严重的睡眠呼吸紊乱和睡眠破碎 ,并有严重的夜间低氧血症和呼吸暂停。加强对COPD患者夜间睡眠和SaO2 监测 ,对于提高患者的生命质量具有十分重要的意义 相似文献
4.
高脂血症与血清载脂蛋白含量关系的研究 总被引:2,自引:0,他引:2
目的 探讨高脂血症与载脂蛋白的关系。方法 对杭州市 6 6 9名高脂血症患者和 2 6 2名健康人 ,用全自动生化分析仪测定TC、TG、HDL -C、LDL -C、ApoAⅠ、AⅡ、B、CⅡ、CⅢ、E。结果 与健康对照组比较 (1)高胆固醇血症组 ,HDL -C、LDL -C明显升高 (P <0 0 1) ,各类载脂蛋白均升高 ,尤以ApoAⅠ升高最明显。 (2 )高甘油三酯血症组 ,HDL-C低于正常对照组 (P <0 0 1) ,LDL -C无显著性差异 (P >0 0 5 ) ,ApoAⅠ降低 (P <0 0 1) ,ApoB、ApoCⅡ、ApoCⅢ、ApoE均有明显升高 (P <0 0 1)。 (3)混合型高脂血症组 ,LDL -C升高 (P <0 0 1) ,ApoAⅡ、ApoB、ApoCⅡ、ApoCⅢ、ApoE升高最明显 (P <0 0 1)。结论 高脂血症ApoAⅡ、B、CⅡ、CⅢ、E水平均升高 ;高胆固醇血症ApoAⅠ、B和HDL -C、LDL -C可同时升高 ;ApoCⅢ是高甘油三酯的重要影响因素 ;混合型高脂血症高甘油三酯伴LDL -C/HDL -C比值升高 ,可视为CHD的高危人群 相似文献
5.
老年人睡眠呼吸暂停综合征醒觉特点探讨 总被引:1,自引:0,他引:1
目的 探讨老年睡眠呼吸暂停综合征 (SAS)患者醒觉 (arousal)与呼吸暂停的关系。 方法 62例老年患者经全导睡眠图检查确诊为SAS ,同时记录实际睡眠时间、呼吸暂停 低通气指数(AHI)、总醒觉发生次数、醒觉指数 (AI)、呼吸事件相关醒觉次数、>15s觉醒次数、低氧血症程度等 ;64例非老年SAS患者作为对照。 10例老年患者应用经鼻持续气道正压 (nCPAP)治疗 ,比较治疗前、后上述各项指标的变化。 结果 62例老年SAS患者平均AHI为 (3 5 1± 2 3 2 )次 /h ,平均AI为 (15 8±11 4)次 /h ,其中呼吸相关醒觉只占总醒觉的 44 1% ,>15s的觉醒只占总醒觉的 6 1% ;64例非老年组平均AHI为 (3 9 1± 2 7 2 )次 /h ,平均AI为 (2 0 4± 13 0 )次 /h ,呼吸相关醒觉占总醒觉的 5 1 3 % ,>15s的觉醒占总醒觉的 6 7%。老年及非老年SAS组中均有 5 0 %患者发生重度低氧。老年组的醒觉指数和呼吸相关醒觉均显著低于非老年组 (P <0 0 5 )。 10例老年患者经使用nCPAP治疗后 ,AHI、AI、呼吸事件相关醒觉次数及其占总醒觉比例、>15s觉醒次数及其占总醒觉比例均比治疗前明显减低(P <0 0 1)。 结论 老年SAS患者对睡眠中频繁出现的呼吸事件的反应降低 ,甚至不能作出反应 ,睡眠中频繁出现低氧血症 ,nCPAP可纠正呼吸事件的发 相似文献
6.
目的探讨睡眠呼吸暂停综合征(SAS)患者红细胞压积与夜间低氧血症的相关性.方法对290例有夜间打鼾伴超重的男性患者进行夜间持续7小时多导睡眠监测.监测项目包括夜间最低氧饱和度、夜间平均氧饱和度、氧饱和度低于90%所累计的时间(TST90%)、体位;于次日晨空腹抽取静脉血进行血细胞计数测定.SAS定义为睡眠呼吸暂停低通气指数(AHI)≥5次/h,AHI<5次/h作为对照组(30例),分析夜间血氧指标与红细胞压积的相关性.结果①SAS患者年龄、体重指数、AHI和TST90%显著高于对照组(P<0.05~0.001),夜间最低氧饱和度、夜间平均氧饱和度则显著低于对照组(P<0.001);SAS轻-中度组(AHI 5~30,132例)和SAS重度组(AHI>30,128例)与对照组比较血细胞各参数水平均无统计学差异(P均>0.05).②调整年龄、体重指数、基础疾病、收缩压、舒张压和血脂等多个因素后,SAS患者的红细胞压积仍与夜间最低氧饱和度呈显著负相关,而与AHI呈显著正相关.结论SAS患者红细胞压积升高与夜间最低氧饱和度和AHI有相关性. 相似文献
7.
亚甲基四氢叶酸还原酶基因多态性及血中同型半胱氨酸和叶酸水平与冠心病的关系 总被引:10,自引:0,他引:10
目的 观察高同型半胱氨酸 (HCY)血症是否为中国人冠心病 (CHD)的一个独立危险因素 ,以及探讨亚甲基四氢叶酸还原酶 (MTHFR)基因多态性与冠心病的联系 ,并分析HCY、叶酸与MTHFR基因多态性间的相互关系。方法 选择CHD患者 16 1例 ,其中 15 4例行冠状动脉造影证实。正常对照 12 5例。应用荧光免疫偏振法测定血浆HCY ,放免法测定血清叶酸 ,分析MTHFR基因多态性。结果 CHD患者血浆HCY浓度显著高于对照组 [分别为 (15 2 4± 9 5 9)与 (11 4 3± 6 4 4 ) μmol L ,P <0 0 1]。logistic回归分析显示性别、年龄、脂蛋白B和高HCY血症是CHD发病的独立危险因素 ,高HCY血症的优势比 (OR)为 2 5 70 7,其 95 %的可信区间 1 30 0 3~ 5 0 82 5。CHD组MTHFR基因C6 77T突变TT型的频率为 2 9 2 % ,明显高于对照组 16 8% (P =0 0 15 )。CHD组T等位基因频率显著高于对照组 (P =0 0 0 4 )。CHD组和对照组TT型的血浆HCY水平明显高于CT和CC型 (P <0 0 0 1)。CHD组各基因型的HCY水平均高于对照组 (P <0 0 0 1~ 0 0 1)。多元逐步回归显示 :血清叶酸浓度、TT型与血浆HCY浓度独立相关。CHD组和对照组的TT型中 ,血清叶酸水平 <对照组中位数时的HCY水平显著高于叶酸≥中位数时的HCY值。叶酸 <中位数时 ,TT型HCY水平显著 相似文献
8.
不同类型高脂血症小而密低密度脂蛋白的水平及调血脂治疗对其影响 总被引:6,自引:0,他引:6
目的 :研究不同类型高脂血症患者血清小而密低密度脂蛋白胆固醇 (LDL C)水平的变化 ,观察血脂康调血脂治疗对高脂血症患者小而密LDL C的影响。方法 :采用非变型梯度凝胶电泳法分别测定 37例冠状动脉 (冠脉 )正常的高脂血症患者 (A组 ) ,131例冠脉造影证实有冠心病的高脂血症患者 (B组 )及 40例冠脉及血脂均正常的受检者 (对照组 )和 80例血脂正常的冠心病患者 (C组 )血清小而密LDL C的水平 ,比较A、B和C组间小而密LDL C水平的差异 ;将B组分为 3个亚组即 40例高胆固醇血症患者 (B1组 )、49例混合型高脂血症患者 (B2组 )、42例高甘油三酯血症患者 (B3组 ) ,给予调血脂治疗 8周 ,分别测定治疗前后该 3个亚组血清小而密LDL C的水平 ,并与对照组对比。结果 :与对照组相比 ,A组患者血清小而密LDL C占总LDL C含量的百分比仅有轻度升高 [(45 5± 5 5 ) %比(40 6± 6 3) % ,P >0 0 5 ] ,B组和C组患者血清小而密LDL C的含量明显升高 [(65 8± 8 2 ) %和 (68 3± 13 8) % ,P <0 0 1]。B组中以B 2组 [(65 7± 7 8) % ,P <0 0 1]和B3组 [(69 3± 7 8) % ,P <0 0 1]患者升高最为明显。调血脂治疗后血清小而密LDL C实际含量均较治疗前显著下降。结论 :合并有冠心病的高脂血症患者小而密LDL C的升高更为明显 , 相似文献
9.
睡眠呼吸暂停综合征 (SAS)与冠心病 (CHD)具有较强相关性。 1 999年 1月至 2 0 0 2年 1 0月 ,我们对SAS并 CHD的 96例患者分别进行常规药物治疗及加用持续呼吸道内正压通气 (CPAP)治疗 ,观察CPAP对心肌缺血及睡眠呼吸参数的影响 ,评价其在SAS并 CHD治疗中的价值。1 资料与方法1 .1 临床资料 本文 SAS并 CHD患者 96例 ,CHD根据 WHO制定 ,SAS按 1 991年第一届全国睡眠学术会议制定的标准诊断。患者随机分为两组 ,其中对照组 48例 ,男 3 9例、女 9例 ,平均年龄 (5 2± 9)岁 ;治疗组 48例 ,男 41例、女 7例 ,平均年龄 (5 2… 相似文献
10.
阻塞性睡眠呼吸暂停低通气综合征患者睡眠时的呼吸中枢反应性与夜间低氧血症的关系 总被引:6,自引:0,他引:6
目的 探讨阻塞性睡眠呼吸暂停低通气综合征 (OSAHS)患者夜间低氧血症与呼吸中枢反应性的关系。方法 应用动态脉搏容积血氧饱和度 (SpO2 )仪定量分析了 2 4例白天二氧化碳分压(PaCO2 )≥ 4 5mmHg(高CO2 组 ,1mmHg=0 133kPa)及 39例PaCO2 <4 5mmHg(等CO2 组 )的OSAHS患者夜间低氧血症的严重程度。进一步应用重复呼吸法测定了其中 15例患者 (等CO2 组 11例 ,高CO2 组 4例 )睡眠状态下呼吸中枢的低氧及高CO2 反应性。结果 6 3例患者的睡眠呼吸暂停低通气指数 (AHI)平均为 (5 4± 2 1)次 /h ;夜间动态SaO2 监测发现高CO2 组与等CO2 组比较 ,每小时氧减饱和4 %以上的次数 (ODI4)为 (43± 2 3)次 /hvs (2 9± 18)次 /h ;SaO2 <90 %的时间占总睡眠时间的百分数(SIT90 )为 (39± 32 ) %vs(15± 18) % ,高CO2 组均较等CO2 组高 ;而睡眠时的最低SaO2 (LSaO2 )为 (5 6± 18) %vs (6 6± 16 ) % ,平均SaO2 (MSaO2 )为 (86± 12 ) %vs(93± 5 ) % ,均较等CO2 组低 (P <0 0 1) ,提示其夜间缺氧程度更重。在清醒状态下 ,高CO2 组及等CO2 组患者的高CO2 反应 (ΔP0 1/ΔPaCO2 )、低氧反应 (ΔP0 1/ΔSaO2 )、口腔阻断压 (P0 1)差异均无显著性 (P >0 1)。进入非快动眼睡眠 (NREM)及快动眼睡眠 (REM)后 ,高CO2 组 相似文献
11.
Relying on a certain degree of abstraction, we can propose that no particular distinction exists between animate or living matter and inanimate matter. While focusing attention on some specifics, the dividing line between the two can be drawn. The most apparent distinction is in the level of structural and functional organization with the dissimilar streams of ‘energy flow’ between the observed entity and the surrounding environment. In essence, living matter is created from inanimate matter which is organized to contain internal intense energy processes and maintain lower intensity energy exchange processes with the environment. Taking internal and external energy processes into account, we contend in this paper that living matter can be referred to as matter of dissipative structure, with this structure assumed to be a common quality of all living creatures and living matter in general. Interruption of internal energy conversion processes and terminating the controlled energy exchange with the environment leads to degeneration of dissipative structure and reduction of the same to inanimate matter, (gas, liquid and/or solid inanimate substances), and ultimately what can be called ‘death.’ This concept of what we call dissipative nature can be extended from living organisms to social groups of animals, to mankind. An analogy based on the organization of matter provides a basis for a functional model of living entities. The models relies on the parallels among the three central structures of any cell (nucleus, cytoplasm and outer membrane) and the human body (central organs, body fluids along with the connective tissues, and external skin integument). This three-part structural organization may be observed almost universally in nature. It can be observed from the atomic structure to the planetary and intergalactic organizations. This similarity is corroborated by the membrane theory applied to living organisms. According to the energy nature of living matter and the proposed functional model, the decreased integrity of a human body's external envelope membrane is a first cause of the structural degradation and aging of the entire organism. The aging process than progresses externally to internally, as in single cell organisms, suggesting that much of the efforts towards the restoration and maintenance of the mechanisms responsible for structural development should be focused accordingly, on the membrane, i.e., the skin. Numerous reports indicate that all parts of the human body, like: bones, blood with blood vessels, muscles, skin, and so on, have some ability for restoration. Therefore, actual revival of not only aging tissue of the human body's membrane, but the entire human body enclosed within, with all internal organs, might be expected. We assess several aging theories within the context of our model and provide suggestions on how to activate the body's own anti-aging mechanisms and increase longevity. This paper presents some analogies and some distinctions that exist between the living dissipative structure matter and inanimate matter, discusses the aging process and proposes certain aging reversal solutions. 相似文献
12.
The immunoneuroendocrine role of melatonin 总被引:19,自引:0,他引:19
Georges J. M. Maestroni 《Journal of pineal research》1993,14(1):1-10
Abstract: A tight, physiological link between the pineal gland and the immune system is emerging from a series of experimental studies. This link might reflect the evolutionary connection between self-recognition and reproduction. Pinealectomy or other experimental methods which inhibit melatonin synthesis and secretion induce a state of immunodepression which is counteracted by melatonin. In general, melatonin seems to have an immunoenhancing effect that is particularly apparent in immunodepressive states. The negative effect of acute stress or immunosuppressive pharmacological treatments on various immune parameters are counteracted by melatonin. It seems important to note that one of the main targets of melatonin is the thymus, i.e., the central organ of the immune system. The clinical use of melatonin as an immunotherapeutic agent seems promising in primary and secondary immunodeficiencies as well as in cancer immunotherapy. The immunoenhancing action of melatonin seems to be mediated by T-helper cell-derived opioid peptides as well as by lymphokines and, perhaps, by pituitary hormones. Melatonin-induced-immuno-opioids (MHO) and lymphokines imply the presence of specific binding sites or melatonin receptors on cells of the immune system. On the other hand, lymphokines such as -γ-interferon and interleukin-2 as well as thymic hormones can modulate the synthesis of melatonin in the pineal gland. The pineal gland might thus be viewed as the crux of a sophisticated immunoneuroendocrine network which functions as an unconscious, diffuse sensory organ. 相似文献
13.
Unusual responses of nocturnal pineal melatonin synthesis and secretion to swimming: Attempts to define mechanisms 总被引:1,自引:0,他引:1
Ken Yaga Dun-xian Tan Russel J. Reiter Lucien C. Manchester Atsuhiko Hattori 《Journal of pineal research》1993,14(2):98-103
Abstract: The effect of swimming at night on rat pineal melatonin synthesis was compared with that of light exposure at night. Rats were forced to swim at 0030 hr (lights out at 2000 hr) and sacrificed by decapitation 15 and 30 min later, immediately after swimming. Other groups of animals were exposed to white light (650μW/cm2) for 15 and 30 min at same time. Swimming caused a rapid and highly significant drop in the melatonin content in the pineal gland; however, the activity of N-acetyltransferase (NAT), the supposed rate limiting enzyme in the melatonin production, was not changed. Despite the drop in pineal melatonin levels, serum concentrations of the indole remained elevated in the rats that swam. In contrast, melatonin levels in the pineal and serum of light exposed rats fell precipitously, accompanied by a significant suppression of NAT activity. Since we anticipated that the strenuous exercise associated with swimming may induce release of artrial natriuretic peptide (ANP) from the heart, which in turn could cause the release of pineal melatonin, in a second study we injected physiological saline intravenously to stretch the cardiac muscle and release ANP. Three milliliters of normal saline was injected during the day into the jugular vein of anesthetized rats that were pretreated with isoproterenol to stimulate pineal melatonin production. Animals were killed 15 min after the saline injection, and pineal NAT activity and pineal melatonin levels were measured. The saline injections caused no alteration in the elevated levels of either NAT or melatonin. These data suggest that the disparity in pineal NAT activity (which was high) and pineal melatonin (which was low), in animals swum at night, may not be caused by ANP which is released during strenuous exercise such as swimming. 相似文献
14.
15.
Abstract: Well-established circadian physiology supports the view that photoperiodic time measurement utilizes the coincidence between the presence of light and a photosensitive phase of a 'biological clock' to alter reproductive status—the so-called external coincidence model of seasonal breeding. In this review, we examine the mechanism whereby photoperiod interacts with presumed suprachiasmatic nuclei activity to allow endogenous melatonin to normally synchronize reproductive activity to the optimal time of year. The Romney Marsh sheep is particularly explored as an experimental model. It is suggested that the on/off activity of seasonal reproduction may be a robust mechanism able to be predictably manipulated by the judicious use of the light/dark cycle and exogenous melatonin, but firmly based on circadian principles. 相似文献
16.
Abstract: Herein we documented the response of pineal melatonin production to electrolytes known to be effective on pineal function in view of a possible circadian stage dependence. We studied the release of melatonin by perifused rat pineal glands at 2 different circadian stages corresponding to the middle of the light and dark periods, i.e., respectively, 7 and 19 HALO (Hours After Light Onset, L:D = 12:12). The initial efflux rates were, as expected, much higher in the perifusates of glands removed from rats sacrificed during the dark phase than of those removed during the light phase. After 3 hr of perifusion, melatonin release reached similar levels which were found constant up to the 8th hr of perifusion, whatever the circadian stage. Perifusion of the glands with physiological concentrations for the rat of calcium (5.2 mmol/1) and magnesium (1.34 mmol/1) resulted in a stimulatory effect on the pineal glands removed from rats sacrificed in the middle of the dark period (19 HALO), whereas no effects were observed on the pineal glands removed from rats sacrificed during the light (7 HALO). Lithium (0.28 and 0.55 mmol/1) was ineffective on melatonin release in pineal glands removed 7 and 19 HALO. Our results show differences in the initial efflux rates of melatonin and in the response of perifused pineal glands to calcium and magnesium according to the circadian stage. 相似文献
17.
Microbiology of human immunodeficiency virus anorectal disease 总被引:3,自引:3,他引:0
Gary S. Goldberg B.A. Bruce A. Orkin M.D. Lee E. Smith M.D. 《Diseases of the colon and rectum》1994,37(5):439-443
PURPOSE: Individuals who are seropositive for the human immunodeficiency virus are at high risk for opportunistic infection and anorectal disorders. Little prospective information is available regarding anorectal pathogens in these patients. METHODS: One hundred sixty-three HIV-seropositive patients presented to the colorectal clinic between 1989 and 1992. Forty-seven (29 percent) patients were thought to have an infectious process and were prospectively studied using a standardized multiculture protocol. RESULTS: Mean age was 33 (range, 19–59) years. All were male; high-risk behavior accounted for 87 percent of HIV transmissions. Presenting complaints included anorectal pain (79 percent), pus per anum (28 percent), and blood per anum (26 percent). Examination revealed perianal tenderness (60 percent), condyloma (38 percent), perianal ulcers (38 percent), and anal fissures (34 percent). Sixty-six sets of cultures were performed; 28 patients had one set, 15 had two sets, and 4 had three sets. Thirty-two of these 47 patients (68 percent) had positive cultures including herpes (50 percent), cytomegalovirus (25 percent),Neisseria gonorrhoeae
(16 percent), chlamydia (16 percent), acidfast bacilli (2 percent), and others (9 percent). Six of 32 patients with positive cultures had more than one organism cultured. Sixteen (50 percent) patients with positive cultures were treated medically, 8 (25 percent) were treated surgically and 8 (25 percent) were treated with both modalities. Sixty-one procedures were performed on 17 patients for condylomata. Eighteen patients had 20 procedures for abscesses, 50 percent of whom had positive cultures for other than common bowel flora; all improved. Fourteen patients underwent 33 procedures for perianal fistulas.Mycobacterium fortuitum
was cultured from one patient who required 13 procedures for abscesses and fistulas. Forty-five (96 percent) patients were followed for an average of 12.5 months ±2.9 SEM (range, 1–94 months). Symptoms were improved or resolved in 22 of 32 (69 percent) patients with positive cultures and in 11 of 13 (84 percent) with negative cultures. CONCLUSIONS: Specific pathogens may often be identified in human immunodeficiency virus-seropositive patients with anorectal disorders if aggressively sought. Although patients without specific pathogens identified may be expected to improve with planned empiric treatment, positive identification allows more directed therapy. 相似文献
18.
Martinez-Cecilia D Arjona-Sanchez A Gomez-Alvarez M Torres-Tordera E Luque-Molina A Valenti-Azcarate V Briceno-Delgado J Padillo FJ Lopez-Cillero P Rufian-Pena S 《World journal of gastroenterology : WJG》2008,14(12):1949-1951
Duodenal diverticula are a relatively common condition. They are asymptomatic, unless they become complicated, with perforation being the rarest but most severe complication. Surgical treatment is the most frequently performed approach. We report the case of a patient with a perforated duodenal diverticulum, which was diagnosed early and treated conservatively with antibiotics and percutaneous drainage of secondary retroperitoneal abscesses. We suggest this method could be an acceptable option for the management of similar cases, provided that the patient is in good general condition and without septic signs. 相似文献
19.
Changes in connexin43, the gap junction protein of astrocytes, during development of the rat pineal gland 总被引:2,自引:0,他引:2
Abstract: The abundance of gap junctions between rat pineal astrocytes formed by connexin43 (Cx43) was studied during development. Levels and distribution of Cx43 were measured by immunoblotting and indirect immunofluorescence, respectively. The amount of Cx43 in cells located within the gland was low until about the 7th postnatal day and increased to adult values between the 14th and 21st days postpartum. Although astrocytes, recognized by their vimentin immunoreactivity, were scarce before birth, they were abundant by the 7th postnatal day suggesting that the low levels of Cx43 found at this age corresponded to a low expression of this protein. Localization of the immunoreactivity to Cx43 and vimentin showed a close correlation, indicating that mature or immature pineal astrocytes form gap junctions made of Cx43. Since Cx43 levels attained their adult values at about the time the innervation and the functional state of the gland reached maturity (2–3 weeks after birth), it is proposed that astrocyte gap junctions are involved in the function of the adult rat pineal gland. 相似文献