从“阳化气,阴成形”角度阐释肠促胰素在糖脂代谢中的作用

糖脂代谢是人体生命活动中重要的物质代谢过程,其合成代谢与分解代谢的相互协调确保正常的生理功能。阴阳学说中“阳化气”“阴成形”的理论是对机体生命规律及物质与能量关系的生动描述。抑胃肽(GIP)和胰高血糖素样肽1(GLP-1)作为2种主要的肠促胰素,由肠道内分泌细胞产生,作用于胰腺、脑、肝脏等组织,合成与分解饮食中的糖类与脂质,为机体提供能量并存储能量。其中,GIP刺激白色脂肪,促进脂质储存,具有类似于“阴成形”的作用,GLP-1刺激棕色脂肪,增加产热,具有类似于“阳化气”的作用,二者之间还有对立制约、互根互用、消长平衡的阴阳关系。GIP与GLP-1的关系与机体糖脂代谢的生理、病理学密切相关。糖脂代谢紊乱早期均以瘀滞状态为主,糖尿病以阳盛阴病为主,而肥胖症以阴盛阳病为主。调整阴阳可改善糖脂代谢紊乱状态,现代医学研究表明,共同激动GIP与GLP-1,会产生更好地控制血糖、体质量的效果。本文借助中医阴阳理论,以肠促胰素为切入点,浅析GIP与GLP-1在糖脂代谢中的作用关系,以丰富中医药对糖尿病、肥胖症等代谢疾病的研究思路。     

顺铂等药物灌注化疗和恩度治疗恶性胸腹腔积液的研究

目的观察顺铂等灌注和恩度治疗恶性胸腹积液的临床疗效及安全性。方法 62例晚期恶性胸腹水患者,治疗组32例,胸/腹腔内灌注恩度和化疗药物DDP/5-FU,对照组30例,仅灌注化疗药物DDP/5-FU,均3次/周,连续4周为一疗程,休息4周后,评价疗效及不良反应。结果治疗组中12例CR,16例PR,3例SD,1例PD,有效率为87.5%;对照组6例CR,13例PR,7例SD,4例PD,有效率为63.3%,两组比较差异有统计学意义（P〈0.05）,不良反应发生率两组比较无统计学意义（P〉0.05）。结论顺铂等加恩度灌注治疗恶性胸腹腔积液有较好的疗效和安全性,并有效提高了晚期肿瘤患者的生活质量,值得临床进一步推广应用。     

全反式维甲酸联合5-氟尿嘧啶对Eca109细胞增殖、迁移和VEGF表达的影响

目的:探讨全反式维甲酸(ATRA)、5-氟尿嘧啶(5-FU)单独或联合作用对Eca109细胞增殖、迁移和血管内皮生长因子(VEGF)表达的影响。方法:将常规传代的Eca109细胞分为4组:ATRA组、5-FU组、ATRA+5-FU组和对照组,采用MTT法检测各组细胞的增殖情况,通过划痕实验测定各组细胞的迁移能力,采用RT-PCR和免疫细胞化学法分别检测各组细胞VEGF mRNA和蛋白的表达情况。结果:作用24、48和72 h后,ATRA+5-FU组的细胞生长抑制率均高于其他2组(F=23.432、13.605、73.369,P均<0.05);作用24 h后,ATRA+5-FU组的迁移率均低于其他3组(P均<0.001);作用48 h后,ATRA+5-FU组细胞VEGF mRNA和蛋白的相对表达量均低于其他3组(P均<0.05)。结论:ATRA、5-FU均能抑制食管癌细胞的增殖,且联合用药效果更为显著,可能与其抑制肿瘤血管生成有关。     

幽门螺杆菌及胃蛋白酶原、胃泌素17水平在胃癌前病变诊断中的应用价值

目的 探讨幽门螺杆菌(H.pylori)与胃蛋白酶原(PG)、胃泌素17(G17)与胃癌前病变的相关性.方法选取在我院行胃镜检查的患者856例,其中471例病理检出癌前病变的患者为病例组,385例未检出癌前病变的患者为对照组.病例组按病理诊断结果分为慢性萎缩性胃炎(CAG)组157例,肠化(IM)组153例,低级别上皮...     

Perforative Peritonitis—Gastrointestinal Tract May Not Always Be the Source

Perforative peritonitis is the most common surgical emergency in general surgical practice. Gastrointestinal perforation is the etiology in the vast majority of the patients. However, occasionally, other rare causes may be encountered. One such cause of peritonitis is spontaneous perforation of non-gravid uterus. Uterine perforation is a potential complication of any intrauterine procedure and may be associated with injury to surrounding blood vessels or viscera such as the urinary bladder or intestine. Spontaneous uterine perforation is rare and less than 50 cases have been reported in the English literature. We are presenting two such cases of spontaneous perforation of the uterus in elderly postmenopausal women which presented with generalized peritonitis and were clinically indistinguishable from gastrointestinal perforation.     

Pellagra in a child–A rare entity

This case has been presented as pellagra, which is very rare in children. Pellagra is due dietary deficiency of niacin. Usually seen in alcoholics, malabsorption syndromes occur very rarely in children. A 11-y-old girl presented with well-defined, hyperpigmented, hyperkeratotic, symmetrical, thick scaly plaques surrounded by erythema on the dorsum of the hands, arms, feet, legs up to knees, and along the sides of the neck. The child was given 100 mg of Nicotinamide. Skin lesions resolved rapidly with the treatment and the child improved.     

Use of Unique Doppler Flow‐Pattern for the Diagnosis of Left Ventricular Diverticulum

Isolated congenital left ventricular diverticulum (LV) is reportedly a rare finding. It is frequently associated with other congenital defects involving heart, pericardium, sternum, diaphragm, and abdominal wall. It is an outpouching from the ventricle and has all three layers of left ventricular free walls. We present the case of a 53‐year‐old woman who was discovered to have an outpouching of the LV apex on a nongated chest CT scan raising possibility of a pseudoaneurysm. A transesophageal echocardiogram (TEE) showed systolic diminution of this outpouching with unique Doppler flow‐patterns suggesting a diagnosis of a muscular type of LV diverticulum instead of a postinfarct LV pseudoaneurysm. The patient was reassured and treated conservatively.