BACKGROUND Renal angiomyolipoma and renal cell carcinoma are the most common benign and malignant tumors of the kidney respectively,and the preoperative differential diagnosis is crucial due to the wide difference in ...BACKGROUND Renal angiomyolipoma and renal cell carcinoma are the most common benign and malignant tumors of the kidney respectively,and the preoperative differential diagnosis is crucial due to the wide difference in treatment methods.Fat-poor renal angiomyolipoma is a relatively rare type of in renal angiomyolipoma.Its fat imaging features are not obvious,and it is easily misdiagnosed as renal cell carcinoma.CASE SUMMARY We report the case of a 41-year-old man who complained of osphyalgia.Subsequent abdominal computed tomography scans revealed that a heterogeneous mass was seen in the lower pole of the right kidney,with the size of about 53 mm×47 mm.And showed two right renal arteries,with the mass supplied by an ectopic vessel from the abdominal aorta.Fluorescent laparoscopic blockade of the right renal heterotopic artery and partial nephrectomy was performed.Based on histological and immunohistochemical findings,the tumor was diagnosed as fatpoor renal angiomyolipoma.CONCLUSION The use of fluorescent laparoscopy can effectively help intraoperative management,and the fluorescence pattern provided by intravenous indocyanine green can help suggest the final diagnosis,effectively guide the surgical decisionmaking,and avoid preoperative imaging diagnosis leading to nephrectomy for benign renal tumors,through fluorescent navigation of tumor supply vessel precise block,minimize the loss of renal function.展开更多
OBJECTIVE: To investigate the origin of blood supply to cavernous hemangioma of the liver (CHL). METHODS: To observe the relation of cavernous hemangioma of the liver to the hepatic artery and portal vein, we performe...OBJECTIVE: To investigate the origin of blood supply to cavernous hemangioma of the liver (CHL). METHODS: To observe the relation of cavernous hemangioma of the liver to the hepatic artery and portal vein, we performed serial selective hepatic arteriography in 22 patients. Five patients after ligation of the right hepatic arteries underwent portography and liver staining by in jection of methylene blue into the portal veins and 2 patients had hepatic specimens resected, which were made into a model cast by filling the hepatic veins (yellow) and portal venous branches (blue) with methyl methacrylate after vascular lavage. RESULTS: Serial selective hepatic arteriography showed that hepatic arteries and hemangioma were displayed simultaneously, and that hemangioma was supplied by one to numerous arterial branches. In the portal phase of portography, contrast medium failed to enter the tumor and the intrahepatic branches of the portal vein were pushed aside by the tumor; in the liver parenchymal phase, however, the tumor appeared to be a low-density area. Hepatic arteriography and portography revealed that the fistula between the artery and portal vein may not be existed. The liver stained with methylene blue showed that the normal hepatic parenchyma could be stained with deep blue; in contrast, the tumor was not stained at all. The casting specimens showed that the eroded tumor left a round vacant area because of its total shedding, and no blue stained branches of the portal vein extended into the tumor. CONCLUSION: Blood supply of CHL may originate from the hepatic artery.展开更多
Reported here are two cases of a modified Appleby operation for borderline resectable ductal adenocarcinoma of the pancreatic body, in one of which a R0 distal resection was attended to by excision, not only of the ce...Reported here are two cases of a modified Appleby operation for borderline resectable ductal adenocarcinoma of the pancreatic body, in one of which a R0 distal resection was attended to by excision, not only of the celiac axis, but also of the common and left hepatic arteries in the presence of arterial anatomic variation Michels, type Ⅷb. The possibility and avenues of the maintenance of the blood supply to the left hepatic lobe after surgical aggression of this kind are demonstrated employing computed tomography (CT) and 3-D CT angiography. Furthermore, both cases highlight all important worrisome aspects of pancreatic cancer resectability prediction.展开更多
AIM: To investigate the role of intestinal mucosal blood flow (IMBF) and motility in the damage of intestinal mucosal barrier in rats with traumatic brain injury. METHODS: Sixty-four healthy male Wistar rats were ...AIM: To investigate the role of intestinal mucosal blood flow (IMBF) and motility in the damage of intestinal mucosal barrier in rats with traumatic brain injury. METHODS: Sixty-four healthy male Wistar rats were divided randomly into two groups: traumatic brain injury (TBI) group (n = 32), rats with traumatic brain injury; and control group (n = 32), rats with sham-operation. Each group was divided into four subgroups (n = 8) as 6, 12, 24 and 48 h after operation. Intestinal motility was measured by the propulsion ratio of a semi-solid colored marker (carbon-ink). IMBF was measured with the laser-Doppler technique. Endotoxin and D-xylose levels in plasma were measured to evaluate the change of intestinal mucosal barrier function following TBI. RESULTS: The level of endotoxin was significantly higher in TBI group than in the control group at each time point (0.382 ± 0.014 EU/mL vs 0.102 ± 0.007 EU/mL, 0.466 ± 0.018 EU/mL vs 0.114 ± 0.021 EU/mL, 0.478± 0.029 EU/mL vs 0.112 ±- 0.018 EU/mL and 0.412± 0.036 EU/mL vs 0.108 ±0.011 EU/mL, P 〈 0.05). D-xylose concentrations in plasma in TBI group were significantly higher than in the control group (6.68 ± 2.37 mmol/L vs 3.66 ±1.07 retool/L, 8.51 ± 2.69 mmol/L vs 3.15 + 0.95 mmol/L, 11.68 ±3.24 mmol/L vs 3.78 ± 1.12 mmol/L and 10.23 ± 2.83 mmol/L vs 3.34 ± 1.23 mmol/L, P 〈 0.05). The IMBF in TBI group was significantly lower than that in the control group (38.5 ± 2.8 PU vs 45.6 ± 4.6 PU, 25.2 ± 3.1 PU vs 48.2 ± 5.3 PU, 21.5 ± 2.7 PU vs 44.9 ± 2.8 PU, 29. 4 ± 3.8 PU vs 46.7 ± 3.2 PU) (P 〈 0.05). Significant decelerations of intestinal propulsion ratio in T8I groups were found compared with the control group (0.48% ± 0.06% vs 0.62%± 0.03%, 0.37% ±0.05% vs 0.64% ± 0.01%, 0.39% ± 0.07% vs 0.63% =1= 0.05% and 0.46% ± 0.03% vs 0.65% ± 0.02%) (P 〈 0.05). CONCLUSION: The intestinal mucosal permeability is increased obviously in TBI rats. Decrease of intestinal motility and IMBF occur early in TBI, both are important pathogenic factors for stress-related damage of the intestinal mucosal barrier in TBI.展开更多
AIM To investigate the source of blood supply of carvenous hemangioma of liver (CHL) and provide a feasibile treatment for CHL via hepatic artery. METHODS Ⅰ. Origin of blood supply of CHL: portovenography, hepatic...AIM To investigate the source of blood supply of carvenous hemangioma of liver (CHL) and provide a feasibile treatment for CHL via hepatic artery. METHODS Ⅰ. Origin of blood supply of CHL: portovenography, hepatic arteriography and portal vein staining were performed in 5 patients. Two casts of hepatic blood vessels from resected specimen were observed. Ⅱ. Clinical data: Among 75 patients (30 males, 45 females, aged 25~57 years with a mean of 37 4). 56 were of solitary type (44 on the right lobe, 12 on the left with 4 having intraparenchymatoma) and 19 were of multiple type (9 on the right, 2 the left, 8 whole liver). Twenty two patients were treated by sclerosis, 50 by embolization via hepatic artery and 3 were excised. RESULTS In 5 cases with portography, the contrast medium did not enter the tumor, the tumor appeared as low denty area and the intrahepatic branches of portal vein were pushed aside. In 5 cases with portal vein staining, the normal liver parenchyma was stained deep blue, and the tumor was not stained. The tumor area appeared as a round vacant cavity in 2 specimen casts. In 72 patients treated with sclerosis a or embolization via hepatic artery or through interventional method, the tumors diminished by 10%~30% in diameter and no tumors grew larger. CONCLUSION The blood supply of CHL originates from the hepatic artery. Tumors treated with sclerosis and emblization decreased in size or got fiberized.展开更多
AIM: To determine if anisodamine is able to augment mucosal perfusion during gut I/R ischemia-reperfusion. METHODS: A jejunal sac was formed in Sprague Dawley rat. A Laser Doppler probe and a tonometer were inserted i...AIM: To determine if anisodamine is able to augment mucosal perfusion during gut I/R ischemia-reperfusion. METHODS: A jejunal sac was formed in Sprague Dawley rat. A Laser Doppler probe and a tonometer were inserted into the sac which was filled with saline. The superior mesenteric artery was occluded (SMAO)for 60 minutes followed by 90 minutes of reperfusion. At the end of 60 minutes of SMAO, either 0.2 mg/kg of anisodmine or dobutamine was injected into the jejunal sac. Laser Doppler mucosal blood flow and regional PCO2 (PrCO2)measurements were made. RESULTS: Mucosal blood flow was significantly increased at 30,60 and 90 minutes of reperfusion (R30, R60, R90) when intraluminal anisodamine or dobutamine was present compared to intraluminal saline only(44+/-3.3% or 48+/-4.1% vs 37+/-2.6% at R30, 57+/-5.0% or 56+/-4.7% vs 45+/-2.7% at R60, 64+/-3.3% or 56+/-4.2% vs 48+/-3.4% at R90,respectively P【0.05). Blood flow changes were also reflected by lowering of jejunal PrCO2 measurements after intraluminal anisodamine or dobutamine compared with that of the saline controls (41+/-3.1 mmHg or 44+/-3.0 mmHg vs 49+/-3.7 mmHg at R30,38+/-3.7 mmHg or 40+/-2.1 mmHg vs 47+/-3.8 mmHg at R60,34+/-2.1 mmHg or 39+/-3.0 mmHg vs 46+/-3.4 mmHg at R90, respectively, P【0.05). Most interesting finding was that there were significantly higher mucosal blood flow and lower jejunal PrCO2 in anisodamine group than those in dobutamine group at 90 minutes of reperfusion(64+/-3.3% vs 56+/-4.2% for blood flow or 34+/-2.1 mmHg vs 39+/-3.0 mmHg for PrCO2, respectively, P【0.05), suggesting that anisodamine had a more lasting effect on mucosal perfusion than dobutamine. CONCLUSION: Intraluminal anisodamine and dobutamine can augment mucosal blood flow during gut I/R and alleviate mucosal acidosis. The results provided beneficial effects on the treatment of splanchnic hypoperfusion following traumatic or burn shock.展开更多
Cubital tunnel syndrome is often accompanied by paresthesia in ulnar nerve sites and hand muscle atrophy. When muscle weakness occurs, or after failure of more conservative treatments, anterior transposition is used. ...Cubital tunnel syndrome is often accompanied by paresthesia in ulnar nerve sites and hand muscle atrophy. When muscle weakness occurs, or after failure of more conservative treatments, anterior transposition is used. In the present study, the ulnar nerve and its blood vessels were examined in the elbows of 18 adult cadavers, and the external diameter of the nutrient vessels of the ulnar nerve at the point of origin, the distances between the origin of the vessels and the medial epicondyle of the humerus, and the length of the vessels accompanying the ulnar nerve in the superior ulnar collateral artery, the inferior ulnar collateral artery, and the posterior ulnar recurrent artery were measured. Anterior transposition of the vascularized ulnar nerve was per- formed to treat cubital tunnel syndrome. The most appropriate distance that the vascularized ulnar nerve can be moved to the subcutaneous tissue under tension-free conditions was 1.8 ± 0.6 cm (1.1-2.5 cm), which can be used as a reference value during the treatment of cubital tunnel syndrome with anterior transposition of the vascularized ulnar nerve.展开更多
Microfil perfusion technique was used to investigate the blood supply of bronchogenic carcinoma deriving from pulmonary artery on 20 fresh specimens of lung cancer, including 11 squamous carcinoma, 6adenocarcinoma, 1 ...Microfil perfusion technique was used to investigate the blood supply of bronchogenic carcinoma deriving from pulmonary artery on 20 fresh specimens of lung cancer, including 11 squamous carcinoma, 6adenocarcinoma, 1 alveolar cell carcinoma and 2undifferentiated carcinoma cases. The results showed that the appearance and quantity of pulmonary blood supply of bronchogenic carcinoma depended on and changed with the site, activity,growth mode as well as the local condition of tumor nodules; pulmonary artery supplied blood to the Periphery of the tumor and its iunermost part as well; vessels from pulmonary artery in tumor nodules were generally less in number than those in the surrounding normal lung tissues around. The results suggested that the tumor blood supply from pulmonary artery should he evaluated comprehensively and dynamically; during interventional chemotherapy via pulmonary artery, patients should bc selected carefully and the catheter for infusion placed in suitable position so as to gain the best therapeutic effect.展开更多
AIM:To study the effect of moxibustion on Zusanli or Liangmeng point on gastric mucosa injury in stress-induced ulcer rats and its correlation with the expression of heat shock protein 70 (HSP70). METHODS:Sixty health...AIM:To study the effect of moxibustion on Zusanli or Liangmeng point on gastric mucosa injury in stress-induced ulcer rats and its correlation with the expression of heat shock protein 70 (HSP70). METHODS:Sixty healthy SD rats (30 males,30 females) were divided into control group,injury model group,Zushanli point group,Liangmeng point group. Stress gastric ulcer model was induced by binding cold stress method. Gastric mucosa ulcer injury (UI) index was calculated by Guth method. Gastric mucosa blood flow (GMBF) was recorded with a biological signal analyzer. Protein content and gene expression in gastric mucosal HSP70 were detected by immunohistochemistry (IHC) and reverse transcription polymerase chain reaction (RT-PCR). Thiobarbital method was used to determine malondialdehyde (MDA) content. Gastric mucosal endothelin (ET) and prostaglandin E2 (PGE2) were analyzed by radioimmunoassay. RESULTS:High gastric mucosal UI index,high HSP70 expression,low GMBF and PGF2,elevated MDA and ET were observed in gastric mucosa of rats subjected to cold stress. Moxibustion on Zusanli or Liangmeng point decreased rat gastric mucosal UI index,MDA and ET. Conversely,the expression of HSP70,GMBF,and PGE2 was elevated in gastric mucosa after pretreatment with moxibustion on Zusanli or Liangmeng point. The observed parameters were significantly different between Zusanli and Liangmeng points. CONCLUSION:Pretreatment with moxibustion on Zusanli or Liangmeng point protects gastric mucosa against stress injury. This protection is associated with the higher expression of HSP70 mRNA and protein,leading to release of PGE2 and inhibition of MDA and ET,impairment of gastric mucosal index.展开更多
In the model rat with precancerous lesion of stomach induced by the combined method of insertion of a spring into the pylorus and high salt hot paste,effects of San Qi (三七 Radix Notoginseng) on gastric secretion and...In the model rat with precancerous lesion of stomach induced by the combined method of insertion of a spring into the pylorus and high salt hot paste,effects of San Qi (三七 Radix Notoginseng) on gastric secretion and protective factors of stomach were investigated.The results indicated that gastric secretion,gastric mucosal blood flow (GMBF) and aminohexose content lowered significantly,and malondialdehyde (MDA) increased significantly (P<0.01) in the model group as compared with the normal group;after treatment with San Qi Powder for 12 weeks,both gastric secresion and GMBF increased,and MDA content decreased as compared with the negative control group (P<0.01),with no significant increase of aminohexose content.It is suggested that San Qi (三七 Radix Notoginseng) may improve gastric secretion,and that increase of GMBF and antagonism against the lesion of oxygen free radicals are possibly one of its mechanisms.展开更多
BACKGROUND In recent years,the detection rate of ground-glass nodules(GGNs)has been improved dramatically due to the popularization of low-dose computed tomography(CT)screening with high-resolution CT technique.This p...BACKGROUND In recent years,the detection rate of ground-glass nodules(GGNs)has been improved dramatically due to the popularization of low-dose computed tomography(CT)screening with high-resolution CT technique.This presents challenges for the characterization and management of the GGNs,which depends on a thorough investigation and sufficient diagnostic knowledge of the GGNs.In most diagnostic studies of the GGNs,morphological manifestations are used to differentiate benignancy and malignancy.In contrast,few studies are dedicated to the assessment of the hemodynamics,i.e.,perfusion parameters of the GGNs.AIM To assess the dual vascular supply patterns of GGNs on different histopathology and opacities.METHODS Forty-seven GGNs from 47 patients were prospectively included and underwent the dynamic volume CT.Histopathologic diagnoses were obtained within two weeks after the CT examination.Blood flow from the bronchial artery[bronchial flow(BF)]and pulmonary artery[pulmonary flow(PF)]as well as the perfusion index(PI)=[PF/(PF+BF)]were obtained using first-pass dual-input CT perfusion analysis and compared respectively between different histopathology and lesion types(pure or mixed GGNs)and correlated with the attenuation values of the lesions using one-way ANOVA,student’s t test and Pearson correlation analysis.RESULTS Of the 47 GGNs(mean diameter,8.17 mm;range,5.3-12.7 mm),30(64%)were carcinoma,6(13%)were atypical adenomatous hyperplasia and 11(23%)were organizing pneumonia.All perfusion parameters(BF,PF and PI)demonstrated no significant difference among the three conditions(all P>0.05).The PFs were higher than the BFs in all the three conditions(all P<0.001).Of the 30 GGN carcinomas,14 showed mixed GGNs and 16 pure GGNs with a higher PI in the latter(P<0.01).Of the 17 benign GGNs,4 showed mixed GGNs and 13 pure GGNs with no significant difference of the PI between the GGN types(P=0.21).A negative correlation(r=-0.76,P<0.001)was demonstrated between the CT attenuation values and the PIs in the 30 GGN carcinomas.CONCLUSION The GGNs are perfused dominantly by the PF regardless of its histopathology while the weight of the BF in the GGN carcinomas increases gradually during the progress of its opacification.展开更多
目的观察不同针灸介入时机对大脑中动脉供血区急性脑梗死神经功能预后的影响。方法回顾性选取2020年1月—2022年8月收治的116例大脑中动脉供血区急性脑梗死患者的临床资料进行分析,根据针灸介入时机分为两组。两组均进行静脉溶栓及常规...目的观察不同针灸介入时机对大脑中动脉供血区急性脑梗死神经功能预后的影响。方法回顾性选取2020年1月—2022年8月收治的116例大脑中动脉供血区急性脑梗死患者的临床资料进行分析,根据针灸介入时机分为两组。两组均进行静脉溶栓及常规药物治疗,观察组61例患者于发病72 h内给予针灸治疗,对照组55例患者于发病2周时给予针灸治疗。检测两组不同时间点侧支循环代偿情况、脑损伤标志物的水平,评估两组不同时间点简易精神状态检查(Mini-mental state examination,MMSE)评分、神经功能评分、Barthel指数(Barthel index,BI)评分、肢体运动功能评分、中医症状评分的差异,统计两组疗效。结果治疗前,两组侧支循环代偿情况比较,差异无统计学意义(P>0.05)。治疗4周和随访时,两组患侧大脑前动脉平均血流速度与对侧大脑中动脉平均血流速度的比值(Ratio of the average flow ve⁃locity of the affected anterior cerebral artery to the average flow velocity of the contralateral middle cerebral artery,iVACA/cVM⁃CA)较治疗前升高,观察组同时间点较对照组更高(P<0.05);两组患侧大脑后动脉平均血流速度与对侧大脑中动脉平均血流速度的比值(Ratio of the average flow velocity of the affected posterior cerebral artery to the average flow velocity of the contralateral middle cerebral artery,iVPCA/cVMCA)与治疗前比较,差异无统计学意义(P>0.05)。治疗前,两组脑损伤标志物比较,差异无统计学意义(P>0.05)。治疗4周和随访时,两组脑源性神经营养因子(Brain-derived neurotrophic factor,BDNF)较治疗前升高,观察组同时间点较对照组更高(P<0.05);两组钙结合蛋白β(Calcium binding proteinβ,S100β)、神经胶质纤维酸性蛋白(Glial fibrillary acid protein,GFAP)较治疗前下降,观察组同时间点较对照组更低(P<0.05)。治疗前,两组Fugl-Meyer评分、中医症状评分等相关评分比较,差异无统计学意义(P>0.05)。治疗4周和随访时,两组MMSE评分、BI评分及上肢和下肢Fugl-Meyer评分较治疗前升高,观察组同时间点较对照组更高(P<0.05);两组美国国立卫生院神经功能缺损(National institutes of health stroke scale,NIHSS)评分、中医症状评分较治疗前下降,观察组同时间点较对照组更低(P<0.05)。观察组总有效率为88.52%(54/61)高于对照组的72.73%(40/55),差异有统计学意义(P<0.05)。结论发病72h内采用针灸治疗可改善大脑中动脉供血区急性脑梗死脑损伤标志物的表达,改善脑血流,促进神经功能的恢复,有利于疾病的康复。展开更多
文摘BACKGROUND Renal angiomyolipoma and renal cell carcinoma are the most common benign and malignant tumors of the kidney respectively,and the preoperative differential diagnosis is crucial due to the wide difference in treatment methods.Fat-poor renal angiomyolipoma is a relatively rare type of in renal angiomyolipoma.Its fat imaging features are not obvious,and it is easily misdiagnosed as renal cell carcinoma.CASE SUMMARY We report the case of a 41-year-old man who complained of osphyalgia.Subsequent abdominal computed tomography scans revealed that a heterogeneous mass was seen in the lower pole of the right kidney,with the size of about 53 mm×47 mm.And showed two right renal arteries,with the mass supplied by an ectopic vessel from the abdominal aorta.Fluorescent laparoscopic blockade of the right renal heterotopic artery and partial nephrectomy was performed.Based on histological and immunohistochemical findings,the tumor was diagnosed as fatpoor renal angiomyolipoma.CONCLUSION The use of fluorescent laparoscopy can effectively help intraoperative management,and the fluorescence pattern provided by intravenous indocyanine green can help suggest the final diagnosis,effectively guide the surgical decisionmaking,and avoid preoperative imaging diagnosis leading to nephrectomy for benign renal tumors,through fluorescent navigation of tumor supply vessel precise block,minimize the loss of renal function.
文摘OBJECTIVE: To investigate the origin of blood supply to cavernous hemangioma of the liver (CHL). METHODS: To observe the relation of cavernous hemangioma of the liver to the hepatic artery and portal vein, we performed serial selective hepatic arteriography in 22 patients. Five patients after ligation of the right hepatic arteries underwent portography and liver staining by in jection of methylene blue into the portal veins and 2 patients had hepatic specimens resected, which were made into a model cast by filling the hepatic veins (yellow) and portal venous branches (blue) with methyl methacrylate after vascular lavage. RESULTS: Serial selective hepatic arteriography showed that hepatic arteries and hemangioma were displayed simultaneously, and that hemangioma was supplied by one to numerous arterial branches. In the portal phase of portography, contrast medium failed to enter the tumor and the intrahepatic branches of the portal vein were pushed aside by the tumor; in the liver parenchymal phase, however, the tumor appeared to be a low-density area. Hepatic arteriography and portography revealed that the fistula between the artery and portal vein may not be existed. The liver stained with methylene blue showed that the normal hepatic parenchyma could be stained with deep blue; in contrast, the tumor was not stained at all. The casting specimens showed that the eroded tumor left a round vacant area because of its total shedding, and no blue stained branches of the portal vein extended into the tumor. CONCLUSION: Blood supply of CHL may originate from the hepatic artery.
文摘Reported here are two cases of a modified Appleby operation for borderline resectable ductal adenocarcinoma of the pancreatic body, in one of which a R0 distal resection was attended to by excision, not only of the celiac axis, but also of the common and left hepatic arteries in the presence of arterial anatomic variation Michels, type Ⅷb. The possibility and avenues of the maintenance of the blood supply to the left hepatic lobe after surgical aggression of this kind are demonstrated employing computed tomography (CT) and 3-D CT angiography. Furthermore, both cases highlight all important worrisome aspects of pancreatic cancer resectability prediction.
文摘AIM: To investigate the role of intestinal mucosal blood flow (IMBF) and motility in the damage of intestinal mucosal barrier in rats with traumatic brain injury. METHODS: Sixty-four healthy male Wistar rats were divided randomly into two groups: traumatic brain injury (TBI) group (n = 32), rats with traumatic brain injury; and control group (n = 32), rats with sham-operation. Each group was divided into four subgroups (n = 8) as 6, 12, 24 and 48 h after operation. Intestinal motility was measured by the propulsion ratio of a semi-solid colored marker (carbon-ink). IMBF was measured with the laser-Doppler technique. Endotoxin and D-xylose levels in plasma were measured to evaluate the change of intestinal mucosal barrier function following TBI. RESULTS: The level of endotoxin was significantly higher in TBI group than in the control group at each time point (0.382 ± 0.014 EU/mL vs 0.102 ± 0.007 EU/mL, 0.466 ± 0.018 EU/mL vs 0.114 ± 0.021 EU/mL, 0.478± 0.029 EU/mL vs 0.112 ±- 0.018 EU/mL and 0.412± 0.036 EU/mL vs 0.108 ±0.011 EU/mL, P 〈 0.05). D-xylose concentrations in plasma in TBI group were significantly higher than in the control group (6.68 ± 2.37 mmol/L vs 3.66 ±1.07 retool/L, 8.51 ± 2.69 mmol/L vs 3.15 + 0.95 mmol/L, 11.68 ±3.24 mmol/L vs 3.78 ± 1.12 mmol/L and 10.23 ± 2.83 mmol/L vs 3.34 ± 1.23 mmol/L, P 〈 0.05). The IMBF in TBI group was significantly lower than that in the control group (38.5 ± 2.8 PU vs 45.6 ± 4.6 PU, 25.2 ± 3.1 PU vs 48.2 ± 5.3 PU, 21.5 ± 2.7 PU vs 44.9 ± 2.8 PU, 29. 4 ± 3.8 PU vs 46.7 ± 3.2 PU) (P 〈 0.05). Significant decelerations of intestinal propulsion ratio in T8I groups were found compared with the control group (0.48% ± 0.06% vs 0.62%± 0.03%, 0.37% ±0.05% vs 0.64% ± 0.01%, 0.39% ± 0.07% vs 0.63% =1= 0.05% and 0.46% ± 0.03% vs 0.65% ± 0.02%) (P 〈 0.05). CONCLUSION: The intestinal mucosal permeability is increased obviously in TBI rats. Decrease of intestinal motility and IMBF occur early in TBI, both are important pathogenic factors for stress-related damage of the intestinal mucosal barrier in TBI.
文摘AIM To investigate the source of blood supply of carvenous hemangioma of liver (CHL) and provide a feasibile treatment for CHL via hepatic artery. METHODS Ⅰ. Origin of blood supply of CHL: portovenography, hepatic arteriography and portal vein staining were performed in 5 patients. Two casts of hepatic blood vessels from resected specimen were observed. Ⅱ. Clinical data: Among 75 patients (30 males, 45 females, aged 25~57 years with a mean of 37 4). 56 were of solitary type (44 on the right lobe, 12 on the left with 4 having intraparenchymatoma) and 19 were of multiple type (9 on the right, 2 the left, 8 whole liver). Twenty two patients were treated by sclerosis, 50 by embolization via hepatic artery and 3 were excised. RESULTS In 5 cases with portography, the contrast medium did not enter the tumor, the tumor appeared as low denty area and the intrahepatic branches of portal vein were pushed aside. In 5 cases with portal vein staining, the normal liver parenchyma was stained deep blue, and the tumor was not stained. The tumor area appeared as a round vacant cavity in 2 specimen casts. In 72 patients treated with sclerosis a or embolization via hepatic artery or through interventional method, the tumors diminished by 10%~30% in diameter and no tumors grew larger. CONCLUSION The blood supply of CHL originates from the hepatic artery. Tumors treated with sclerosis and emblization decreased in size or got fiberized.
基金the Tenth Five-Year Key Project of PLA,No.01L081
文摘AIM: To determine if anisodamine is able to augment mucosal perfusion during gut I/R ischemia-reperfusion. METHODS: A jejunal sac was formed in Sprague Dawley rat. A Laser Doppler probe and a tonometer were inserted into the sac which was filled with saline. The superior mesenteric artery was occluded (SMAO)for 60 minutes followed by 90 minutes of reperfusion. At the end of 60 minutes of SMAO, either 0.2 mg/kg of anisodmine or dobutamine was injected into the jejunal sac. Laser Doppler mucosal blood flow and regional PCO2 (PrCO2)measurements were made. RESULTS: Mucosal blood flow was significantly increased at 30,60 and 90 minutes of reperfusion (R30, R60, R90) when intraluminal anisodamine or dobutamine was present compared to intraluminal saline only(44+/-3.3% or 48+/-4.1% vs 37+/-2.6% at R30, 57+/-5.0% or 56+/-4.7% vs 45+/-2.7% at R60, 64+/-3.3% or 56+/-4.2% vs 48+/-3.4% at R90,respectively P【0.05). Blood flow changes were also reflected by lowering of jejunal PrCO2 measurements after intraluminal anisodamine or dobutamine compared with that of the saline controls (41+/-3.1 mmHg or 44+/-3.0 mmHg vs 49+/-3.7 mmHg at R30,38+/-3.7 mmHg or 40+/-2.1 mmHg vs 47+/-3.8 mmHg at R60,34+/-2.1 mmHg or 39+/-3.0 mmHg vs 46+/-3.4 mmHg at R90, respectively, P【0.05). Most interesting finding was that there were significantly higher mucosal blood flow and lower jejunal PrCO2 in anisodamine group than those in dobutamine group at 90 minutes of reperfusion(64+/-3.3% vs 56+/-4.2% for blood flow or 34+/-2.1 mmHg vs 39+/-3.0 mmHg for PrCO2, respectively, P【0.05), suggesting that anisodamine had a more lasting effect on mucosal perfusion than dobutamine. CONCLUSION: Intraluminal anisodamine and dobutamine can augment mucosal blood flow during gut I/R and alleviate mucosal acidosis. The results provided beneficial effects on the treatment of splanchnic hypoperfusion following traumatic or burn shock.
基金supported by the Hunan Provincial Science and Technology Research Project Foundation for Colleges and Universities in China,No.12A119Construct Program of the Key Discipline in Hunan Province,China
文摘Cubital tunnel syndrome is often accompanied by paresthesia in ulnar nerve sites and hand muscle atrophy. When muscle weakness occurs, or after failure of more conservative treatments, anterior transposition is used. In the present study, the ulnar nerve and its blood vessels were examined in the elbows of 18 adult cadavers, and the external diameter of the nutrient vessels of the ulnar nerve at the point of origin, the distances between the origin of the vessels and the medial epicondyle of the humerus, and the length of the vessels accompanying the ulnar nerve in the superior ulnar collateral artery, the inferior ulnar collateral artery, and the posterior ulnar recurrent artery were measured. Anterior transposition of the vascularized ulnar nerve was per- formed to treat cubital tunnel syndrome. The most appropriate distance that the vascularized ulnar nerve can be moved to the subcutaneous tissue under tension-free conditions was 1.8 ± 0.6 cm (1.1-2.5 cm), which can be used as a reference value during the treatment of cubital tunnel syndrome with anterior transposition of the vascularized ulnar nerve.
文摘Microfil perfusion technique was used to investigate the blood supply of bronchogenic carcinoma deriving from pulmonary artery on 20 fresh specimens of lung cancer, including 11 squamous carcinoma, 6adenocarcinoma, 1 alveolar cell carcinoma and 2undifferentiated carcinoma cases. The results showed that the appearance and quantity of pulmonary blood supply of bronchogenic carcinoma depended on and changed with the site, activity,growth mode as well as the local condition of tumor nodules; pulmonary artery supplied blood to the Periphery of the tumor and its iunermost part as well; vessels from pulmonary artery in tumor nodules were generally less in number than those in the surrounding normal lung tissues around. The results suggested that the tumor blood supply from pulmonary artery should he evaluated comprehensively and dynamically; during interventional chemotherapy via pulmonary artery, patients should bc selected carefully and the catheter for infusion placed in suitable position so as to gain the best therapeutic effect.
基金Supported by National Natural Science Foundation, No. 30572310Hunan Natural Science Foundation, No. 05JJ 4008
文摘AIM:To study the effect of moxibustion on Zusanli or Liangmeng point on gastric mucosa injury in stress-induced ulcer rats and its correlation with the expression of heat shock protein 70 (HSP70). METHODS:Sixty healthy SD rats (30 males,30 females) were divided into control group,injury model group,Zushanli point group,Liangmeng point group. Stress gastric ulcer model was induced by binding cold stress method. Gastric mucosa ulcer injury (UI) index was calculated by Guth method. Gastric mucosa blood flow (GMBF) was recorded with a biological signal analyzer. Protein content and gene expression in gastric mucosal HSP70 were detected by immunohistochemistry (IHC) and reverse transcription polymerase chain reaction (RT-PCR). Thiobarbital method was used to determine malondialdehyde (MDA) content. Gastric mucosal endothelin (ET) and prostaglandin E2 (PGE2) were analyzed by radioimmunoassay. RESULTS:High gastric mucosal UI index,high HSP70 expression,low GMBF and PGF2,elevated MDA and ET were observed in gastric mucosa of rats subjected to cold stress. Moxibustion on Zusanli or Liangmeng point decreased rat gastric mucosal UI index,MDA and ET. Conversely,the expression of HSP70,GMBF,and PGE2 was elevated in gastric mucosa after pretreatment with moxibustion on Zusanli or Liangmeng point. The observed parameters were significantly different between Zusanli and Liangmeng points. CONCLUSION:Pretreatment with moxibustion on Zusanli or Liangmeng point protects gastric mucosa against stress injury. This protection is associated with the higher expression of HSP70 mRNA and protein,leading to release of PGE2 and inhibition of MDA and ET,impairment of gastric mucosal index.
文摘In the model rat with precancerous lesion of stomach induced by the combined method of insertion of a spring into the pylorus and high salt hot paste,effects of San Qi (三七 Radix Notoginseng) on gastric secretion and protective factors of stomach were investigated.The results indicated that gastric secretion,gastric mucosal blood flow (GMBF) and aminohexose content lowered significantly,and malondialdehyde (MDA) increased significantly (P<0.01) in the model group as compared with the normal group;after treatment with San Qi Powder for 12 weeks,both gastric secresion and GMBF increased,and MDA content decreased as compared with the negative control group (P<0.01),with no significant increase of aminohexose content.It is suggested that San Qi (三七 Radix Notoginseng) may improve gastric secretion,and that increase of GMBF and antagonism against the lesion of oxygen free radicals are possibly one of its mechanisms.
基金Supported by the National Natural Science Foundation of China,No.81671680.
文摘BACKGROUND In recent years,the detection rate of ground-glass nodules(GGNs)has been improved dramatically due to the popularization of low-dose computed tomography(CT)screening with high-resolution CT technique.This presents challenges for the characterization and management of the GGNs,which depends on a thorough investigation and sufficient diagnostic knowledge of the GGNs.In most diagnostic studies of the GGNs,morphological manifestations are used to differentiate benignancy and malignancy.In contrast,few studies are dedicated to the assessment of the hemodynamics,i.e.,perfusion parameters of the GGNs.AIM To assess the dual vascular supply patterns of GGNs on different histopathology and opacities.METHODS Forty-seven GGNs from 47 patients were prospectively included and underwent the dynamic volume CT.Histopathologic diagnoses were obtained within two weeks after the CT examination.Blood flow from the bronchial artery[bronchial flow(BF)]and pulmonary artery[pulmonary flow(PF)]as well as the perfusion index(PI)=[PF/(PF+BF)]were obtained using first-pass dual-input CT perfusion analysis and compared respectively between different histopathology and lesion types(pure or mixed GGNs)and correlated with the attenuation values of the lesions using one-way ANOVA,student’s t test and Pearson correlation analysis.RESULTS Of the 47 GGNs(mean diameter,8.17 mm;range,5.3-12.7 mm),30(64%)were carcinoma,6(13%)were atypical adenomatous hyperplasia and 11(23%)were organizing pneumonia.All perfusion parameters(BF,PF and PI)demonstrated no significant difference among the three conditions(all P>0.05).The PFs were higher than the BFs in all the three conditions(all P<0.001).Of the 30 GGN carcinomas,14 showed mixed GGNs and 16 pure GGNs with a higher PI in the latter(P<0.01).Of the 17 benign GGNs,4 showed mixed GGNs and 13 pure GGNs with no significant difference of the PI between the GGN types(P=0.21).A negative correlation(r=-0.76,P<0.001)was demonstrated between the CT attenuation values and the PIs in the 30 GGN carcinomas.CONCLUSION The GGNs are perfused dominantly by the PF regardless of its histopathology while the weight of the BF in the GGN carcinomas increases gradually during the progress of its opacification.
文摘目的观察不同针灸介入时机对大脑中动脉供血区急性脑梗死神经功能预后的影响。方法回顾性选取2020年1月—2022年8月收治的116例大脑中动脉供血区急性脑梗死患者的临床资料进行分析,根据针灸介入时机分为两组。两组均进行静脉溶栓及常规药物治疗,观察组61例患者于发病72 h内给予针灸治疗,对照组55例患者于发病2周时给予针灸治疗。检测两组不同时间点侧支循环代偿情况、脑损伤标志物的水平,评估两组不同时间点简易精神状态检查(Mini-mental state examination,MMSE)评分、神经功能评分、Barthel指数(Barthel index,BI)评分、肢体运动功能评分、中医症状评分的差异,统计两组疗效。结果治疗前,两组侧支循环代偿情况比较,差异无统计学意义(P>0.05)。治疗4周和随访时,两组患侧大脑前动脉平均血流速度与对侧大脑中动脉平均血流速度的比值(Ratio of the average flow ve⁃locity of the affected anterior cerebral artery to the average flow velocity of the contralateral middle cerebral artery,iVACA/cVM⁃CA)较治疗前升高,观察组同时间点较对照组更高(P<0.05);两组患侧大脑后动脉平均血流速度与对侧大脑中动脉平均血流速度的比值(Ratio of the average flow velocity of the affected posterior cerebral artery to the average flow velocity of the contralateral middle cerebral artery,iVPCA/cVMCA)与治疗前比较,差异无统计学意义(P>0.05)。治疗前,两组脑损伤标志物比较,差异无统计学意义(P>0.05)。治疗4周和随访时,两组脑源性神经营养因子(Brain-derived neurotrophic factor,BDNF)较治疗前升高,观察组同时间点较对照组更高(P<0.05);两组钙结合蛋白β(Calcium binding proteinβ,S100β)、神经胶质纤维酸性蛋白(Glial fibrillary acid protein,GFAP)较治疗前下降,观察组同时间点较对照组更低(P<0.05)。治疗前,两组Fugl-Meyer评分、中医症状评分等相关评分比较,差异无统计学意义(P>0.05)。治疗4周和随访时,两组MMSE评分、BI评分及上肢和下肢Fugl-Meyer评分较治疗前升高,观察组同时间点较对照组更高(P<0.05);两组美国国立卫生院神经功能缺损(National institutes of health stroke scale,NIHSS)评分、中医症状评分较治疗前下降,观察组同时间点较对照组更低(P<0.05)。观察组总有效率为88.52%(54/61)高于对照组的72.73%(40/55),差异有统计学意义(P<0.05)。结论发病72h内采用针灸治疗可改善大脑中动脉供血区急性脑梗死脑损伤标志物的表达,改善脑血流,促进神经功能的恢复,有利于疾病的康复。