Clinical Hemorheology and Microcirculation - Volume 78, issue 2

Authors: Zhang, Zheng | Zhao, Shuangshuang | Wang, Keke | Shang, Mengyuan | Chen, Zheming | Yang, Haizhen | Chen, Yanwei | Chen, Baoding

Article Type: Research Article

Abstract: Integrated analysis of accumulated data is an effective way to obtain reliable potential diagnostic molecular of cervical lymph node metastases (LNM) in papillary thyroid carcinoma (PTC). The benefits of prophylactic lymph node dissection (PLND) for these clinically node-negative (cN0) patients remained considerable controversies. Hence, elucidation of the mechanisms of LNM and exploration of potential biomarkers and prognostic indicators are essential for accurate diagnosis of LNM in PTC patients. Up to date, advanced microarray and bioinformatics analysis have advanced an understanding of the molecular mechanisms of disease occurrence and development, which are necessary to explore genetic changes and identify potential diagnostic …biomarkers. In present study, we performed a comprehensive analysis of the differential expression, biological functions, and interactions of LNM-related genes. Two publicly available microarray datasets GSE60542 and GSE129562 were available from Gene Expression Omnibus (GEO) database. Differentially expressed genes between clinically node-positive (cN1) and cN0 PTC samples were screened by an integrated analysis of multiple gene expression profile after gene reannotation and batch normalization. Our results identified 48 differentially expressed genes (DEGs) genetically associated with LNM in PTC patients. Gene ontology (GO) analyses revealed the changes in the modules were mostly enriched in the regulation of MHC class II receptor activity, the immune receptor activity, and the peptide antigen binding. Kyoto encyclopedia of genes and genomes (KEGG) enrichment analysis of DEGs displayed the intestinal immune network for IgA production, staphylococcus aureus infection, and cell adhesion molecules (CAMs). To screen core genes related to LNM of PTC from the protein-protein interaction network, top 10 hub genes were identified with highest scores. Our results help us understand the exact mechanisms underlying the metastasis of cervical LNM in PTC tissues and pave an avenue for the progress of precise medicine for individual patients. Show more

Keywords: Lymph node metastasis (LNM), papillary thyroid carcinoma (PTC), hub genes, protein-protein interaction network (PPI)

DOI: 10.3233/CH-201074

Citation: Clinical Hemorheology and Microcirculation, vol. 78, no. 2, pp. 117-126, 2021

Authors: Hao, Yan | Song, Kexin | Zhang, Mingzi | Liu, Hao | Qi, Zheng | Feng, Cheng | Wang, Youbin

Article Type: Research Article

Abstract: OBJECTIVE: Here we examined the influence of methane-rich saline treatment (MS) on the whole transcriptome of the skin flaps during the ischemia/reperfusion (I/R) injuryusing RNA-sequence (RNA-seq). METHODS: The rats were divided into three groups: the sham surgery group (SH),the I/R surgery group treated with physiological saline (I/R-P) or the I/R surgery group treated with the methane-rich saline (I/R-M) respectively. On the 72 hours after operation, the perfusion and the distribution of micro-circulatoryblood flow in skin flaps were observed by laser doppler flowmeters. The whole transcriptome alteration of the skin flaps was examined using RNA-seq. Moreover, the responses of …the skin flaps to MRS treatment were examined using bio-informatic and q-PCR approaches after I/R injury. RESULTS: The methane-rich saline (MS) treatment could expand survival area and improve the blood perfusion of the skin flaps after l/R injury. Compared to the I/R-P group, 474 genes significantly altered in the I/R-M group. These genes were mainly associated the development, the cell adhesion and migration. In addition, the PI3K-Akt signal pathway was meaningfully related to regulation of MS treatment. Q-PCR results confirmed that MS treatment positively regulated PI3K-Akt signal pathway relative genes and inhibited the cell adhesion relative genes. CONCLUSION: These results proved that methane-rich saline may alleviate I/R injury and improve flap survival rate by regulating cell adhesion and PI3K-Akt signal pathway. Show more

Keywords: Methane-rich saline, ischemia/reperfusion injury, skin flaps, cell adhesion, PI3K-Akt signal pathway

DOI: 10.3233/CH-201046

Citation: Clinical Hemorheology and Microcirculation, vol. 78, no. 2, pp. 127-138, 2021

Authors: Yang, Wen-qi | Cui, Xiao-lan | Zhang, Ming | Yuan, Xiao-dong | Ying, Liang | Li, Feng-hua | Li, Hong-li

Article Type: Research Article

Abstract: OBJECTIVE: To assess iliac blood vessels using conventional ultrasound (US) and contrast-enhanced ultrasonography (CEUS) before kidney transplantation (KT) and determine whether US findings related to post-transplant outcomes. METHODS: A total of 119 patients received US and CEUS before KT waiting-list acceptance. The preoperative iliac blood hemodynamics and vascular conditions were evaluated. The operative strategy and follow-up outcomes were recorded. Logistic regression and correlation analysis were used. The accuracy in determining the patency of iliac blood vessels was calculated before and after the injection of contrast materials. RESULTS: CEUS can help to significantly improve the visualization of …the internal iliac artery, but there was no significant correlation with post-transplant outcomes. In terms of accuracy, there were significant differences in determining the patency of internal iliac arteries between conventional US and CEUS (60.5% and 100%, p  < 0.001). The surgical strategy of one patient was regulated and two patients were excluded from KT according to US findings. CONCLUSIONS: Compared with conventional US, CEUS helps to improve the visualization of the internal iliac artery. Conventional US and CEUS have the potential to serve as effective methods to evaluate anatomy and hemodynamics of iliac vessels and have a potential value while defining clinical algorithms in surgery decision-making. Show more

Keywords: Contrast-enhanced ultrasonography, ultrasound, kidney transplantation, iliac artery

DOI: 10.3233/CH-201054

Citation: Clinical Hemorheology and Microcirculation, vol. 78, no. 2, pp. 139-149, 2021

Authors: Krüger-Genge, A. | Steinbrecht, S. | Jung, C.G.H. | Westphal, Sophia | Klöpzig, Stefanie | Waldeck, P. | Küpper, J.-H. | Storsberg, J. | Jung, F.

Article Type: Research Article

Abstract: Within the last years a comprehensive number of scientific studies demonstrated beneficial effect of Arthropira platensis (AP ) as dietary supplement due to a high content of proteins, minerals and vitamins. Positive effects like promoting the immune system, reducing inflammation and an anti-oxidant capacity are reported. In this study, the effect of an aqueous AP extract on primary human venous endothelial cells (HUVEC) was investigated. In addition, the effect of AP on HUVEC treated with a bacterial toxin (lipopolysaccharide, LPA), inducing an activation of HUVEC and cellular detachment, was analyzed. Depending on the concentration of AP …extract a significantly accelerated formation of an endothelial cell monolayer was observed. Furthermore, the detachment of HUVEC after LPA addition was dramatically reduced by AP . In conclusion, the data are promising and indicatory for an application of Arthrospira platensis in the clinical field. Show more

Keywords: Arthrospira platensis, endothelial cells, xCELLigence system

DOI: 10.3233/CH-201096

Citation: Clinical Hemorheology and Microcirculation, vol. 78, no. 2, pp. 151-161, 2021

Authors: Zhang, Wei-Bing | Xu, Wen | Fu, Wen-Jie | He, Bei-Li | Liu, Hua | Deng, Wen-Fang

Article Type: Research Article

Abstract: OBJECTIVE: To compare the diagnostic efficacy of ACR TI-RADS, Kwak TI-RADS, ATA guidelines and KTA/KSThR guidelines in combination with shear wave elastography (SWE) for thyroid nodules. METHODS: The retrospective study included 566 thyroid nodules with maximum diameter≥5 mm which confirmed by FNA cytology or/and surgical pathology. The sensitivity, specificity, accuracy, Youden index of diagnosis of thyroid nodules by ACR TI-RADS, Kwak TI-RADS, ATA guidelines, KTA/KSThR guidelines and SWE were calculated. The ROC curve was drawn to determine the cut-off values of the four ultrasound classification systems and SWE Emax. The diagnostic efficacy of the four ultrasound classification systems …in combination with SWE were calculated and compared with those of pre-combination. RESULTS: The ROC curves indicated that the cut-off value of ACR TI-RADS, Kwak TI-RADS, ATA guidelines, KTA/KSThR guidelines and Emax of SWE was TR5, 4c, high-suspicion, high-suspicion, and 41.7 kPa, respectively, and the area under the ROC curve (AUC) was 0.907(0.879–0.934), 0904(0.876–0.932), 0.894(0.863–0.924), 0.888(0.856–0.919), 0.886(0.859–0.913), respectively. After combination with SWE, the the sensitivities of the four ultrasound classification systems for the diagnosis of nodules were improved, and the differences were statistically significant (all P ≤0.001); the specificities were decreased, but the differences were not statistically significant (all P  > 0.05); the accuracies were improved, but only the difference of ACR TI-RADS was statistically significant (x2  = 4.45, P  = 0.035); the differences in the AUCs were not significant (all P  > 0.05). CONCLUSIONS: The four ultrasound classification systems and SWE all had high performance in the diagnosis of thyroid nodules. The four classification systems in combination with SWE were all beneficial to the differential diagnosis of nodules, and ACR TI-RADS in combination with SWE was more effective, especially for TR3 and TR4 nodules. Show more

Keywords: Thyroid nodules, thyroid ultrasound classification system, thyroid imaging reporting and data system, shear wave elastography

DOI: 10.3233/CH-201021

Citation: Clinical Hemorheology and Microcirculation, vol. 78, no. 2, pp. 163-174, 2021

Authors: Wu, Junyuan | Li, Zhiwei | Yuan, Wei | Zhang, Qiang | Liang, Yong | Zhang, Mingqing | Qin, Hongjie | Li, Chunsheng

Article Type: Research Article

Abstract: BACKGROUND: Shenfu injection (SFI) is a traditional Chinese herbal medicine which has been clinically used for treatment of septic shock and cardiac shock. The aim of this study was to clarify effects of SFI on cerebral microcirculation and brain injury after hemorrhagic shock (HS). METHODS: Twenty-one domestic male Beijing Landrace pigs were randomly divided into three groups: SFI group (SFI, n  = 8), saline group (SA, n  = 8) or sham operation group (SO, n  = 5). In the SFI group, animals were induced to HS by rapid bleeding to a mean arterial pressure of 40 mmHg within 10 minutes and maintained …at 40±3 mmHg for 60 minutes. Volume resuscitation (shed blood and crystalloid) and SFI were given after 1 hour of HS. In the SA group, animals received the same dose of saline instead of SFI. In the SO group, the same surgical procedure was performed but without inducing HS and volume resuscitation. The cerebral microvascular flow index (MFI), nitric oxide synthase (NOS) expression, aquaporin-4 expression, interleukin-6, tumor necrosis factor-α (TNF-α) and ultrastructural of microvascular endothelia were measured. RESULTS: Compared with the SA group, SFI significantly improved cerebral MFI after HS. SFI up regulated cerebral endothelial NOS expression, but down regulated interleukin-6, TNF-α, inducible NOS and aquaporin-4 expression compared with the SA group. The cerebral microvascular endothelial injury and interstitial edema in the SFI group were lighter than those in the SA group. CONCLUSIONS: Combined application of SFI with volume resuscitation after HS can improve cerebral microcirculation and reduce brain injury. Show more

Keywords: Hemorrhagic shock, shenfu injection, microcirculation, microvascular endothelium, brain injury

DOI: 10.3233/CH-211100

Citation: Clinical Hemorheology and Microcirculation, vol. 78, no. 2, pp. 175-185, 2021

Authors: Barath, Barbara | Somogyi, Viktoria | Tanczos, Bence | Varga, Adam | Bereczky, Zsuzsanna | Nemeth, Norbert | Deak, Adam

Article Type: Research Article

Abstract: BACKGROUND: Red blood cell (RBC) aggregation plays an important role in the physiological processes of the microcirculation. The complete mechanism of aggregation is still unclear, and it is influenced by several cellular and plasmatic factors. One of these factors is the hematocrit (Hct). OBJECTIVE: We hypothesized that the relation of RBC aggregation and Hct differs between species. METHODS: From anticoagulated blood samples of healthy volunteers, rats, dogs, and pigs, 20, 40, and 60 %Hct RBC, autologous plasma suspensions were prepared. Hematological parameters and RBC aggregation was determined by light-transmission and light-reflection method. RESULTS: Suspensions …at 20%and 60%Hct expressed lower RBC aggregation than of 40%Hct suspensions, showing inter-species differences. By curve fitting the Hct at the highest aggregation value differed in species (human: 45.25%- M 5 s, 40.86%- amp; rat: 44.44 %- M1 10 s, 39.37%- amp; dog: 42.48%- M 5 s, 44.29%- amp; pig: 47.63%- M 5 s, 52.8%- amp). CONCLUSION: RBC aggregation - hematocrit relation shows inter-species differences. Human blood was found to be the most sensitive for hematocrit changes. The more obvious differences could be detected by M 5 s by light-transmission method and amplitude parameter using light-reflection method. Show more

Keywords: Hemorheology, red blood cell aggregation, hematocrit, inter-species differences

DOI: 10.3233/CH-211109

Citation: Clinical Hemorheology and Microcirculation, vol. 78, no. 2, pp. 187-198, 2021

Authors: Chen, Ye | Wang, Shouhong | Huang, Jianrong | Fu, Yingyun | Wen, Juanmin | Zhou, Chengbin | Fu, Yang | Liu, Lei

Article Type: Case Report

Abstract: INTRODUCTION: Coronavirus disease-19 (COVID-19) is a new type of epidemic pneumonia caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The population is generally susceptible to COVID-19, which mainly causes lung injury. Some cases may develop severe acute respiratory distress syndrome (ARDS). Currently, ARDS treatment is mainly mechanical ventilation, but mechanical ventilation often causes ventilator-induced lung injury (VILI) accompanied by hypercapnia in 14% of patients. Extracorporeal carbon dioxide removal (ECCO2R) can remove carbon dioxide from the blood of patients with ARDS, correct the respiratory acidosis, reduce the tidal volume and airway pressure, and reduce the incidence of VILI. …CASE REPORT: Two patients with critical COVID-19 combined with multiple organ failure undertook mechanical ventilation and suffered from hypercapnia. ECCO2R, combined with continuous renal replacement therapy (CRRT), was conducted concomitantly. In both cases (No. 1 and 2), the tidal volume and positive end-expiratory pressure (PEEP) were down-regulated before the treatment and at 1.5 hours, one day, three days, five days, eight days, and ten days after the treatment, together with a noticeable decrease in PCO2 and clear increase in PO2, while FiO2 decreased to approximately 40%. In case No 2, compared with the condition before treatment, the PCO2 decreased significantly with down-regulation in the tidal volume and PEEP and improvement in the pulmonary edema and ARDS after the treatment. CONCLUSION: ECCO2R combined with continuous blood purification therapy in patients with COVID-19 who are criti-cally ill and have ARDS and hypercapnia might gain both time and opportunity in the treatment, down-regulate the ventilator parameters, reduce the incidence of VILI and achieve favorable therapeutic outcomes. Show more

Keywords: Coronavirus disease-19, multiple organ failure, hypercapnia, continuous blood purification, extracorporeal carbon dioxide removal

DOI: 10.3233/CH-201080

Citation: Clinical Hemorheology and Microcirculation, vol. 78, no. 2, pp. 199-207, 2021

Authors: Guan, Pei-Shan | Yuan, Hai-Xia | Wang, Wen-Ping

Article Type: Case Report

Abstract: Gallbladder cancer is a malignant tumor with high mortality. Early diagnosis is significance to improve the prognosis of patients. Gallbladder adenoma is recognized as a kind of precancerous disease, for the past few years, contrast-enhanced ultrasound was used in the diagnosis of biliary tumors. This case is about gallbladder papillary adenoma with carcinogenesis. There is rare literature on the contrast-enhanced ultrasound manifestations of this type of disease. We hope that this report can help improve the recognition of contrast-enhanced ultrasound features and improve the accuracy of early diagnosis of gallbladder cancer.

Keywords: Gallbladder cancer, papillary adenoma, carcinogenesis, contrast-enhanced ultrasound

DOI: 10.3233/CH-200940

Citation: Clinical Hemorheology and Microcirculation, vol. 78, no. 2, pp. 209-214, 2021

Authors: Zhang, Hui-Li | Zhu, Jing-E | Li, Jia-Xin | Li, Xiao-Long | Sun, Li-Ping | Xu, Hui-Xiong | Yu, Song-Yuan

Article Type: Case Report

Abstract: A 33 years’ old male complained of excessive salivation with frequent swallowing and spitting, which resulted in communication disturbance, reduced quality of life, and social embarrassment for 19 years. He had been diagnosed as sialorrhea and submandibular gland hyperfunction by stomatologist, then had unilateral submandibular gland resection 13 years ago, but the symptom relief was not satisfactory. After that, he had been treated with glycopyrrolate for less than a year, which was withdrawn because of the short duration of symptomatic control after each tablet take-in and intolerable side effects. With the wish to receive a new treatment with long term …effectiveness, low re-operation risk and normal preserved saliva secretion function, the patient was subject to MWA for the right submandibular gland. After systematic clinical evaluation, US-guided percutaneous MWA was successfully performed with an uneventful post-operative course. The volume of the right submandibular gland and ablated area were measured precisely by an ablation planning software system with automatic volume measurement function based on three-dimensional reconstruction of the pre-operative and post-operative enhanced magnetic resonance imaging (MRI) raw data. Finally, the ablated volume was calculated as 62.2% of the whole right submandibular gland. The patient was discharged 1 day after the operation, with symptoms relieved significantly, the mean value of whole saliva flow rate (SFR) decreased from 11 ml to 7.5 ml per 15 minutes. During the follow up by phone three months after operation, the patient reported that the treatment effect was satisfactory, whereas the SFR value became stable as 7 ml per 15 minutes, drooling frequency and drooling severity (DFDS) score decreased from 6 to 5, drooling impact scale (DIS) score decreased from 43 to 26. US-guided percutaneous MWA of submandibular gland seems to be an alternative, minimal invasive, and effective treatment for refractory sialorrhea. We described a patient with refractory sialorrhea treated successfully with ultrasound (US) guided percutaneous microwave ablation (MWA). Show more

DOI: 10.3233/CH-211115

Citation: Clinical Hemorheology and Microcirculation, vol. 78, no. 2, pp. 215-226, 2021