Construction of iPSC-derived Inhibitory Neural Network Tissue with Synaptic Transmission Potentials / 中山大学学报(医学科学版)

ObjectiveDirected differentiation of human induced pluripotent stem cells （hiPSCs） into spinal cord γ-aminobutyric acid （GABA）-ergic progenitor cells were implanted into an decellularized optical nerve （DON） bioscaffold to construct a hiPSC-derived inhibitory neural network tissue with synaptic activities. This study aimed to provide a novel stem cell-based tissue engineering product for the study and the repair of central nervous system injury. MethodsThe combination of stepwise directional induction and tissue engineering technology was applied in this study. After hiPSCs were directionally induced into human neural progenitor cells （hNPCs） in vitro， they were seeded into a DON for three-dimensional culture， allowing further differentiation into inhibitory GABAergic neurons under the specific neuronal induction environment. Transmission electron microscopy and whole cell patch clamp technique were used to detect whether the hiPSCs differentiated neurons could form synapse-like structures and whether these neurons had spontaneous inhibitory postsynaptic currents， respectively， in order to validate that the hiPSC-derived neurons would form neural networks with synaptic transmission potentials from a structural and functional perspective. ResultsThe inhibitory neurons of GABAergic phenotype were successfully induced from hiPSCs in vitro， and maintained good viability after 28 days of culture. With the transmission electron microscopy， it was observed that many cell junctions were formed between hiPSC-derived neural cells in the three-dimensional materials， some of which presented a synapse- like structure， manifested as the slight thickness of cell membrane and a small number of vesicles within one side of the cell junctions， the typical structure of a presynatic component， and focal thickness of the membrane of the other side of the cell junctions， a typical structure of a postsynaptic component. According to whole-cell patch-clamp recording， the hiPSC-derived neurons had the capability to generate action potentials and spontaneous inhibitory postsynaptic currents were recorded in this biotissue. ConclusionsThe results of this study indicated that hiPSCs can be induced to differentiate into GABAergic progenitor cells in vitro and can successfully construct iPSC-derived inhibitory neural network tissue with synaptic transmission after implanted into a DON for three-dimensional culture. This study would provide a novel neural network tissue for future research and treatment of central nervous system injury by stem cell tissue engineering technology.

Development and clinical application of a new reduction device for the treatment of tibial plateau fracture under arthroscopic monitoring / 中国骨伤

OBJECTIVE@#To develop a reduction device for the arthroscopy-assisted treatment of tibial plateau fracture and explore its clinical efficacy.@*METHODS@#From May 2018 to September 2019, 21 patients with tibial plateau fracture were treated, including 17 males and 4 females. Their ages ranged from 18 to 55 years old with an average of (38.6±8.7) years old. There were 5 cases of Schatzker typeⅡand 16 cases of Schatzker type Ⅲ. The self-designed reductor combined with arthroscope was used for auxiliary reduction and fixation(minimally invasive percutaneous plate osteosynthesis). The efficacy was analyzed by observing the operation time, blood loss, fracture healing time and knee function(HSS and IKDC scoring criteria).@*RESULTS@#All the 21 patients were followed up for 8 to 24 with an average of(14.0±3.1) months. The operative time ranged from 70 to 95 min with an average of(81.7±7.6)min, incision length ranged from 4 to 7 cm with an average of(5.3±0.9) cm, intraoperative blood loss ranged from 20 to 50 ml with an average of(35.3±5.2) ml, postoperative weight-bearing time ranged from 30 to 50 d with an average of(35.1±9.2) d, fracture healing time ranged from 65 to 90 d with an average of(75.0±4.4) d, and complications were 0 cases, respectively. The fracture was well healed and no screw plate fracture was observed. The knee function scores of HSS and IKDC 18 months after operation were significantly higher than those before operation(P<0.05).@*CONCLUSION@#The custom-made reduction tool for the arthroscopic management of tibial plateau fracture is reasonable in design and simple in operation. The specific reduction tool could effectively reduce the fracture, and shorten the fixation time with minimally invasive procedure.

Quality evaluation of Commelina communis from different origins based on multicomponent content determination combined with chemometrics / 中国中药杂志

This research established a high-performance liquid chromatography(HPLC) method for simultaneous determination of isoorientin, orientin, vitexin, and isovitexin in Commelina communis to conduct content difference analysis and quality evaluation of 62 batches of C. communis from different origins. The HPLC content determination was performed on a Dikma Platisil ODS chromatographic column(4.6 mm×250 mm, 5 μm), with acetonitrile-0.1% formic acid(14∶86) as the mobile phase. The detection wavelength was set at 348 nm, the flow rate was 1.0 mL·min~(-1), and the column temperature was 35 ℃. The differences in origins and quality of 62 batches of C. communis were studied by chemometrics. The results showed that the determination of four components mani-fested a good linear relationship in the range of mass concentration(r>0.999 9), and the average recovery rate was 96.17%-103.0%. The relative standard deviations(RSDs) of precision, stability, and repeatability were all less than 2.0%. The content of four components from high to low was isoorientin>isovitexin>orientin>vitexin. Forty-seven batches of C. communis with clear origins were classified into six categories by chemometrics. C. communis from different origins had different qualities. Generally, C. communis from Western China, Central China, and South of China had superior qualities. The HPLC method established in this study is specific, simple, and efficient, which provides references for the comprehensive evaluation of the quality of C. communis. The chemometrics shows that the qualities of C. communis from different origins are largely different. Isoorientin can be used as an index to determine the content of C. communis, and its content limit should be set no less than 0.023%.

SUN Shen-tian's clinical experience in treating Tourette's syndrome with acupuncture / 中国针灸

To introduce the clinical experience of professor SUN Shen-tian in treatment of Tourette's syndrome (TS) with acupuncture. TS is a psychosomatic disease and the core pathogenesis refers to blood deficiency producing internal wind. The disease is located in the heart and liver. Acupoints are selected according to the functional orientation of the cerebral cortex. The extrapyramidal system area is preferred for tic disorder, and the emotional area is for behavioral disorder. The treatment focuses on regulating the mind by multiple methods, including manual needling technique used the transcranial repeated acupuncture, and regulating the mind by taking multiple acupoints, Baihui (GV 20), Neiguan (PC 6), Shenmen (HT 7) and Dazhong (KI 4) are stimulated. For abdominal twitching and mental symptoms of TS children, the first and third abdominal areas are selected. The target symptoms (biao) are treated specially by local acupoints, the combination of the starting and ending acupoints of the affected meridian, or the acupoints of the meridians with same name. The modified chaihu longgu muli decoction and siwu decoction are prescribed to sooth liver, nourish blood and soothe wind. In association with the characteristics and target symptoms of TS, the sequential therapy is used with filiform needling, intradermal needling, Chinese herbal medication and psychotherapy.

GAO Wei-bin's clinical experience in treatment of neurogenic bladder with acupuncture / 中国针灸

The paper introduces GAO Wei-bin's clinical experience in acupuncture treatment for neurogenic bladder. In association with the etiology, the location and types of neurogenic bladder and in accordance with nerve anatomy and meridian differentiation, the acupoints are selected accurately in treatment. Four acupoint prescriptions are allocated. For frequent urination and urinary incontinence, the foot-motor-sensory area of scalp acupuncture, Shenshu (BL 23) and Huiyang (BL 35) are used. For all kinds of urine retention, especially the patients who are not suitable for acupuncture at the lumbar region, Zhongji (CV 3), Qugu (CV 2), Henggu (KI 11) and Dahe (KI 12) are selected. For all kinds of urine retention, Zhongliao (BL 33) and Ciliao (BL 32) are applicable. For the patients with both dysuria and urinary incontinence, Zhongliao (BL 33), Ciliao (BL 32) and Huiyang (BL 35) are chosen. In treatment of neurogenic bladder, both biao (root causes) and ben (primary symptoms) are considered, as well as the accompanying symptoms; and electroacupuncture is combined accordingly. During the delivery of acupuncture, the sites where the acupoints located are detected and palpated so as to rationally control the depth of needle insertion and the operation of reinforcing and reducing needling techniques.

Construction of hiPSC-derived Excitatory Neural Network-like Tissue / 中山大学学报(医学科学版)

ObjectiveTo construct a neural network-like tissue with the potential of synaptic formation in vitro by seeding human induced pluripotent stem cell-derived neural precursor cells （hiPSC-NPCs） on decellularized optic nerve （DON）， so as to provide a promising approach for repair of nerve tissue injury. MethodsThrough directional induction and tissue engineering technology， human induced pluripotent stem cells （hiPSCs） and 3D DON scaffolds were combined to construct neural network-like tissues. Then the hiPSCs were directionally induced into human neural precursor cells （hNPCs） and neurons. Immunofluorescence staining was used to identify cell differentiation efficiency. 3D DON scaffolds were prepared. Morphology and cytocompatibility of scaffolds were identified by scanning electron microscopy and Tunnel staining. Induced hiPSC-NPCs were seeded on DON scaffolds. Immunofluorescence staining， scanning electron microscopy， transmission electron microscopy and patch clamp were used to observe the morphology and functional identification of constructed neural network tissues. Results①The results of immunofluorescence staining suggested that most of hiPSC-NPCs differentiated into neurons in vitro. We had successfully constructed a neural network dominated by neurons. ② The results of scanning electron microscopy and immunohistochemistry suggested that a neural network-like tissue with predominating excitatory neurons in vitro was successfully constructed. ③The results of immunohistochemical staining， transmission electron microscopy and patch clamp indicated that the neural network-like tissue had synaptic transmission function. ConclusionA neural network-like tissue mainly composed of excitatory neurons has been constructed by the combination of natural uniform-channel DON scaffold and hiPSC-NPCs， which has the function of synaptic transmission. This neural network plays a significant role in stem cell derived replacement therapy， and offers a promising prospect for repair of spinal cord injury （SCI） and other neural tissue injuries.

Transcatheter closure of rare type Ⅱ Abernethy malformation with pulmonary hypertension in children： A case report / 临床肝胆病杂志

Abernethy malformation， also known as congenital portosystemic shunts， is rare in clinical practice， with less than 300 cases reported in the global literature up to 2019. The disease can have serious complications such as pulmonary hypertension， liver tumor， and liver failure and tends to have an extremely poor prognosis， and early diagnosis and active and effective treatment can reduce and delay the onset of complications. In this case， portography combined with balloon occlusion helped to display the underdeveloped slender portal vein with dysplasia， so that the child who was formerly misdiagnosed with type Ⅰ Abernethy malformation was diagnosed with type Ⅱ Abernethy malformation， and then the child was successfully treated by transcatheter closure. This article gives a detailed report of this case.

Comparison of the detection rates of colorectal cancer liver metastasis using different MRI sequences and enhanced CT / 中华肝胆外科杂志

Objective:To study the detection rates of using different MRI sequences and enhanced CT in colorectal cancer liver metastasis (CRLM).Methods:The imaging data of CRLM patients who were treated at Peking University Third Hospital from March 2018 to September 2021 were retrospectively analyzed. Sixty-six CRLM lesions with a maximum diameter ≤10 mm were selected. Different MRI sequences such as T 1 weighted imaging (T 1WI), T 2 weighted imaging (T 2WI), diffusion weighted imaging (DWI), dynamic enhanced phase of MRI (MR-Dyn), gadolinium-etoxybenzyl-diethylenetriaminepentaacetic acid (Gd-EOB-DTPA), enhanced hepatobiliary phase of MRI (HBP) and CT enhancement phase (CT-Dyn) were reviewed independently to determine whether the target lesions were detected. The pathological results were used as the gold standard. Paired chi-square test was used to compare the detection rate of CRLM in each group. Results:Among the 66 liver metastases, 15, 31, 55, 21, 56 and 20 were detected by T 1WI, T 2WI, DWI, MR-Dyn, HBP and CT-Dyn, respectively. Their detection rates were 22.7%, 47.0%, 83.3%, 31.8%, 84.8% and 30.3%, respectively. The detection rates of HBP and DWI were higher than those of T 2WI, MR-Dyn, CT-Dyn and T 1WI, respectively (all P<0.05). The detection rate of T 2WI was higher than that of MR-Dyn, CT-Dyn and T 1WI (all P<0.05). The detection efficiencies of non-contrast MRI and Gd-EOB-DTPA enhanced MRI for CRLM were highly consistent ( Kappa=0.745). Conclusions:The detection rates of HBP, DWI and T 2WI for CRLM were high. Non-contrast MRI could replace Gd-EOB-DTPA enhanced MRI for detection of large CRLM.

Prospects and reflections on the research and development of next-generation malaria vaccines / 中国血吸虫病防治杂志

Vaccination is one of the most effective intervention for the containment and elimination of infectious diseases. Recently, the world’s first malaria vaccine RTS, S/AS01 was approved by WHO for use among children living in moderately and highly malaria endemic areas of Africa, which brings a hope for the research and development of malaria vaccines. Here, we review the current status of malaria vaccines development and provide a perspective on the development of next-generation malaria vaccines, so as to provide insights into the successful development of malaria vaccines.

Fibrinogen gamma-chain mutation, p.Ile171His, leads to hereditary hypofibrinogenemia / 中华内科杂志

Objective:To explore the clinical phenotype and genotype of a family with hereditary hypofibrinogenemia.Methods:Activated partial thrombin time (APTT), prothrombin time (PT),thrombin time (TT) and thrombelastogram (TEG) were tested in all family members. Fibrinogen activity and antigen were detected by Clauss method and immunoturbidimetric method respectively. All exons and flanking sequences of fibrinogen FGA,FGB,FGG genes were analyzed by PCR, and the products were subjected to Sanger sequencing.Results:The proband represented prolonged PT and TT, low Fg activity and antigen, elevated K value and decreased Angle value in TEG. Other family members reported similar changes including proband′s father,daughter and son, and his elder brother and his niece. Exon 5 c.510_512 of FGG gene in the proband revealed a minor deletion mutation.Conclusion:The novel heterozygous missense mutation of exon 5 c.510_512del (Gln170_Ile171 del ins His) of FGG gene is the molecular mechanism that leads to hereditary hypofibrinogenemia in this family.

Analysis of flavonoids and phenylethanoid glycosides in the Tibetan herb Lagotis brevituba Maxim based on UHPLC-LTQ-orbitrap-MS / 药学学报

Ultra high performance liquid chromatography tandem linear ion trap orbitrap mass spectrometry (UHPLC-LTQ-orbitrap-MS) was applied to analyze and identify flavonoids and phenylethanoid glycosides in the Tibetan herb Lagotis brevituba Maxim. A method of data-dependent scan coupling with dynamic exclusion was developed for analyzing flavonoids and phenylethanoid glycosides under positive and negative ion mode of electrospray ionization (ESI). The compounds of Lagotis brevituba Maxim. were systematically identified through exact molecular mass, fragmentation patterns, retention time and reported references. A total of 167 compounds were detected, of which 84 were flavonoids and 83 were phenylethanoid glycosides, which greatly enriched the number and types of flavonoids and phenylethanol glycosides in Lagotis genus medicinal plants. Baohuoside Ⅰ, 4 disaccharide O-glycoside flavonoids (composed of deoxyhexose and glucuronic acid), 9 C-glycoside flavonoids, 15 tetrasaccharide phenylethanoid glycosides and 5 phenylethanoid glycosides with substituents on the β-position of the phenylethyl group were identified in Lagotis genus medicinal plants for the first time. This study provides scientific support for elucidating the material basis and improving the quality control of Lagotis brevituba Maxim.

Laparoscopic Common Bile Duct Exploration for Treatment of Common Bile Duct Stones:Clinical Analysis of 158 Cases / 中国医学科学院学报

Objective To evaluate the safety and effectiveness of laparoscopic common bile duct exploration in the treatment of common bile duct stones. Methods A retrospective analysis was conducted for 158 patients with cholecystolithiasis and choledocholithiasis admitted to the Number One Hospital of Zhangjiakou from January 2015 to December 2019.The patients were assigned into three groups according to the diameters of cystic duct and common bile duct,degrees of abdominal infection and tissue edema,and operation method.Group A(16 cases):laparoscopic cholecystectomy,transcystic choledochoscopic exploration for stone removal;Group B(94 cases):laparoscopic cholecystectomy,common bile duct incision exploration combined with choledochoscopy for stone removal,T tube drainage;Group C(48 cases):laparoscopic cholecystectomy,common bile duct incision exploration combined with choledochoscopy for stone removal,primary closure of the common bile duct.The operation time,residual rate of stones,and complication(bleeding,bile leakage,and wound infection) rate were compared between groups. Results The operation time of groups A,B,and C was(95.1±14.7),(102.2±18.1),(110.1±16.4) minutes,respectively,which showed no statistical difference between each other(F=0.020,P=0.887).One case in group A had residual stones,while no residual stone appeared in groups B and C.The overall stone clearance rate was 99.4% and the overall complication rate was 1.9%.There was no perioperative death. Conclusion It is generally safe and effective to carry out laparoscopic cholecystectomy and common bile duct exploration for stone removal in suitable populations.

Correlation study of retinal vascular morphological parameters with ischemic stroke / 中华眼底病杂志

Objective:To observe the morphological characteristics of retinal vessels in patients with ischemic stroke, and to preliminary analyze the correlation between retinal vascular morphological parameters and ischemic stroke.Methods:A retrospective study. From May 2015 to May 2017, 73 patients with ischemic stroke (ischemic stroke group) confirmed by examination at the Beijing Friendship Hospital, Capital Medical University were included in this study. In addition, 146 patients were included in the control group. A total of 146 patients with acute stroke who were excluded by head CT and/or magnetic resonance imaging were selected as the control group. Fundus images of patients were collected by nonmydriatic fundus camera. Retinal vascular parameters were measured by artificial intelligence fundus image analysis system, included retinal artery and vein caliber as well as vascular curvature, branching angle, fractal dimension, and density. The morphological characteristics of retinal vessels were compared between the control and ischemic stroke groups, and correlation between the retinal vascular parameters and ischemic stroke was analyzed using binary logistic regression.Results:Compared with the control group, the ischemic stroke group had thinner retinal artery caliber, smaller retinal vascular fractal dimension, and lower retinal vascular density; moreover, these differences were statistically significant ( t=3.232, 3.502, 3.280; P<0.05). Vascular fractal dimension [odds ratio ( OR)=0.291, 95% confidence interval ( CI) 0.160-0.528] and retinal artery caliber ( OR=0.924, 95% CI 0.870-0.981) were strongly correlated with ischemic stroke ( P<0.01). Conclusion:Compared with the control group, the retinal artery caliber, fractal dimension and retinal vascular density in ischemic stroke group are smaller; decreased retinal artery caliber and fractal dimension are correlated with ischemic stroke.

Gastric preparation with Sprite Zero ? for magnetically controlled capsule endoscopy / 中华消化内镜杂志

Objective:To explore the feasibility of 400 mL Sprite Zero ? in gastric preparation for magnetically controlled capsule endoscopy (MCE) . Methods:A randomized controlled trial at the Department of Gastroenterology of Changhai Hospital, Naval Medical University from December 16th, 2019 to January 15th, 2020 was conducted. The patients and healthy volunteers who intended to receive MCE were randomly divided into the Sprite Zero ? (S) group and the water (W) group at 1∶1. For subjects in the W group, 800 mL water was taken 10 minutes before swallowing the capsule. And for subjects in the S group, 400 mL Sprite Zero ? was taken. The primary endpoint was gastric filling score and the secondary endpoint included the fullness score, gastric transit time (GTT), small bowel transit time (SBTT), completion rate (CR) for small bowel examination and the diagnostic yield. Results:A total of 102 subjects were enrolled, 52 subjects in the S group and 50 subjects in the W group. The median score of gastric filling was 4 at 0-5 min, >5-10 min and >10-15 min after taking the capsule in both groups, with less median liquid consumption in the S group than the W group (500 mL VS 950 mL, P<0.001). The S group showed lower median fullness score (7.0 scores VS 7.5 scores, P=0.030) and higher proportion of patients with GTT less than 30 minutes [69.57% (16/52) VS 27.59% (8/29), P=0.030] compared with the W group. The CR of small bowel examination in the S group was 100.00%, higher than that of the W group (89.66%, P=0.245). Conclusion:Compared with 800 mL water, 400 mL Sprite Zero ? can fully fill the stomach with more comfort. It has the potential to accelerate gastric emptying and improve the CR of small bowel examination, which is feasible for the gastric preparation.

Clinical characteristics and prognosis of MLL-AF6 positive patients with acute myeloid leukemia / 北京大学学报(医学版)

OBJECTIVE@#To investigate the clinical features and prognosis of acute myeloid leukemia (AML) patients with the mixed lineage leukemia (MLL) gene rearrangements AF6 (MLL-AF6) positive.@*METHODS@#In the study, 11 patients who were newly diagnosed with MLL-AF6 positive AML were analyzed retrospectively, related literature was reviewed to clarify the clinical features and prognosis of MLL-AF6 positive patients.@*RESULTS@#Among the 11 patients, there were 6 males and 5 females, with a median age of 36 years. Six patients were diagnosed with AML M5 and five with M4 according to FAB classification (French-American-British classification systems). Gingival swelling and pain occurred in 6 cases and fever occurred in 5 cases. At first diagnosis, the median white blood cells were 55.5×109/L. Immunotype showed the expression of myeloid/monocyte and early stem cell series antigens. The expression level of MLL-AF6 fusion gene (real-time quantitative PCR) was 14.2%-214.5%, and 6/11 cases (54.5%) were associated with high EVI1 gene expression. Mutations of KRAS, TET2, ASXL1, TP53, DNMT3A, and FLT3-ITD were detected by next generation sequencing (NGS) in 4 patients. Chromosome G banding examination showed that 2 cases were t(6;11)(q27, q23) with complex karyotype abnormality, 4 cases with +8 abnormality and 2 cases with normal karyotype. Hematological complete remission (CR) was achieved in 8/11 patients (72.7%) after conventional induction chemotherapy, and primary drug resistance was observed in 3 patients. Two of the eight patients with CR were negative for minimal residual disease (MRD), with a median CR duration of 4.5 months. Two patients with positive MRD and three patients with refractory recurrence underwent allogeneic hematopoietic stem cell transplantation (allo-HSCT), but all died due to leukemia progression. At the end of follow-up on December 1, 2019, 2 patients were alive and 9 died, with median survival time of 9 months.@*CONCLUSION@#The AML patients with MLL-AF6 positive were mostly young, the majority of FAB types were M4 and M5, and most of the patients often had fever as the first symptom, with increased white blood cells, accompanied by organ infiltration, and high EVI1 gene expression. The hematological remission rate of routine chemotherapy is not low, but it is difficult to achieve molecular remission, most of which have early recurrence. Early allo-HSCT in a molecular negative state may prolong the CR duration.

Opportunities and challenges of parenchyma-preserving pancreatectomy in the era of laparoscopy and robot / 国际外科学杂志

The increasing incidence and early diagnosis of benign and low grade malignant tumor have presented new challenge to surgeons. Nowadays the safety of pancreatic surgery are warranted due to the progress of surgical techniques, resulting in the expansion of surgical indications. The long survival time post-operation of benign or low grade malignant tumors makes the preservation of endocrine and exocrine function of pancreas more and more important, and the parenchyma-preserving pancreatectomy has been increasing used at experienced medical center, including enucleation, central pancreatectomy and duodenum preserving pancreatic head resection. Compared with pancreaticoduodenectomy and distal pancreatectomy, significantly less patients suffered from endocrine and exocrine insufficiency after local resection of pancreas. More complications was observed after enucleation and duodenum preserving pancreatic head resection, mostly grade A pancreatic fistula, with low rate of mortality. Central pancreatectomy was associated with significantly more severe complications, compared with distal pancreatectomy. Laparoscopic or robotic local resection of pancreas are minimally invasive, and more suitable for the protection of main pancreatic duct with amplifying visions, and is more suitable for local resection of the pancreas than open surgery.

Network pharmacological analysis and experimental verification of anti-inflammatory and analgesic effect of Zanthoxyli Pericarpium / 中国中药杂志

To explore the mechanism of anti-inflammatory and analgesic effect of Zanthoxyli Pericarpium based on network pharmacology and inflammatory or pain mouse models. The effective components of Zanthoxyli Pericarpium were screened out by TCMSP database. And their potential corresponding targets were predicted by PharmMapper software. The possible targets relating to inflammation and pain were mainly collected through DrugBank, TTD and DisGeNET databases. The "active ingredient-gene-disease" network diagram was constructed by Cytoscape 3.7.0 software. The network pharmacology results showed 5 potential effective compounds, which were related to 29 targets; 132 targets relating to inflammation and pain were screened out in the DrugBank, TTD and DisGeNET databases. The network analysis results indicated that the phosphatidylinositol 3-kinase catalytic subunit gamma isoform(PIK3 CG) gene may be the key to the anti-inflammatory and analgesic effect of Zanthoxyli Pericarpium. The anti-inflammatory and analgesic effects of essential oil extract and dichloromethane extract of Zanthoxyli Pericarpium were explored through the mouse model of inflammation induced by xylene or carrageenan and the mouse model of pain induced by acetic acid or formalin. The experimental results showed that essential oil extract and dichloromethane extract of Zanthoxyli Pericarpium could reduce xylene-induced ear swelling and carrageenan-induced paw swelling and decrease the number of writhing responses in mice induced by acetic acid and the licking foot time of mice in phase Ⅱ induced by formalin. Western blot results showed that Zanthoxyli Pericarpium extract could inhibit the expressions of PIK3 CG, phosphonated nuclear factor kappaB(p-NF-κB) and phosphonated p38(p-p38 MAPK) protein. The present study showed the anti-inflammatory and analgesic effect of Zanthoxyli Pericarpium through multiple components and targets, so as to provide a pharmacodynamic basis for the study of Zanthoxyli Pericarpium and its mechanism.

Safety and efficacy of ultrafiltration on heart failure patients with reduced ejection fraction and diuretic resistance: results from a single-center randomized controlled trial / 中华心血管病杂志

Objective: To investigate the safety and efficacy of ultrafiltration on diuretic sensitivity in heart failure patients with reduced ejection fraction and diuretic resistance. Methods: This was a single-center randomized controlled trial. A total of 148 heart failure patients with reduced ejection fraction admitted to the Hospital of Traditional Chinese Medicine of Xinjiang Uygur Autonomous Region from June 2010 to June 2020 were enrolled in this study, and these patients were randomly divided (ratio 1:1) into the ultrafiltration group (n=74) and the control group (n=74). All patients were treated with diuretics, cardiotonic, vasodilator and other comprehensive drugs according to relevant guidelines. After grouping, the patients in the control group were treated with standard treatment plan, while patients in the ultrafiltration group were treated with ultrafiltration on top of standard therapy. Diuretic drugs were discontinued during ultrafiltration, and intravenously furosemide (40 mg) was given immediately and 24 hours after the end of ultrafiltration. Clinical data including gender, age, complicated diseases, New York Heart Association (NYHA) function classification, etc. were collected. Effectiveness indicators include urine volume (the first 12-hour and 24-hour urine volume and the second 24-hour urine volume after using diuretic), body weight and dyspnea severity score. Safety indicators include systolic blood pressure, serum creatinine, serum Na+ concentration, blood K+ concentration and the number of deaths before and after intervention. Results: Two patients in the control group died due to worsening heart failure after randomization and were excluded in this study, 146 patients were finally analyzed (72 patients in the control group and 74 patients in the ultrafiltration group). There were 93 males, and the age was (68.3±11.2) years. There was no significant difference between patients in the ultrafiltration group and the control group in gender, age, body weight, course of disease, dyspnea severity score, NYHA function classification Ⅲ/Ⅳ, the proportion of patients with severe edema of both lower limbs, the proportion of patients with complicated diseases, and basic medication (all P>0.05). After using diuretics, the urine volume of the first 12-hour and 24-hour and the second 24-hour were significantly higher in the ultrafiltration group than in the control group (all P<0.05). Body weight decreased significantly after ultrafiltration treatment as compared with that before intervention in the ultrafiltration group (P<0.05). Compared with the control group, the dyspnea severity score was significantly improved in the ultrafiltration group (P<0.05). There was no significant difference in systolic blood pressure, serum creatinine, serum Na+ concentration, blood K+ concentration of patients between ultrafiltration group and control group before and after intervention (all P>0.05). During the clinical diagnosis and treatment, 2 male patients in the control group died, and the cause of death was aggravation of basic diseases complicated with acute heart failure and cardiogenic shock. There was no death in the ultrafiltration group, and there were no obvious clinical adverse events during and after ultrafiltration. Conclusion: Ultrafiltration therapy is safe and can improve diuretic sensitivity in heart failure patients with reduced ejection fraction and diuretic resistance.

Effect of Tongxie Yaofang on Expressions of Colon SERT and Liver 5-HT2AR Proteins in Rats with Ulcerative Colitis Model of Liver Stagnation and Spleen Deficiency / 中国实验方剂学杂志

Objective:To observe the effect of Tongxie Yaofang on the expressions of colon serotonin transporter （SERT）， liver 5-hydroxytryptamine_2A receptor （5-HT_2AR） protein， serum 5-HT and inflammatory factors in ulcerative colitis （UC） model rats of liver stagnation and spleen deficiency， in order to explore the basis of syndrome of liver stagnation and spleen deficiency and the intervention mechanism of Tongxie Yaofang. Method:Fifty male SD rats were randomly divided into blank control group， model group， high， medium and low-dose Tongxie Yaofang group （10，5，2.5 g·kg^-1）， and salazosulacil group （0.3 g·kg^-1）. The ulcerative colitis model of liver depression and spleen deficiency was established by 2，4，6-trinitrobenzene sulfonic acid （TNBS）/ethanol solution enema + restraint stress + diet loss. After successful modeling， the samples were collected after 21 days of drug intervention. Htoxylin eosin （HE） staining and oil red staining were used to observe the pathological changes of colon and liver in each group. Serum interleukin-6 （IL-6）， IL-9， 5-HT and superoxide dismutase （SOD） were detected by enzyme linked immunosorbent assay （ELISA）. Protein expressions of SERT in the colons and 5-HT_2AR in liver of rats were detected by Western blot. Result:Compared with the normal group， obvious ulcers were formed in the colon and lipid droplets in the liver increased in the model group， serum levels of IL-6， IL-9 and 5-HT in the model group increased， while the level of SOD decreased （<italic>P</italic><0.05）. The protein expression of SERT in colon decreased， whereas the protein expression of 5-HT_2AR in liver increased （<italic>P</italic><0.05）. Compare with model group， the pathological damage of colon was improved， and the formation of lipid droplets in liver was reduced in high， medium-dose Tongxie Yaofang groups and sulfasalazine group. The serum levels of IL-6， IL-9 and 5-HT decreased， while the level of SOD increased in Tongxie Yaofang group and sulfasalazine group （<italic>P</italic><0.05）. The protein expression of SERT in colon increased in high，low-dose Tongxie Yaofang groups and sulfasalazine group， and the protein expression of 5-HT_2AR in liver decreased in medium， low dose Tongxie Yaofang groups and sulfasalazine group （<italic>P</italic><0.05）. Conclusion:Tongxie Yaofang may reduce the content of 5-HT， and regulate the intestinal motility and sensory system by up-regulating the expression of SERT in the colon， inhibit the expressions of IL-6，IL-9 and other inflammatory factors， and play an anti-inflammatory role， reduce the content of 5-HT and the expression of 5-HT_2AR in the liver， increase the level of SOD， regulate emotion and lipid metabolism in the liver， and then exert the intervention effect on ulcerative colitis with liver depression and spleen deficiency on the whole.

Application of allogeneic platelet gel in surgical operation for giant aortic aneurysms, one case / 中国输血杂志

【Objective】 To explore the effect of allogeneic platelet gel on hemostasis and repair of vascular anastomoses and wounds in patients with giant aortic aneurysms during surgery. 【Methods】 One adult dose of allogeneic platelets, applied as platelet rich plasma (PRP), was prepared as platelet gel (PG) (about 220 mL) for spraying or smearing at the vascular anastomosis and thoracic wound during the surgery of giant aortic aneurysms. 【Results】 The gel formation was presented about 30 seconds after spraying or smearing with PG on the anastomotic and wound surface. The hemostatic effect is good, with less postoperative drainage fluid from pericardium and mediastinum than usual, and the ICU stay was 4 days. 【Conclusion】 Allogeneic platelets as a source of PRP to prepare PG may be applied to obtain the clotting and healing during surgical operation.