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1.
Article in Chinese | WPRIM | ID: wpr-907710

ABSTRACT

Objective: Pancreatic ductal adenocarcinoma (PDAC) is one of the most malignant digestive tract tumors with a poor prognosis and high recurrence rate. Recently, ferroptosis resistance has been found in PDAC. However, the underlying mechanism of ferroptosis resistance has not been fully elucidated. Cytochrome P4502J2 (CYP2J2) is the main enzyme which mediates arachidonic acid to produce epoxyeicosatrienoic acids (EETs) in human tissues. It has been reported that EETs involve in the development of cancer, while the roles of EETs in PDAC and ferroptosis remain unclear. This study aims to explore the effect of CYP2J2/EETs on ferroptosis of human pancreatic ductal adenocarcinoma cells PANC-1 cells and the underlying mechanisms.Methods: The tumor tissues and para-carcinoma tissues of 9 patients with PDAC were collected and the expression of CYP2J2 was detected with real-time PCR and Western blotting. Enzyme-linked immunosorbent assay (ELISA) was used to detect the level of 8,9-dihydroxyeicosatrienoic acid (8,9-DHET), and the degradation product of 8,9-epoxyeicosa-trienoic acid (8, 9-EET). PANC-1 cells were used in this study. The ferroptosis inducer erastin was used to induce ferroptosis. The intracellular long-chain acyl-CoA synthetase 4 (ACSL4) protein level, lactate dehydrogenase (LDH) activity, malondialdehyde (MDA) content, Fe2+concentration, and cell survival were detected. The 8, 9-EET was pretreated to observe its effect on erastin-induced ferroptosis in PANC-1 cells. Lentivirus was used to construct a CYP2J2 knockdown cell line to observe its effect on the ferroptosis of PANC-1 cells induced by erastin. A peroxisome proliferation-activated receptor γ (PPARγ) blocker was used to observe the effect of 8, 9-EET on erastin-induced glutathione peroxidase 4 (GPX4) and MDA content in PANC-1 cells.Results: High expression of CYP2J2 was found in PDAC, accompanied by an increased level of 8, 9-DHET. The 8, 9-EET pretreatment significantly attenuated the PANC-1 cell death induced by erastin. The 8, 9-EET reduced the Fe2+ concentration, LDH activity and MDA content, and ACSL4 protein expression in erastin-treated PANC-1 cells. The 8,9-EET also restored the ferroportin (FPN) and ferroptosis suppressor protein 1 (FSP1) mRNA expressions in erastin-treated PANC-1 cells. But CYP2J2 knockdown exacerbated the erastin-induced ferroptosis in PANC-1 cells. Besides, CYP2J2 knockdown furtherly down-regulated the gene expression of FPN and FSP1. The 8, 9-EET increased the expression of GPX4 in the erastin-treated PANC-1 cells, which was eliminated by a PPARγ blocker GW9662. And GW9662 abolished the anti-ferroptosis effects of 8,9-EET. Conclusion: CYP2J2/EETs are highly expressed in PDAC tissues. EETs inhibit the ferroptosis via up-regulation of GPX4 in a PPARγ-dependent manner, which contributes to the ferroptosis resistance of PDAC.

2.
Article in Chinese | WPRIM | ID: wpr-906409

ABSTRACT

In recent years, the incidence rate of andrological diseases has shown a significant growth trend. Considering the unavailability of a perfect theoretical system for andrology in traditional Chinese medicine (TCM) and the complex pathogenesis despite of the limited types of andrological diseases, it is necessary to improve the clinical efficacy of andrological diseases so as to satisfy the needs of patients. Therefore, the China Association of Chinese Medicine (CACM) organized the andrologists of TCM and western medicine and the outstanding young clinicians to discuss the andrological diseases responding specifically to TCM or integrated TCM and western medicine, such as chronic prostatitis, male infertility, benign prostatic hyperplasia, erectile dysfunction, and premature ejaculation, determine their diagnostic criteria in western medicine, and standardize the specifications for TCM diagnosis and treatment based on syndrome differentiation, thus formulating recognized and integrated diagnosis and treatment protocols. Apart from proposing suggestions on the treatment of such andrological diseases with TCM and western medicine, the experts have also figured out the andrological diseases responding specifically to TCM, the optimal intervention time of TCM and western medicine, and the suitable measures including surgery. The resulting consensus helps to better guide the formulation of accurate, personalized, and optimized treatment plans in clinical practice and improve the diagnosis and treatment effects of andrological diseases by giving full play to the advantages of TCM, which will in turn contribute to further innovation and development of TCM.

3.
Article in Chinese | WPRIM | ID: wpr-906136

ABSTRACT

Objective:To explore the mechanism of Sishenwan, Baitouweng Tang, and Lianlitang in the treatment of ulcerative colitis (UC), and compare their efficacies on UC in rats. Method:Ninety SD rats of SPF grade were randomly divided into blank group (distilled water, 2 mL·d<sup>-1</sup>) and experimental group. The rats in the experimental groups were administered with 2,4,6-trinitrobenzene sulfonic acid (TNBS) by clysis to induce the UC model. Subsequently, the model rats were divided into a model group (distilled water, 2 mL·d<sup>-1</sup>), positive group [sulfasalazine (SASP), 0.4 g·kg<sup>-1</sup>·d<sup>-1</sup>], Sishenwan group (1.76 g·kg<sup>-1</sup>·d<sup>-1</sup>), a Baitouweng Tang group (1.40 g·kg<sup>-1</sup>·d<sup>-1</sup>), and Lianlitang group (2.13 g·kg<sup>-1</sup>·d<sup>-1</sup>) according to the random number table. The rats in each group were dosed at 2 mL·d<sup>-1</sup> for 14 days. The pathological score for colonic mucosa was detected. Cytokines were detected by the cytokine chip. The enzyme-linked immunosorbent assay (ELISA) was used to detect the free triiodothyronine (FT<sub>3</sub>), glucagon-like peptide-1 (GLP-1), and corticosterone (CORT) in plasma, and neurotensin (NT), substance P (SP), vasoactive intestinal peptide (VIP), and somatostatin (SST) in colon tissues. Result:Compared with the normal group, the model group showed increased colon mass-length ratio and pathological score for colonic mucosa (<italic>P</italic><0.01), infiltration of massive lymphocytes, disordered or absent intestinal villi, elevated levels of cytokine-induced neutrophil chemoattractant-1/2<italic>α</italic>/<italic>β</italic>/3 (CINC-1/2<italic>α</italic>/<italic>β</italic>/3), interleukin-1<italic>α</italic> (IL-1<italic>α</italic>), interferon-inducible protein-10 (IP-10) and other factors in colon tissues (<italic>P</italic><0.05), dwindled CORT and GLP-1 levels in plasma (<italic>P</italic><0.05), and increased SP content in colon tissues (<italic>P</italic><0.05). Compared with the results in the model group, the mucosal injury in the colon of rats in each drug group was relieved. The levels of IL-1<italic>α</italic>, IP-10, lipopolysaccharide-inducible CXC chemokine (LIX), and L-selectin of rats in the Lianlitang group and Sishenwan group were reduced (<italic>P</italic><0.05), and the CINC-3 and IL-17 levels were diminished in the Baitouweng Tang group (<italic>P</italic><0.05). The levels of CINC-1/3, IL-1<italic>α</italic>, and IP-10 were reduced in the SASP group (<italic>P</italic><0.05). The plasma FT<sub>3</sub> was up-regulated in the Lianlitang group, and the plasma GLP-1 levels were elevated in the three Chinese medicine groups (<italic>P</italic><0.05). The VIP content in colon tissues of the Sishenwan group and Baitouweng Tang group was down-regulated (<italic>P</italic><0.05), and the SST content in colon tissues of the SASP group was significantly up-regulated (<italic>P</italic><0.01). Conclusion:The intervention of Lianlitang and Sishenwan on UC was significant, and the underlying mechanism of action might be related to inflammation inhibition and immune balance by regulating the cytokine network. The efficacy of Lianlitang was predominant, followed by Sishenwan and Baitouweng Tang.

4.
Article in Chinese | WPRIM | ID: wpr-905278

ABSTRACT

Netrin-1 may protect and repair the damage caused by cerebral infarction, in terms of inhibiting apoptosis and inflammatory, and promoting angiogenesis and axon regeneration, etc. Netrin-1 may associate with the pathogenesis and outcome of cerebral infarction. The application of Netrin-1 in clinic needs more researches.

5.
Asian Journal of Andrology ; (6): 415-420, 2021.
Article in English | WPRIM | ID: wpr-888428

ABSTRACT

To improve the diagnostic efficiency of prostate cancer (PCa) and reduce unnecessary biopsies, we defined and analyzed the diagnostic efficiency of peripheral zone prostate-specific antigen (PSA) density (PZ-PSAD). Patients who underwent systematic 12-core prostate biopsies in Shanghai General Hospital (Shanghai, China) between January 2012 and January 2018 were retrospectively identified (n = 529). Another group of patients with benign prostatic hyperplasia (n = 100) were randomly preselected to obtain the PSA density of the non-PCa cohort (N-PSAD). Prostate volumes and transition zone volumes were measured using multiparameter magnetic resonance imaging (mpMRI) and were combined with PSA and N-PSAD to obtain the PZ-PSAD from a specific algorithm. Receiver operating characteristic (ROC) curve analysis was used to assess the PCa detection efficiency in patients stratified by PSA level, and the area under the ROC curve (AUC) of PZ-PSAD was higher than that of PSA, PSA density (PSAD), and transition zone PSA density (TZ-PSAD). PZ-PSAD could amend the diagnosis for more than half of the patients with inaccurate transrectal ultrasonography (TRUS) and mpMRI results. When TRUS and mpMRI findings were ambiguous to predict PCa (PIRADS score ≤3), PZ-PSAD could increase the positive rate of biopsy from 21.7% to 54.7%, and help 63.8% (150/235) of patients avoid unnecessary prostate biopsy. In patients whose PSA was 4.0-10.0 ng ml

6.
Article in Chinese | WPRIM | ID: wpr-921557

ABSTRACT

Objective To determine whether the signaling activation of bone morphogenetic protein 2(BMP2)can induce myeloid-derived suppressor cells(MDSC)to secret transforming growth factor β(TGF-β),further enhancing the differentiation and infiltration of regulatory T lymphocytes(Treg)into tumor tissue. Methods The BMP2-induced mRNA and protein expression of TGF-β in MDSC was detected by quantitative real-time polymerase chain reaction and enzyme-linked immunosorbent assay(ELISA),respectively.The effect of BMP2-induced TGF-β secretion by MDSC on Treg differentiation was then determined by flow cytometry.Finally,we implanted the recombined human bone morphogenetic protein 2(rhBMP2)collagen gels into tumor-burdened mice to examine the role of BMP2 in Treg differentiation via MDSC-secreted TGF-β


Subject(s)
Animals , Bone Morphogenetic Protein 2 , Cell Differentiation , Mice , Myeloid-Derived Suppressor Cells , Neoplasms , T-Lymphocytes, Regulatory , Transforming Growth Factor beta
7.
Article in English | WPRIM | ID: wpr-879311

ABSTRACT

In the era of coronavirus disease 2019 (COVID-19) pandemic, imported COVID-19 cases pose great challenges to many countries. Chest CT examination is considered to be complementary to nucleic acid test for COVID-19 detection and diagnosis. We report the first community infected COVID-19 patient by an imported case in Beijing, which manifested as nodular lesions on chest CT imaging at the early stage. Deep Learning (DL)-based diagnostic systems quantitatively monitored the progress of pulmonary lesions in 6 days and timely made alert for suspected pneumonia, so that prompt medical isolation was taken. The patient was confirmed as COVID-19 case after nucleic acid test, for which the community transmission was prevented timely. The roles of DL-assisted diagnosis in helping radiologists screening suspected COVID cases were discussed.


Subject(s)
Adult , Beijing , COVID-19/diagnostic imaging , COVID-19 Testing/methods , Community-Acquired Infections/diagnostic imaging , Deep Learning , Humans , Lung/diagnostic imaging , Male , Tomography, X-Ray Computed/methods
8.
Article in Chinese | WPRIM | ID: wpr-878944

ABSTRACT

By preparing 15 batches of lyophilized powder samples of substance benchmark in Houpo Wenzhong Decoction,the fingerprint,index component content and extract rate were determined,and the characteristic peaks,the range of similarity with the reference map,the content range and transfer rate range of magnolol,hesperidin,glycyrrhizic acid and pinocembrin,the extract rate range and the change range were clarified. The results showed that the similarity between the fingerprint of substance benchmark and the reference map R generated from the 15 batches of substance benchmark samples was higher than 0. 90. The assignment of the characteristic peaks in the full prescription's fingerprint of the herbs except Poria cocos was clarified. Nineteen characteristic peaks were assigned,and 12 characteristic peaks were assigned by the reference substance,of which 4 were from Magnolia ocinalis Cortex,5 from Exocarpium Citri Rubrum,2 from Radix aucklandiae,3 from Glycyrrhiza Radix et Rhizoma,4 from Semen Alpiniae Katsumadai,and one from Rhizoma Zingiberis and Zingiber officinale Roscoe. The index component content range and transfer rate range were 0. 80%-1. 14% and 20. 25%-39. 61% for hesperidin,0. 49%-0. 79% and 23. 09%-33. 87%for glycyrrhizic acid,0. 03%-0. 07% and 3. 55%-10. 09% for pinocembrin,0. 15%-0. 38% and 8. 08%-24. 35% for magnolol. The extract rate range and the change range were22. 60%-25. 57% and 12. 67%-23. 68% respectively. In this study,we introduced the concepts of index component content,fingerprint,extract rate,explored the transfer relation of quality value transmitting of substance benchmark in Houpo Wenzhong Decoction,and initially established the quality standard of Houpo Wenzhong Decoction,all of which would provide ideas for the development and research of similar prescriptions.


Subject(s)
Benchmarking , Chromatography, High Pressure Liquid , Drugs, Chinese Herbal , Glycyrrhiza , Quality Control
9.
Chinese Journal of Trauma ; (12): 905-911, 2020.
Article in Chinese | WPRIM | ID: wpr-867803

ABSTRACT

Objective:To investigate the clinical outcome of extended Carlson approach to plate fixation of tibial plateau fracture with combined posterolateral and anterolateral fragments.Methods:A retrospective case series study was made on 16 patients with tibial plateau fracture with combined posterolateral and anterolateral fragments admitted to First Affiliated Hospital of Fujian Medical University from January 2015 to September 2019. There were 10 males and 6 females, with age of (35.2±4.3)years (range, 22-59 years). According to the Schatzker fracture classification, type II was found in 10 patients, type III in 4, type V in 1 and type VI in 1. Two-column fractures were found in 14 patients and three-column fracture in 2 patients. All patients were treated by plate fixation through the extended Carlson approach. The anterior-posterior X-ray and 3D reconstruction CT scan test were taken at every 3 months after operation to assess fracture healing and posterior tilt angle of lateral tibial plateau. The Rasmussen knee function score was performed 12 months after operation. Complications were detected as well.Results:All patients were followed up for 13-38 months [(18.3±4.6)months]. All patients showed bone healing. At postoperative 12 months, the posterior tilt angle of lateral tibial plateau was reduced to (11.5±4.7)°, compared to preoperative (28.9±3.2)° ( P<0.05). At postoperative 12 months, the Rasmussen score was (25.8±1.1)points compared with preoperative (13.1±3.8)points ( P<0.05), and the results were excellent in 9 patients (56%), good in 6 (37%), and fair in 1 (6%), with the excellent-good rate of 94%. No complications were observed, such as skin necrosis, surgical site infection, internal fixator exposure or osteomyelitis. Conclusion:For tibial plateau fracture with combined posterolateral and anterolateral fragments, plate fixation via the extended Carlson approach is effective to reduce and fix the fracture, decrease the posterior tilt angle of lateral tibial plateau and improve the recovery of postoperative knee function, with no neurovascular injury complications.

10.
Article in Chinese | WPRIM | ID: wpr-872902

ABSTRACT

Objective:To find the natural environmental boundary of the origin of the authentic Ligusticum chuanxiong by analyzing the distribution characteristics of soil elements in the traditional geo-authentic area and the southern continuous expanding areas along the same longitude. Method:The contents of 24 elements both in soil and plant L. chuanxiong samples were determined by using X-ray fluorescence spectrometry (XRF) and ICP-MS,etc. Spearman correlation test was used to evaluate the correlations of rhizosphere soil and each portion of L. chuanxiong,to screen out “characteristic elements”. Bray-Curtis similarity indexes based on all elements and "characteristic elements" were used for hierarchical cluster analysis of soil samples, to identify the sample range with similar soil element charateristics to the traditional geo-authentic area of L. chuanxiong. Result:K,Mg,Mn and Rb elements were significantly correlated in rhizosphere soil and plant L. chuanxiong. Geographical differentiation of all elements and four characteristic elements showed that there was a highest similarity between geo-authentic area and its neighbor plots S1-S6 (except plot S4) in soil elements distribution, followed by plots S14-S16. The middle section plots S7-S13 in the expansion areas were quite different from the traditional geo-authentic production areas. Conclusion:The soil element characteristics in the study areas were not completely controlled by geographical distance,but demonstrated the "fault" variation in the areas along longitude. This study provides a theoretical basis for the detrrmination of suitable cultivation area for Ligusticum Chuanxiong, and the natural boundary of its geo-authentic area may be extended an additional 60 km southward along longitude beyond the traditional origin. Additionally, K,Mg,Mn and Rb characteristic elements may be the potential markers to evaluate the suitable soil environment for cultivating L. chuanxiong.

11.
Article in Chinese | WPRIM | ID: wpr-856263

ABSTRACT

Objective: To evaluate the effectiveness of percutaneous retrograde pubic screw implantation assisted by hollow pedicle opener in pubic branch fractures. Methods: The clinical data of 42 patients with pubic branch fractures treated by hollow screw fixation between March 2008 and March 2019 were analyzed retrospectively. According to the operation method, they were divided into the traditional operation group (20 cases in group A, fixed with traditional retrograde pubic screws) and the modified operation group (22 cases in group B, fixed with percutaneous retrograde pubic screws assisted by hollow pedicle opener). There was no significant difference ( P>0.05) between the two groups in terms of gender, age, cause of injury, fracture classification, comorbidity, and time from injury to operation. The operation time, blood loss, incision length, screw length, and complications were recorded and compared between the two groups. The fracture reduction was evaluated according to Matta standard on the next day after operation, and the function was evaluated by Majeed score at 12 months after operation. Results: The operation was successfully completed in both groups. The operation time, blood loss, and incision length of group B were significantly less than those of group A ( P0.05). Conclusion: Percutaneous retrograde pubic screw implantation assisted by hollow pedicle opener is effect for the pubic branch fractures with the advantage of smaller incision, shorter operation time, and less bleeding compared with traditional methods.

12.
Article in Chinese | WPRIM | ID: wpr-849767

ABSTRACT

Acute biliary infection is one of the common causes of acute abdomen, easily causes severe infection and even death. The reasonable treatment of the acute phase is very important. The sudden outbreak of corona virus disease (COVID-19) has posed severe challenges to the country's economic and social life, and has also led to an extreme shortage of medical resources. The diagnosis and treatment of acute biliary infections disease also face challenges. In order to control the epidemic of infectious diseases, we write this article from the perspective of prevention and controlling of COVID-19, referring to the Tokyo Guidelines 2018 to express our views on the diagnosis and treatment strategies for acute biliary infection, hoping to do our best to prevent and control the epidemic of COVID-19.

13.
National Journal of Andrology ; (12): 888-894, 2020.
Article in Chinese | WPRIM | ID: wpr-880287

ABSTRACT

Objective@#To investigate the advantages and disadvantages of point electro-cauterization (PEC) and holmium laser cauterization (HLC) in the treatment of post-ejaculation hematuria.@*METHODS@#From January 2015 to December 2018, 73 patients with post-ejaculation hematuria, aged 24-63 (36.8 ± 4.2) years, underwent PEC (n = 35) or HLC (n = 38) after failure to respond to 3 months of conservative treatment. We compared the hospital days, total hospitalization expenses, maximum urinary flow rate (Qmax), average urinary flow rate (Qavg), Hamilton Anxiety Rating Scale (HAMA) score, postoperative duration of hematuria, and recurrence rate at 3 and 6 months after surgery.@*RESULTS@#All the patients experienced first ejaculation but no post-ejaculation hematuria at 1 month after operation. The recurrence rates were lower in the PEC than in the HLC group at 3 months (5.71% vs 2.63%, P > 0.05) and 6 months postoperatively (8.57% vs 5.26%, P > 0.05). Compared with the baseline, the Qmax was decreased from (18.56 ± 2.53) ml/s to (13.68 ± 3.31) ml/s (P < 0.05) and the Qavg from (14.35 ± 2.26) ml/s to (9.69±1.84) ml/s in the PEC group at 1 month after surgery (P < 0.01), but neither showed any statistically significant difference in the HLC group. Mild to moderate anxiety was prevalent in the patients preoperatively, particularly in those without job or regular income and those with a long disease course or frequent onset, the severity of which was not correlated with age, education or marital status. The HAMA score was decreased from18.65 ± 4.33 before to 12.35 ± 3.63 after surgery in the PEC group (P < 0.01), and from 16.88 ± 2.11 to 6.87 ± 4.36 in the HLC group (P < 0.01). The mean hospital stay was significantly longer in the former than in the latter group ([5.2 + 1.3] vs [3.4 ± 0.5] d, P < 0.01), while the total cost markedly lower ([6.35 ± 1.20] vs [12.72 ± 2.15] thousand RMB ¥, P < 0.05).@*CONCLUSIONS@#Both PEC and HLC are safe and effective for the treatment of post-ejaculation hematuria, with no significant difference in the recurrence rate at 3 and 6 months after operation, but their long-term effect needs further follow-up studies. PEC may increase the risk of negative outcomes of the postoperative urinary flow rate, while HLC has the advantages of better relieving the patient's anxiety, sooner discharge from hospital and earlier recovery from postoperative hematuria, though with a higher total cost than the former.


Subject(s)
Adult , Cautery , Ejaculation , Hematuria/surgery , Holmium , Humans , Laser Therapy , Lasers, Solid-State/therapeutic use , Male , Middle Aged , Treatment Outcome , Young Adult
14.
Chinese Journal of Urology ; (12): 309-313, 2020.
Article in Chinese | WPRIM | ID: wpr-869637

ABSTRACT

Objective:To evaluate the efficacy of low-intensity extracorporeal shock wave therapy (LI-ESWT) in patients with traumatic erectile dysfunction.Methods:The present study included 62 patients with traumatic erectile dysfunction, including 30 patients treated with low intensity shock waves and 32 controlled patients. The treatment groups were performed six times (twice per week), each by 3 000 impulses. The follow-up was performed 4, 8 and 12 weeks after LI-ESWT. The International Index of Erectile Function-5 (IIEF-5), nocturnal penile tumescence (NPT) and the Erection Hardness Score (EHS) were used to evaluate the therapeutic efficacy of LI-ESWT.Results:LI-ESWT could significantly improve IIEF-5 (15.67±3.89 vs. 9.41±4.66, P<0.01). 67% of patients in the LI-ESWT group and none of the control group answering 'yes’ to the SEP-Q2 elevated. In the low intensity shock wave treatment group and the control group 67% and 0 of patients, respectively, achieved erection hard enough for vaginal penetration, that is an EHS (Erection Hardness Score) of 3 ( P<0.01). According to changes in the IIEF-5 score treatment was effective in 70% of men who received low intensity shock wave treatment but in none in the control group ( P<0.01). Therapeutic efficacy could last 12 weeks ( P<0.05). No adverse events were reported during and following treatment. Conclusions:These studies suggest that LI-ESWT could improve the IIEF and EHS of traumatic ED patients.

15.
Article in Chinese | WPRIM | ID: wpr-843232

ABSTRACT

More than 220 million Chinese children and adolescents are confined to their homes because of the corona virus disease 2019 (COVID-19) outbreak. Thanks to the strong administrative system in China, the emergency home schooling plan has been rigorously implemented. Although these measures and efforts are highly commendable and necessary, there are reasons to be concerned because prolonged school closure and home confinement during a disease outbreak might have negative effects on children's physical and mental health. It is the responsibility and keen interests of all stakeholders, from governments to parents, to ensure that the physical and mental impacts of the COVID-19 epidemic on children and adolescents are kept minimal.

16.
Article in Chinese | WPRIM | ID: wpr-811504

ABSTRACT

Objective@#To observe theepidemiology, clinical manifestations, laboratory tests, imaging findings, treatment and prognosis of patients with novel coronavirus pneumonia.@*Methods@#Clinical data of 109 patients with suspected and definite novel coronavirus pneumonia admitted to Wuhan Sixth Hospital from December 24, 2019 to January 28, 2020 were retrospectively analyzed. Statistical analysiswas performed by using t test or chi-square test.@*Results@#Among the 109 patients, 48 (44%) were male and 61 (56%) were female, with the average age of (52.5±10.8) years. Fifty-four patients (49.5%) had definite contact history. Among the 109 patients, 104 (95.5%) presentedwith fever, 37(33.7%) with headache, 78 (71.9%) with general pain, 88 (80.8%) with fatigue and poor appetite, 23 (21.3%) with diarrhea, 94 (86.5%) withcoughing, 23 (21.3%) with shortness of breath, 57 (52.8%) withpalpitation, 45 (41.5%) with chest distress, 4 (3.3%) with chest pain, 40 (37.0%) with lung rales. Forty-two cases (38.5%) had leukocyte count <4×109/L, 58 cases (53.2%) had lymphocyte count <1.5×109/L, 7 cases (24.8%) had hemoglobin <120g/L, 37 cases(33.9%) had LDH >230 mmol/L, 29 cases (26.6%) had brain natriuretic peptide precursor>300 ng/mL, 87 cases (79.8%) had hypersensitive C-reactive protein >10mg/L, 26 cases (23.9%) had D-dimer >0.5 mg/L, 35 cases (32.1%) had coagulation disorder. The leukocyte counts, LDH, brain natriuretic peptide precursor and D-dimer of severe/critical cases[(11.33±4.87)×109/L, (527.51±260.87) mmol/L, (722.88±189.56) ng/mL, (1.89±4.24) mg/L, respectively] were all significantly higher than those of common cases [(4.02±1.49)×109/L, (159.75±30.31)mmol/L, (428.22±124.76)ng/mLand (0.41±0.22)mg/L, respectively], while the lymphocyte count of severe/critical cases [(0.60±0.17)×109/L] was significantly lower than common cases [(1.13±0.43)×109/L] (t=11.36, 11.33,9.81,2.81 and 7.77,all P<0.05). On admission, chest CT showed that 27 cases (24.8%) of pneumonia were unilateral, 82 cases (75.2%) werebilateral, and most of them were ground glass. The pneumonia progressed in a short time and reached the peak within 10 days. The comprehensive treatment included antiviral drugs, prevention ofbacterialinfection and supportive treatment, and glucocorticoid and respiratory support treatment wereadministrated when necessary.@*Conclusions@#The novel coronavirus pneumonia is characterized by highly infectious, rapid progress, and diverse clinical and imaging features. Early diagnosis and active comprehensive treatment could improve theprognosis and reduce themortality.

17.
Acta Physiologica Sinica ; (6): 299-307, 2020.
Article in Chinese | WPRIM | ID: wpr-827057

ABSTRACT

The purpose of the present study is to investigate the effect of L-cysteine on colonic motility and the underlying mechanism. Immunohistochemical staining and Western blot were used to detect the localization of the HS-generating enzymes cystathionine-β-synthase (CBS) and cystathionine-γ-lyase (CSE). Organ bath system was used to observe the muscle contractile activities. Whole-cell patch-clamp technique was applied to record ionic channels currents in colonic smooth muscle cells. The results showed that both CBS and CSE were localized in mucosa, longitudinal and circular muscle and enteric neurons. L-cysteine had a dual effect on colonic contraction, and the excitatory effect was blocked by pretreatment with CBS inhibitor aminooxyacetate acid (AOAA) and CSE inhibitor propargylglycine (PAG); L-cysteine concentration-dependently inhibited L-type calcium channel current (I) without changing the characteristic of L-type calcium channel (P < 0.01); In contrast, the exogenous HS donor NaHS increased I at concentration of 100 μmol/L, but inhibited I and modified the channel characteristics at concentration of 300 μmol/L (P < 0.05); Furthermore, L-cysteine had no effect on large conductance calcium channel current (I), but NaHS significantly inhibited I (P < 0.05). These results suggest that L-cysteine has a potential dual effect on colonic smooth muscle and the inhibitory effect might be directly mediated by L-type calcium channel while the excitatory effect might be mediated by endogenous HS.


Subject(s)
Cystathionine beta-Synthase , Cystathionine gamma-Lyase , Cysteine , Pharmacology , Hydrogen Sulfide , Muscle, Smooth
18.
Article | WPRIM | ID: wpr-831095

ABSTRACT

Purpose@#Triple-negative breast cancer (TNBC) is highly malignant and has poor prognosis and a high mortality rate. The lack of effective therapy has spurred our investigation of new targets for treating this malignant cancer. Here, we identified RON (macrophage-stimulating 1 receptor) and MET (MET proto-oncogene, receptor tyrosine kinase) as a prognostic biomarker and therapeutic targets for potential TNBC treatment. @*Materials and Methods@#We analyzed RON and MET expression in 187 primary TNBC clinical samples with immunohistochemistry. We validated the targeted therapeutic effects of RON and MET in TNBC using three tyrosine kinase inhibitors (TKIs): BMS-777607, INCB28060, and tivantinib. The preclinical therapeutic efficacy of the TKIs was mainly estimated using a TNBC xenograft model. @*Results@#Patients with TNBC had widespread, abnormal expression of RON and MET. There was RON overexpression, MET overexpression, and RON and MET co-overexpression in 63 (33.7%), 63 (33.7%), and 43 cases (23.0%), respectively, which had poor prognosis and short survival. In vivo, the TKI targeting RON ant MET inhibited the activation of the downstream signaling molecules, inhibited TNBC cell migration and proliferation, and increased TNBC cell apoptosis; in the xenograft model, they significantly inhibited tumor growth and shrank tumor volumes. The TKI targeting RON and Met, such as BMS-777607 and tivantinib, yielded stronger anti-tumor effects than INCB28060. @*Conclusion@#RON and MET co-overexpression can be significant pathological characteristics in TNBC for poor prognosis. TKIs targeting RON and MET have stronger drug development potential for treating TNBC.

19.
Article in English | WPRIM | ID: wpr-785341

ABSTRACT

PURPOSE: Plasma cells and immunoglobulins (Igs) play a pivotal role in the induction and maintenance of chronic inflammation in nasal polyps. During secondary immune responses, plasma cell survival and Ig production are regulated by the local environment. The purpose of the present study was to investigate the presence of long-lived plasma cells (LLPCs) and specific survival niches for LLPCs in human nasal polyps.METHODS: Nasal mucosal samples were cultured with an air-liquid interface system and the Ig levels in culture supernatants were analyzed by enzyme-linked immunosorbent assay. The characteristics of LLPCs in nasal polyps were determined by immunohistochemistry and immunofluorescence. The expression of neurotrophins as well as their receptors was detected by quantitative real-time polymerase chain reaction, immunohistochemistry, immunofluorescence, and Western blotting.RESULTS: The numbers of CD138⁺ total plasma cells and BCL2⁺ plasma cells were increased in both eosinophilic and non-eosinophilic nasal polyps compared with those in normal tissues. The production of IgG, IgA, and IgE was detected in culture supernatants even after a 32-day culture of nasal polyps. Although the total numbers of plasma cells were decreased in nasal polyps after culture, the numbers of BCL2⁺ plasma cells remained stable. The expression of nerve growth factor (NGF) as well as tropomyosin receptor kinase (Trk) A, a high-affinity receptor for NGF, was upregulated in both eosinophilic and non-eosinophilic nasal polyps. In addition, BCL2⁺ plasma cell numbers were positively correlated with NGF and TrkA mRNA expression in nasal mucosal tissues. Polyp plasma cells had the expression of TrkA.CONCLUSIONS: Human nasal polyps harbor a population of LLPCs and NGF may be involved in their prolonged survival. LLPCs may be a novel therapeutic target for suppressing the local Ig production in nasal polyps.


Subject(s)
Blotting, Western , Enzyme-Linked Immunosorbent Assay , Eosinophils , Fluorescent Antibody Technique , Humans , Immunoglobulin A , Immunoglobulin E , Immunoglobulin G , Immunoglobulins , Immunohistochemistry , Inflammation , Mucous Membrane , Nasal Polyps , Nerve Growth Factor , Nerve Growth Factors , Phosphotransferases , Plasma Cells , Plasma , Polyps , Real-Time Polymerase Chain Reaction , RNA, Messenger , Tropomyosin
20.
Acupuncture Research ; (6): 183-188, 2019.
Article in Chinese | WPRIM | ID: wpr-844334

ABSTRACT

OBJECTIVE: To observe the effect of scalp-acupuncture intervention on the expression of Interleukin (IL)-10 mRNA, IL-6 mRNA and tumor necrosis factor (TNF) - α in the parahippocampal gyrus of cerebral ischemia (CI) rats, so as to explore its molecular mechanisms underlying improvement of CI. METHODS: A total of 64 male SD rats were randomized into normal control, model, medication and scalp-acupuncture groups (n=16 rats in each group). The focal CI model was established by middle cerebral artery occlusion. Intraperitoneal injection of Ammonium Pyrrolidine Dithiocarbamate (100 mg•kg-1•d-1) was administrated for rats in the medication group, once a day for 7 days. For rats of the scalp-acupuncture group, the acupuncture needles were rapidly inserted into bilateral Dingnieqianxiexian (MS6), followed by twirling the needles at 100 cycles/min for 1 min, once again every 10 min during 20 min' needle retention. The treatment was conducted once a day for 7 days. The neurologic deficit score (0-4 points, impaired consciousness, death, etc.) and neurological function score (motor, sensory and sensory tests, 0-10 points) were assessed according to Longa's (1989) and Schabitz's (2004) methods, respectively. The expression levels of IL-10 mRNA and IL-6 mRNA were detected by fluorescence quantitative PCR, and the expression of TNF-α was detected by immunohistochemistry. RESULTS: After modeling, the neurologic deficit and neurological function scores and the expression levels of IL-10 mRNA, IL-6 mRNA and TNF-α protein in the parahippocampus were significantly increased in the model group than in the normal control group (P<0.01). Following the intervention, the neurologic deficit and neurological function scores as well as IL-6 mRNA and TNF-α protein expression were significantly down-regulated in both scalp-acupuncture and medication groups (P<0.05), and the expression of IL-10 mRNA was obviously increased (P<0.05) relevant to the model group. CONCLUSION: Scalp-acupuncture can improve neurologic function in CI rats, which is related to its effects in up-regulating the expression of IL-10, then down-regulating the expression of IL-6 and TNF-α (reducing inflammatory response) in the parahippocampal gyrus.

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