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1.
Chinese Journal of Clinical Pharmacology and Therapeutics ; (12): 355-360, 2023.
Article in Chinese | WPRIM | ID: wpr-1014664

ABSTRACT

Idiopathic pulmonary fibrosis (IPF) is a progressive and ultimately fatal chronic interstitial lung disease characterized by a progressive decline in lung function, and current treatment options are limited. cAMP is one of the most important second messengers and plays a key role in relaxing airway smooth muscle cells and reducing inflammation. Phosphodiesterase (PDE) is a superfamily of enzymes, and PDE4 enzymes dominate 11 PDE superfamily enzymes, available in four isoforms-PDE4A, PDE4B, PDE4C and PDE4D, which selectively decompose cAMP, while PDE4 inhibitors increase cAMP levels by preventing cAMP from breaking down, thereby exerting anti-inflammatory, anti-remodeling effects and providing an attractive drug target for the treatment of IPF. This review summarizes knowledge about the association of pulmonary fibrosis with PKE4, as well as emerging preclinical studies and clinical trials regarding PDE4 inhibitors.

2.
Journal of Leukemia & Lymphoma ; (12): 153-157, 2023.
Article in Chinese | WPRIM | ID: wpr-988966

ABSTRACT

Objective:To explore the key genes related to the development, progression and prognosis of acute myeloid leukemia (AML) based on bioinformatics, and to analyze their functions.Methods:The chip expression profile GSE84881 data set of AML patients including 19 AML samples and 4 normal tissue samples was downloaded from the gene expression omnibus (GEO) database. GEO online tool GEO2R was used to screen the differentially expressed genes (DEG). The DAVID online database was used to make gene ontology (GO) and Kyoto encyclopedia of genes and genomes (KEGG) enrichment analysis of DEG. The STRING online database was used to analyze the protein interaction (PPI) network of DEG, and the key genes were screened by using the Cytoscape software. The weighted gene co-expression network analysis (WGCNA) was used to build co-expressed network and obtain the central genes.LC-Bio online platform was used to construct Venn diagram and the key genes and central genes in PPI were crossed to finally obtain the true key genes. RNA-seq datasets GSE2191 and GSE90062 of human tissues were downloaded from GEO database to verify the screened key genes. Kaplan-Meier method was used to analyze the effects of key genes on the overall survival (OS) of AML based on the data of GEPIA database.Results:A total of 247 DEG were identified in GSE84881 data set, including 112 up-regulated genes and 135 down-regulated genes. According to the results of GO enrichment analysis, 247 DEG were mainly enriched in the regulation of signal transduction and cell proliferation in the biological process (BP); the cell composition (CC) revealed that these genes were mainly involved in the cytoplasm and exosomes; the molecular function (MF) analysis showed that these genes were mainly enriched in protein binding and calcium binding. Further KEGG pathway enrichment analysis showed that these 247 DEG were mainly involved in NOD-like receptor signal pathway and interleukin 17 (IL-17) signal pathway. And then the 12 key genes were obtained from PPI. WGCNA software was used to screen 13 central genes from GSE84881 dataset and finally 1 real key gene EGF was obtained after taking intersection. Kaplan-Meier method showed that OS time of AML patients in EGF high expression group was decreased than that in EGF low expression group, and the difference was statistically significant( P = 0.044). Conclusions:EGF may be an important diagnosis and treatment target of AML and may become a potential biomarker for clinical treatment and prognosis prediction of AML.

3.
China Pharmacy ; (12): 413-418, 2023.
Article in Chinese | WPRIM | ID: wpr-962483

ABSTRACT

OBJECTIVE To study the intervention effect and metabolic mechanism of Mongolian medicine Echinops sphaerocephalus extract on D-galactose-induced osteoporosis. METHODS Thirty-six 12-week-old male Wistar rats were selected and randomly divided into blank group, model group, Gushukang group, E. sphaerocephalus high-dose, medium-dose and low- dose groups, with 6 rats in each group. Except for blank group, other groups were intraperitoneally injected with D-galactose at 120 mg/kg per day. After 8 weeks of continuous injection, E. sphaerocephalus high-dose, medium-dose and low-dose groups were given drugs intragastrically at dose of 878, 439, 219.5 mg/kg, respectively. Gushukang group was given Gushukang 105.1 mg/kg intragastrically, once a day, for consecutive 8 weeks. After last administration, blood was collected from the abdominal aorta. Enzyme-linked immunosorbent assay was used to measure the contents of bone metabolism indexes [hydroxyproline (HYP), alkaline phosphatase (ALP)] and oxidative stress indexes [total antioxidant capacity (TAOC), superoxide dismutase (SOD), malondialdehyde (MDA)] in serum of rats. Positron emission tomography/computedtomography (PET/CT) was used to analyze the changes of bone microstructure in right tibia bone. Meanwhile, metabolomic technology was used to study the regulation effect of E. sphaerocephalus on osteoporosis model rats. RESULTS Compared with blank group, HYP, ALP, MDA, ratio of bone surface to bone volume (BS/BV), and trabecular separation (Tb·Sp) in model group were significantly increased (P<0.05), while TAOC, SOD, bone mineral density (BMD), bone volume fraction (BVF), trabecular E-mail:Xpfdc153@163.com thickness (Tb·Th) and trabecular number (Tb·N) were significantly decreased (P<0.05). Compared with model group, above indexes of administration groups were all reversed to different extents. The results of metabonomics study showed that after intervened with the extract of E. sphaerocephalus, 18 metabolites such as arachidonic acid, phenylalanine, tyrosine, tryptophan, isoleucine and uric acid in the serum of rats changed significantly, involving 15 metabolic pathways such as arachidonic acid, phenylalanine and tyrosine, of which arachidonic acid metabolism, phenylalanine metabolism and tyrosine metabolism were the main influencing pathways. CONCLUSIONS E. sphaerocephalus extract can effectively improve D-galactose-induced oxidative stress and the deterioration of bone microstructure, which interferes with metabolic pathways such as arachidonic acid metabolism and amino acid metabolism.

4.
Cancer Research on Prevention and Treatment ; (12): 567-572, 2023.
Article in Chinese | WPRIM | ID: wpr-986232

ABSTRACT

Objective To explore the antitumor small molecules targeting the ubiquitin–proteasome system (UPS) on the basis of active molecules from traditional Chinese medicine. Methods UbG76V-GFP stably expressing cell line was constructed to screen novel small molecule inhibitors targeting UPS. The fluorogenic substrates of Suc-LLVY-AMC, Z-LLE-AMC, and Boc-LRR-AMC were used to assess the effect of dioscin on the 20S proteasome hydrolase activity. The Ub-AMC substrate was used to evaluate the effect of dioscin on the intracellular deubiquitinating enzyme activity. Western blot was used to detect the effect of dioscin on intracellular ubiquitination levels. CCK-8 and colony formation assays were used to detect the inhibitory effect of dioscin on the tumor cell proliferation. Results Dioscin is a UPS inhibitor discovered through the UbG76V-GFP reporter system. It enhances intracellular ubiquitination and inhibits tumor cell proliferation and colony formation by targeting deubiquitinating enzymes. Conclusion Dioscin could significantly inhibit tumor cell proliferation by targeting ubiquitin–proteasome.

5.
Organ Transplantation ; (6): 364-2023.
Article in Chinese | WPRIM | ID: wpr-972926

ABSTRACT

Acute myeloid leukemia (AML) is a group of highly-heterogeneous clonal diseases. Chemotherapy and hematopoietic stem cell transplantation are considered as effective treatment for AML. For high-risk AML patients, allogeneic hematopoietic stem cell transplantation is an effective therapeutic option. However, some AML patients may still face the problem of disease recurrence after hematopoietic stem cell transplantation. A majority of recurrent patients cannot be effectively treated by chemotherapy or secondary transplantation, which is the main cause of death after allogeneic hematopoietic stem cell transplantation. Therefore, it is of significance to strengthen follow-up of AML patients after allogeneic hematopoietic stem cell transplantation and implement appropriate measures to prevent postoperative recurrence. In this article, the monitoring, drug prevention and cell therapy of recurrence after allogeneic hematopoietic stem cell transplantation in high-risk AML patients were reviewed, aiming to provide reference for improving clinical prognosis of high-risk AML patients undergoing allogeneic hematopoietic stem cell transplantation.

6.
Chinese Medical Journal ; (24): 2576-2586, 2023.
Article in English | WPRIM | ID: wpr-1007564

ABSTRACT

BACKGROUND@#Steroid receptor-associated and regulated protein (SRARP) suppresses tumor progression and modulates steroid receptor signaling by interacting with estrogen receptors and androgen receptors in breast cancer. In endometrial cancer (EC), progesterone receptor (PR) signaling is crucial for responsiveness to progestin therapy. The aim of this study was to investigate the role of SRARP in tumor progression and PR signaling in EC.@*METHODS@#Ribonucleic acid sequencing data from the Cancer Genome Atlas, Clinical Proteomic Tumor Analysis Consortium, and Gene Expression Omnibus were used to analyze the clinical significance of SRARP and its correlation with PR expression in EC. The correlation between SRARP and PR expression was validated in EC samples obtained from Peking University People's Hospital. SRARP function was investigated by lentivirus-mediated overexpression in Ishikawa and HEC-50B cells. Cell Counting Kit-8 assays, cell cycle analyses, wound healing assays, and Transwell assays were used to evaluate cell proliferation, migration, and invasion. Western blotting and quantitative real-time polymerase chain reaction were used to evaluate gene expression. The effects of SRARP on the regulation of PR signaling were determined by co-immunoprecipitation, PR response element (PRE) luciferase reporter assay, and PR downstream gene detection.@*RESULTS@#Higher SRARP expression was significantly associated with better overall survival and disease-free survival and less aggressive EC types. SRARP overexpression suppressed growth, migration, and invasion in EC cells, increased E-cadherin expression, and decreased N-cadherin and Wnt family member 7A ( WNT7A ) expression. SRARP expression was positively correlated with PR expression in EC tissues. In SRARP -overexpressing cells, PR isoform B (PRB) was upregulated and SRARP bound to PRB. Significant increases in PRE-based luciferase activity and expression levels of PR target genes were observed in response to medroxyprogesterone acetate.@*CONCLUSIONS@#This study illustrates that SRARP exerts a tumor-suppressive effect by inhibiting the epithelial-mesenchymal transition via Wnt signaling in EC. In addition, SRARP positively modulates PR expression and interacts with PR to regulate PR downstream target genes.


Subject(s)
Female , Humans , Receptors, Progesterone/metabolism , Proteomics , Cell Line, Tumor , Endometrial Neoplasms/metabolism , Cell Proliferation/genetics , Luciferases/pharmacology , Gene Expression Regulation, Neoplastic/genetics
7.
Chinese Journal of Biotechnology ; (12): 1096-1106, 2023.
Article in Chinese | WPRIM | ID: wpr-970425

ABSTRACT

L-asparaginase (L-ASN) is widely applied in the treatment of malignant tumor and low-acrylamide food production, however, the low expression level hampers its application. Heterologous expression is an effective strategy to increase the expression level of target enzymes, and Bacillus is generally used as the host for efficient production of enzymes. In this study, the expression level of L-asparaginase in Bacillus was enhanced through optimization of expression element and host. Firstly, five signal peptides (SPSacC, SPAmyL, SPAprE, SPYwbN and SPWapA) were screened, among which SPSacC showed the best performance, reaching an activity of 157.61 U/mL. Subsequently, four strong promoters (P43, PykzA-P43, PUbay and PbacA) from Bacillus were screened, and tandem promoter PykzA-P43 showed the highest yield of L-asparaginase, which was 52.94% higher than that of control strain. Finally, three Bacillus expression hosts (B. licheniformis Δ0F3 and BL10, B. subtilis WB800) were investigated, and the maximum L-asparaginase activity, 438.3 U/mL, was reached by B. licheniformis BL10, which was an 81.83% increase compared with that of the control. This is also the highest level of L-asparaginase in shake flask reported to date. Taken together, this study constructed a B. licheniformis strain BL10/PykzA-P43-SPSacC-ansZ capable of efficiently producing L-asparaginase, which laid the foundation for industrial production of L-asparaginase.


Subject(s)
Bacillus licheniformis/metabolism , Asparaginase/genetics , Bacillus/genetics , Protein Sorting Signals , Promoter Regions, Genetic/genetics , Bacillus subtilis/genetics , Bacterial Proteins
8.
Chinese Journal of Clinical Pharmacology and Therapeutics ; (12): 307-313, 2022.
Article in Chinese | WPRIM | ID: wpr-1014881

ABSTRACT

Idiopathic pulmonary fibrosis (IPF) is a chronic progressive disease with unknown etiology, which is characterized by scarring of lung parenchyma, leading to reduced quality of life and premature death. At present, some studies have confirmed that hypothyroidism (HT) may play a role in the development of fibrosis. Many animal experiments have proved that thyroid hormone (TH) can inhibit pulmonary fibrosis by regulating glucose metabolism, improving mitochondrial function and inhibiting inflammation. This paper summarizes the correlation between TH and IPF, and deeply understands the relationship between TH and IPF, in order to have new treatment strategies for IPF in the future.

9.
Chinese Journal of Clinical Pharmacology and Therapeutics ; (12): 709-714, 2022.
Article in Chinese | WPRIM | ID: wpr-1014838

ABSTRACT

IPF is a chronic progressive interstitial lung disease of unknown etiology and poor prognosis, and despite receive treatment, most patients consideration are likely to progress or worsen. Integrins are heterodimer cell surface proteins that are promising therapeutic targets for intervention in pulmonary fibrosis. Alphav integrins are central to the development of fibrosis because they activate latent TGF-β, a known pro-fibrosis cytokine. The alphav subunit may form heterodimers with the β1, β3, β5, β6, or β8 subunits, one or more of which are essential for the development of pulmonary fibrosis, but their relative importance is unclear. This review summarizes the knowledge of the association of pulmonary fibrosis with alpha-val-integrins, as well as emerging preclinical studies and clinical trials of alpha-fibrosis inhibitors.

10.
Chinese Journal of Practical Nursing ; (36): 1521-1527, 2022.
Article in Chinese | WPRIM | ID: wpr-954885

ABSTRACT

Objective:To explore the current status of mental workload and its relationship with work engagement and fatigue, as well as the impact path among the three.Methods:Clinical nurses from six tertiary hospitals including Shanghai Traditional Chinese Medicine Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, etc. were selected to conduct a cross-sectional survey using convenience sampling method from February to March 2020. They were investigated by general information questionnaire, NASA Task Load Index (NASA-TLX), Utrecht Work Engagement Scale (UWES), and Fatigue Scale-14 (FS-14).Results:The total mental workload score of 776 clinical nurses was 76.50(69.00, 84.00). Single factor analysis showed that clinical nurses of different ages, marriage and childbirth status, education level, professional title and working years had different mental workload ( Z = -2.61, H values were 10.22-22.41, all P<0.01). Bivariate analysis revealed that the mental workload of clinical nurses was positively correlated with work engagement ( r = 0.27, P<0.01) and fatigue ( r = 0.23, P<0.01), and work engagement and fatigue were negatively correlated ( r = -0.23, P<0.01). Mediation effect analysis demonstrated that mental workload had a positive predictive effect on fatigue ( β = 0.39, P<0.01) and work engagement ( β = 0.35, P<0.01); the suppressing effect of work engagement between mental workload and fatigue, the absolute value of the ratio of the suppressing effect to the direct effect was |-0.17/0.39|. Conclusions:The mental workload of clinical nurses is at relatively high level. Hospital administrators can partially improve the fatigue state of clinical nurses with high mental load through the adjustment effect of work engagement.

11.
International Journal of Traditional Chinese Medicine ; (6): 606-609, 2022.
Article in Chinese | WPRIM | ID: wpr-954355

ABSTRACT

The existing regulations and systems of the Swedish Medical Products Agency (MPA) have clear provisions on the definition, classification and listed on the market procecure of pharmaceutical products, and the supervision strictly follows the EU standards. Traditional Chinese Medicine (TCM) products belong to the category of Swedish Herbal Medicine Products (HMP) or Traditional Herbal Medicine Products (THMP) and are under the supervision of Swedish Pharmaceutical Products Administration (MPA). This paper analyzes the classification, relevant regulations and registration procecures of TCM products in Sweden. It is suggests that TCM enterprises should fully understand the EU regulations and guidance regulations before listed on the market of TCM products. They should also clarify the product category, and provide sufficient and accurate evidence. In the application process, they should pay attention to strengthening communication with the drug administration units of Sweden.

12.
Journal of Leukemia & Lymphoma ; (12): 509-512, 2022.
Article in Chinese | WPRIM | ID: wpr-953993

ABSTRACT

Acute lymphoblastic leukemia (ALL) is a malignant tumor dominated by B-cell or T-cell proliferation, of which 80% is the malignant proliferation of B-lymphocytes, and it can be more commonly seen in children. Studies have found that ALL is often accompanied by abnormal molecular biological phenotypes. The study of the molecular biological characteristics of ALL helps the precise diagnosis, prognostic analysis, pathogenesis research and the discovery of new diagnostic markers and therapeutic targets. This article summarizes several molecular markers of adult acute B-lymphoblastic leukemia discovered in recent years, and reviews the clinical significance.

13.
Chinese Journal of Dermatology ; (12): 110-115, 2022.
Article in Chinese | WPRIM | ID: wpr-933520

ABSTRACT

Objective:To investigate clinicopathological features of hypopigmented mycosis fungoides (HMF) and hypopigmented interface T-cell dyscrasia (HITCD) .Methods:A total of 41 patients with cutaneous hypopigmented lymphoproliferative diseases, who had complete clinicopathological data, were collected from Department of Dermatology, the Third People′s Hospital of Hangzhou from January 2015 to September 2020, and the clinicopathological and immunophenotypic features were analyzed. Comparisons of normally distributed measurement data were carried out using t test, comparisons of categorical data using Chi-square test or Fisher′s exact test, and comparisons of ranked data between 2 groups using rank-sum test. Results:All of the 41 patients clinically presented with irregular hypopigmentation, some of which was accompanied by erythema or furfuraceous scales. In terms of pathological features, 21 patients showed infiltration and aggregation of atypical lymphoid cells in the epidermis, which was consistent with typical pathological features of mycosis fungoides, and they were diagnosed with HMF; 20 patients showed vacuolar degeneration of the basal layer, accompanied by infiltration of lymphoid cells and mild epidermotropism, and they were diagnosed with HITCD. All immune cells expressed T-cell phenotype, and epidermal lymphocytes expressed a CD8-dominated phenotype in 14 (67%) cases of HMF and 13 (65%) of HITCD. In the epidermis, the total number of lymphocytes was significantly higher in the HMF group than in the HITCD group ( t= 1.81, P= 0.012) ; in the dermis, the number of CD4 + lymphocytes and CD8 + lymphocytes, and the total number of lymphocytes were all significantly higher in the HMF group than in the HITCD group ( t= 2.64, 1.51, 2.60, P= 0.012, 0.002, 0.001, respectively) . All patients were treated with narrow-band ultraviolet B radiation. Among 34 patients who completed the follow-up, 30 achieved complete clearance of skin lesions without recurrence, including all patients with HITCD, and 4 with HMF achieved partial regression of the lesions. Conclusions:Compared with HMF, HITCD presents different pathological characteristics and benign biological behaviors. Thus, HITCD should be distinguished from HMF as an independent disease. Phototherapy alone is effective for the treatment of HITCD.

14.
Journal of Environmental and Occupational Medicine ; (12): 289-295, 2022.
Article in Chinese | WPRIM | ID: wpr-960406

ABSTRACT

Background Global warming may increase the frequency of compound hot extreme (CHE).However, there is still a lack of studies assessing the associations between CHE and preterm birth (PTB), and the underlying biological mechanisms remain unclear. Objective To estimate the association of exposure to CHE during pregnancy with PTB, and to explore the roles of inflammatory, endothelial dysfunction, and oxidative stress in the association between CHE and PTB. Methods All participants were selected from the Prenatal Environments and Offspring Health (PEOH), a prospective birth cohort conducted in Guangzhou. In this study, a total of 2449 participants who gave birth from May to October in 2014 to 2017 were enrolled, and among them blood samples were collected from 311 preterm (n=43) and full-term (n=268) pregnant women at the time of delivery. A hot day/night was identified as a day when the daily maximum temperature/minimum temperature was higher than its 90th percentile in the study period, and a CHE was defined as having both a hot night and a following hot day. The meteorological data were obtained from the China Meteorological Data Sharing Service System. Anusplin was used to assess the daily maximum temperature, daily minimum temperature, and relative humidity of the participant residence. Enzyme-linked immunosorbent assay (ELISA) was used to measure C reactive protein (CRP), endothelin-1 (ET-1), and malondialdehyde (MDA) levels in maternal serum, and their results were transformed by natural logarithm. A distributed lag nonlinear model was used to investigate the associations of exposures to hot day, hot night, and CHE during pregnancy with PTB at different lag days, and a logistic regression model was used to investigate the associations of CRP, ET-1, and MDA with PTB. Results The incidence rate of PTB was 6.2% in all selected participants. Compared with the non-hot day, the RRs (95%CIs) of CHE in lag 3, 7, and 14 days on PTB were 1.43 (1.12-1.84), 1.24 (1.08-1.43), and 1.17 (1.05-1.30), respectively, and the cumulative effects (% difference) (95%CI) of CHE in lag 14 days on maternal serum CRP, ET-1, and MDA were 0.33% (−0.45%-1.12%), 0.59% (0.11%-1.07%), and 0.57% (0.09%-1.05%), respectively. Compared with the Q1 (lowest quartile) for CRP, ET-1 and MDA, the RRs (95%CIs) of Q4 (highest quartile) for PTB were 1.27 (0.50-3.22), 1.51 (0.61-3.72), and 2.07(0.81-5.27), respectively. Conclusion Maternal exposure to CHE during pregnancy might be associated with an increased risk of PTB. Prenatal exposure to CHE is positively associated with maternal serum CRP, ET-1, and MDA, and the three biochemical indicators are also positively associated with PTB. However, the above conclusions still need further confirmation.

15.
Chinese Journal of Medical Aesthetics and Cosmetology ; (6): 289-291, 2022.
Article in Chinese | WPRIM | ID: wpr-958724

ABSTRACT

Objective:To investigate the clinical experience of using orbital fat pedicle to correct eyebags with the tear trough and palpebromalar groove deformity.Methods:From February 2020 to May 2021, 35 patients with lower blepharoplasty combined with orbital fat-release were treated in the Facial and Neck Plastic Surgery Center of the Plastic Surgery Hospital of Chinese Academy of Medical Sciences, including 4 males and 31 females. Their age ranged from 35 to 63 years, with an average age of 47.5 years. Different degrees of lower eyelid skin laxity, orbital fat herniation, moderate and severe tear trough, palpebromalar groove deformity were observed in all patients. Preoperative examination showed no symptoms such as lower eyelid ectropion and lower eyelid retreat ment. All 35 patients were treated with transcutaneous incision blepharoplasty, in which the orbital septal fat was released, pulled downward and internally fixed to the appropriate position to fill the tear trough and palpebromalar groove.Results:All patients obtained primary healing, no complications such as hematoma, and infection occured. Postoperative follow-up lasted from 3 to 18 months, with an average of 8.6 months. 35 patients′ eye bags with tear trough and palpebromalar groove deformity were obviously alleviated. Unilateral mild eye bag remained in 2 patients in postoperative 1 month, and 2 cases appeared mild lower eyelid ectropion postoperatively, none of these patients received special treatment and recovered after 3 months.Conclusions:Lower blepharoplasty combined with orbital fat release can effectively repair eye bags and correct tear trough and palpebromalar groove deformity.

16.
Chinese Journal of Digestive Endoscopy ; (12): 695-700, 2022.
Article in Chinese | WPRIM | ID: wpr-958307

ABSTRACT

Objective:To study the clinical, endoscopic and histological characteristics of heterotopic gastric mucosa in upper esophagus (HGMUE).Methods:A Total of 177 patients who underwent gastroscopy and were diagnosed as having HGMUE at the Endoscopy Center of Wuhan Union Hospital from January 2017 to December 2017 were included in the study. According to the gastroesophageal reflux disease symptom questionnaire (GERD-Q) scores, patients were divided into the HGMUE group (GERD-Q<8, n=101) and GERD+HGMUE group (GERD-Q≥8, n=76). The data of clinical, endoscopic and histological characteristics were analyzed. Results:Among the 177 HGMUE cases, there were 111 males (62.71%) and 66 females (37.29%), 76 (42.94%) with GERD, and 101 (57.06%) without GERD. The most common symptom was continuous clearing throat [54.24% (96/177)], followed by foreign body sensations of throat [48.59% (86/177)], and gastroesophageal reflux symptoms such as heartburn, chest pain, indigestion, acid reflux [48.59% (86/177)]. In the HGMUE group, the occurrence rate of clearing throat was the highest [42.57% (43/101)], then foreign body sensations of throat accounted for 33.66% (34/101), and gastroesophageal reflux symptoms was 27.72% (28/101). In the HGUME+GERD group, the most common symptom was gastroesophageal reflux symptoms [76.32% (58/76)], then clearing throat [69.74% (53/76)] and foreign body sensations of throat [68.42% (52/76)]. Under gastroscopy, 177 heterotopic gastric lesions were found under gastroscopy with orange-red round, oval or elongated island like ones, most of which were flat and a few slightly protruded from the peripheral plane. There were 132 (74.58%) single-lesion cases, 38 (21.47%) 2-lesion, and 7 (3.95%) 3- or more-lesion cases; there were 37 (20.90%) small lesions (maximum diameter <0.5 cm), and 74 (41.81%) median-size lesions (maximum diameter of 0.5-1.0 cm), and 66 (37.3%) larger lesions (maximum diameter >1.0 cm). Among the 30 [16.95% (30/177)] samples of mucosal tissue, 15 [50.00% (15/30)] were mainly cardia gland, 8 [26.67% (8/30)] were mainly pyloric gland, 6 [20.00% (6/30)] were mixed type, and 1 [3.33% (1/30)] was squamous epithelium. In the immunohistochemical test, 20 cases [66.67% (20/30)] showed positive of H +/K +-ATPase, and 10 cases [33.33% (10/30)] were negative. Conclusion:HGMUE is more common in male patients, and may be combined with GERD. Among them, patients with combined GERD are more likely to develop laryngopharyngeal reflux. The heterotopic gastric mucosas lesions are orange-red round, oval or elongated island-like under gastroscopy, and most of them are flat, single and median- or large-sized. Histological types are mostly fundic glands, and H +/K +-ATPase positive is more common. It is speculated that acid secretion may be an important factor leading to throat symptoms.

17.
Chinese Journal of Biotechnology ; (12): 1351-1359, 2022.
Article in Chinese | WPRIM | ID: wpr-927785

ABSTRACT

Anaerobic ammonia oxidation (ANAMMOX) process is an efficient and low-cost biological nitrogen removal process. However, it still faces some challenges in mainstream applications due to the limitation of substrate types and nitrate accumulation. In recent years, the combined process of anammox has been widely studied to solve the above problems. In this paper, the combined processes of anammox developed in recent years are reviewed, and discussed from the process principle, advantages and disadvantages, influencing factors, process extensibility and the key bottlenecks existing in the promotion and application, as well as the relevant work of the subject group. Finally, we take an outlook on the development of the combined anaerobic ammonia oxidation process in municipal domestic wastewater treatment.


Subject(s)
Ammonium Compounds , Anaerobiosis , Bioreactors , Denitrification , Nitrogen , Oxidation-Reduction , Sewage , Wastewater
18.
Chinese Journal of Dermatology ; (12): 790-797, 2021.
Article in Chinese | WPRIM | ID: wpr-911522

ABSTRACT

Objective:To summarize clinical characteristics of and treatment experience with patients with critical illnesses in a dermatological ward.Methods:All patients with serious or life-threatening conditions, who were hospitalized at the dermatological ward of the Second Xiangya Hospital of Central South University from July 9, 2011 to December 31, 2020, were collected, and their clinical data were retrospectively analyzed. Demographic characteristics, disease types and proportions, main complications, causes of serious or life-threatening conditions, important treatment measures and outcomes were summarized, and causes of death were also analyzed and discussed.Results:A total of 1 057 patients with critical illnesses were collected, with a male-to-female ratio of 1∶1.11, and 64.81% of them aged 18 to 65 years. The types of diseases mainly included drug eruptions (332 cases) , connective tissue diseases (226 cases) , bullous skin diseases (104 cases) , psoriasis (57 cases) , erythroderma (45 cases) , infectious skin diseases (67 cases) , etc. Among them, psoriasis (39 cases) and erythroderma (32 cases) mostly occurred in males, and connective tissue diseases (168 cases) mostly occurred in females. Common complications mainly involved infections, important organ damage or dysfunction, hypoalbuminemia, and fluid, electrolyte and acid-base imbalances. A total of 94 patients were diagnosed with life-threatening conditions, which were found to be mainly caused by primary skin diseases, hematologic abnormalities, respiratory failure, nervous system abnormalities, renal failure, sepsis, fluid, electrolyte and acid-base imbalances, etc. During the management of critical illnesses, 43 patients were treated with high-dose glucocorticoid pulse therapy, 264 were treated with gamma-globulin pulse therapy, 355 were transfused with other blood products, and 34 received special therapies such as hemoperfusion/immunoadsorption therapy, plasma exchange, dialysis, artificial liver support therapy; 42 patients were transferred to the intensive care unit (ICU) , 12 were transferred to the department of surgery for operations, and 12 were transferred to the department of obstetrics and gynecology for delivery or induction of labor. After treatment, 989 patients (93.57%) achieved improvement and were discharged. A total of 14 patients (1.32%) died, of whom 7 died of secondary sepsis, 2 died of severe pulmonary infections, 2 died of asphyxia caused by respiratory mucosa shedding-induced airway obstruction, the other 3 died of gastrointestinal hemorrhage, cerebral hemorrhage and neuropsychiatric systemic lupus erythematosus, respectively.Conclusions:Critical cases in the dermatological ward mainly suffered from serious skin diseases such as severe drug eruptions, connective tissue diseases and bullous skin diseases, as well as complications such as severe underlying diseases, severe organ dysfunction, sepsis or severe fluid, electrolyte and acid-base imbalances. In terms of treatment, it is of critical significance to make a clear diagnosis and assess the severity of disease as early as possible, monitor and prevent possible complications, and to consult with specialists in relevant disciplines in time.

19.
Chinese Journal of Endocrine Surgery ; (6): 362-367, 2021.
Article in Chinese | WPRIM | ID: wpr-907807

ABSTRACT

Objective:To investigate the relationship between preoperative serum thyroglobulin (Tg) and clinical data with the risk of cervical lymph node metastasis in patients with papillary thyroid carcinoma (PTC) .Methods:Data of 395 PTC patients who underwent surgery from Feb. 2016 to Jun. 2019 at the Second Affiliated Hospital of Soochow University were retrospectively analyzed. Based on whether cervical lymph nodes had metastasis, patients were classified into central lymph node metastasis positive group ( n=195 cases) , central lymph node metastasis negative group ( n=200 cases) , lateral lymph node metastasis positive group ( n=72 cases) , and lateral lymph node metastasis negative group ( n=323 cases) .Then the relationship between age, sex, multifocality, tumor diameter, capsular invasion, preoperative TSH and preoperative Tg with lymph node metastasis were analyzed by SPSS. Comparisons between groups were performed by χ2 test and rank sum test. Prediction efficiency of the preoperative Tg and Logistic regression model was estimated by receiver operating characteristic (ROC) curve. A total of 100 PTC patients confirmed by pathological results in the Second Affiliated Hospital of Soochow University from Jul. 2019 to Apr. 2020 were selected as the validation data. Results:Multi-factor Logistic regression showed that age, tumor diameter, capsular invasion and preoperative Tg were independent risk factors of central cervical lymphatic metastasis ( P<0.05) ; Tumor diameter, capsular invasion, central cervical lymphatic metastasis and preoperative Tg were independent risk factors of lateral cervical lymphatic metastasis ( P<0.05) . The area under the ROC curve (AUC) for diagnosing central lymph node metastasis by preoperative Tg was 0.710, with a sensitivity of 49.2%, and specificity of 88.5%. The AUC for diagnosing lateral lymph node metastasis by preoperative Tg was 0.728, with a sensitivity of 59.7%, and specificity of 89.5%. The AUC for diagnosing central lymph node metastasis by the prediction model was 0.773, with a sensitivity of 78.5%, and specificity of 64.5%.The AUC for diagnosing lateral lymph node metastasis by the prediction model was 0.869, with a sensitivity of 84.7%, and specificity of 70.3%. Conclusions:The preoperative serum Tg level is correlated with cervical lymph node metastasis in PTC patients. But the Logistic regression model based on preoperative Tg and other independent risk factors shows a better predictive value.

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Chinese Journal of Dermatology ; (12): 300-307, 2021.
Article in Chinese | WPRIM | ID: wpr-885216

ABSTRACT

Objective:To identify genes interacting with the ubiquitin-conjugating enzyme E2S (UBE2S) in melanoma, and to explore the molecular mechanisms regulating the biological behavior of melanoma cells by UBE2S.Methods:Cultured A375 melanoma cells were divided into 2 groups to be transfected with LV-UBE2S-RNAi (14011-1) -containing lentivirus (gene knockdown group) and a negative control lentivirus CON053 (negative control group), respectively, and the UBE2S gene-knockdown cell line and negative control cell line were established. RNA was extracted from the two cell lines, purified, fragmented, and hybridized with GeneChip probes, followed by washing and dyeing, and then microarray data were obtained. Ingenuity pathway analysis (IPA) software was used to further analyze the gene expression profiling data to identify potential genes interacting with UBE2S. Western blot analysis was performed to verify the downstream molecules regulated by UBE2S. A two-tailed t test was used to screen for differentially expressed genes. Results:A total of 512 differentially expressed genes with a|fold change| > 2 and a P value < 0.05 were screened out between the gene knockdown group and negative control group, including 247 upregulated genes and 265 downregulated genes. IPA of differentially expressed genes revealed that interferon signaling and liver X receptor (LXR) /retinoid X receptor (RXR) activation pathways were significantly activated, while eukaryotic initiation factor-2 (EIF2) signaling and nuclear factor-κB (NF-κB) signaling pathways were inhibited. Among the upstream regulators, IFNA2 was predicted to be strongly activated, and NF-κB (complex) to be strongly inhibited. Based on the above bioinformatics analysis results, it was suggested that the UBE2S gene may exert some effects in melanoma cells by regulating the expression of IFITM1, STAT1, ISG15 and TNFRSF11B genes. Western blot analysis showed that IFITM1 protein was not expressed in A375 cells before and after the UBE2S gene knockdown. After the UBE2S gene knockdown, ISG15 protein expression was upregulated by 19.94 times, STAT1 protein expression was upregulated by 1.47 times, and TNFRSF11B protein expression was downregulated by 79.1%. Conclusion:UBE2S may interact with STAT1, ISG15 and TNFRSF11B to regulate the biological behavior of melanoma cells.

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