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1.
J. venom. anim. toxins incl. trop. dis ; 27: e20200182, 2021. tab, graf, ilus
Article in English | LILACS, VETINDEX | ID: biblio-1250254

ABSTRACT

The accessory ß1 subunits, regulating the pharmacological and biophysical properties of BK channels, always undergo post-translational modifications, especially glycosylation. To date, it remains elusive whether the glycosylation contributes to the regulation of BK channels by ß1 subunits. Methods: Herein, we combined the electrophysiological approach with molecular mutations and biochemical manipulation to investigate the function roles of N-glycosylation in ß1 subunits. Results: The results show that deglycosylation of ß1 subunits through double-site mutations (ß1 N80A/N142A or ß1 N80Q/N142Q) could significantly increase the inhibitory potency of iberiotoxin, a specific BK channel blocker. The deglycosylated channels also have a different sensitivity to martentoxin, another BK channel modulator with some remarkable effects as reported before. On the contrary to enhancing effects of martentoxin on glycosylated BK channels under the presence of cytoplasmic Ca2+, deglycosylated channels were not affected by the toxin. However, the deglycosylated channels were surprisingly inhibited by martentoxin under the absence of cytoplasmic Ca2+, while the glycosylated channels were not inhibited under this same condition. In addition, wild type BK (α+ß1) channels treated with PNGase F also showed the same trend of pharmacological results to the mutants. Similar to this modulation of glycosylation on BK channel pharmacology, the deglycosylated forms of the channels were activated at a faster speed than the glycosylated ones. However, the V1/2 and slope were not changed by the glycosylation. Conclusion: The present study reveals that glycosylation is an indispensable determinant of the modulation of ß1-subunit on BK channel pharmacology and its activation. The loss of glycosylation of ß1 subunits could lead to the dysfunction of BK channel, resulting in a pathological state.(AU)


Subject(s)
Glycosylation , Peptide-N4-(N-acetyl-beta-glucosaminyl) Asparagine Amidase , Mutation , Pharmacology
2.
Article in Chinese | WPRIM | ID: wpr-879874

ABSTRACT

OBJECTIVE@#To study the association of serum levels of trace elements with core symptoms in children with autism spectrum disorder (ASD).@*METHODS@#From September 2018 to September 2019, an investigation was performed for 1 020 children with ASD and 1 038 healthy children matched for age and sex in the outpatient service of grade A tertiary hospitals and special education institutions in 13 cities of China. Autism Behavior Checklist (ABC), Social Responsiveness Scale (SRS), and Childhood Autism Rating Scale (CARS) were used to assess the core symptoms of the children with ASD. The inductively coupled plasma mass spectrometry was used to measure serum levels of trace elements magnesium, iron, copper, and zinc.@*RESULTS@#The children with ASD had significantly lower serum levels of magnesium, copper, and zinc than the healthy children (@*CONCLUSIONS@#The serum levels of magnesium and zinc may be associated with core symptoms in children with ASD, which requires further studies. The nutritional status of trace elements should be monitored for children with ASD in clinical practice.


Subject(s)
Autism Spectrum Disorder , Child , China , Copper/analysis , Humans , Trace Elements/analysis , Zinc
3.
Article in English | WPRIM | ID: wpr-922388

ABSTRACT

OBJECTIVES@#To study the natural history of spinal muscular atrophy (SMA) in Chongqing and surrounding areas, China, and to provide a clinical basis for comprehensive management and gene modification therapy for SMA.@*METHODS@#A retrospective analysis was performed on the medical data and survival status of 117 children with SMA.@*RESULTS@#Of the 117 children, 62 (53.0%) had type 1 SMA, 45 (38.5%) had type 2 SMA, and 10 (8.5%) had type 3 SMA, with a median age of onset of 2 months, 10 months, and 15 months, respectively. Compared with the children with type 2 SMA or type 3 SMA, the children with type 1 SMA had significantly shorter time to onset, consultation, and confirmed diagnosis (@*CONCLUSIONS@#There are differences in clinical manifestations and survival rates among children with different types of SMA. The children with type 1 SMA have a low survival rate, and those with type 2 SMA may have non-linear regression of motor ability. Early identification and management of SMA should be performed in clinical practice.


Subject(s)
Child , Homozygote , Humans , Infant , Muscular Atrophy, Spinal/genetics , Retrospective Studies , Sequence Deletion , Spinal Muscular Atrophies of Childhood/genetics
4.
Acta Pharmaceutica Sinica ; (12): 703-710, 2021.
Article in Chinese | WPRIM | ID: wpr-876537

ABSTRACT

The abnormal activation and mutation of signal transducer and activator transcription (STAT) proteins has been implicated in multiple lymphomas. The research discovery and clinical application of STATs inhibitors have become an important strategy for treating lymphoma. This review introduces the abnormal activation and mutation of STATs in multiple malignant lymphomas, and focuses on reviewing the latest screening strategies targeting STATs and its clinical application in the treatment of lymphoma, providing references for the further development of STATs inhibitors.

5.
Article in Chinese | WPRIM | ID: wpr-875959

ABSTRACT

Media convergence is the combination and convergence of every element of media in forms of breakdown of traditional classification, formats and distribution etc. It means the blending of its contents, consumers and operations in full and a new media was developed named as new media. The paper tries to explore the media convergence by starting from the paper-printed media, especially from the scientific journals. It is obvious that the basement is the electronization of media, comprehensive use of multi-technology is the fundamental tools, and it made the results of the inevitability of deep changes in term of thoughts, mindset and managerial principles as well. At the same time, the adverse effect of media convergence consequently coming from the freedom and openness of media convergence will be considered and avoided, so the surveillance of administrative functions and technicals should be adopted or developed accordingly.

6.
Article in Chinese | WPRIM | ID: wpr-873303

ABSTRACT

Objective::To explore the potential active ingredients and possible anti-breast cancer mechanism of Glycyrrhizae Radix et Rhizome and Aurantii Fructus based on the method of network pharmacology. Method::The main potential targets of Glycyrrhizae Radix et Rhizome and Aurantii Fructus on breast cancer were summarized by comparing the Glycyrrhizae Radix et Rhizome-Aurantii Fructus active ingredients screened from Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform(TCMSP) and breast cancer targets searched in Therapeutic Target Database (TTD). Cytoscape 3.7.1 software was used to establish a Glycyrrhizae Radix et Rhizome-Aurantii Fructus active ingredients-target-disease network and perform topology analysis based on the network. Result::According to related conditions of drug-like (DL) and oral bioavailability (OB), the network of Glycyrrhizae Radix et Rhizome-Aurantii Fructus active ingredients-breast cancer target was obtained, covering a total of 133 nodes, 116 chemical components and 17 breast cancer drug targets, 109 active components of Glycyrrhizae Radix et Rhizome interacting with breast cancer drug target, 6 active ingredients of Aurantii Fructus interacting with breast cancer drug targets, and 1 common active ingredient of Aurantii Fructus and Glycyrrhizae Radix et Rhizome interacting with breast cancer targets. There were 400 breast cancer target-interaction target pairs in the network diagram. Conclusion::The anti-breast cancer effect of Glycyrrhizae Radix et Rhizome and Aurantii Fructus is based on the overall pharmacodynamic effect of multi-component, multi-pathway and multi-target, the investigation of its potential anti-breast cancer mechanism provides theoretical basis for further experimental research.

7.
Article in Chinese | WPRIM | ID: wpr-828428

ABSTRACT

The WD40 transcription factor family is a gene superfamily widely found in eukaryotes, which is closely related to plant growth and development regulation. It has been reported that the WD40 transcription factor was involved in the synthesis of anthocyanins, which is one of the vital components of safflower flavonoid compounds. In this study, 40 CtWD40 members in the safflower genome were identified though bioinformatics tools and gene expression analysis methods. According to the WD40 protein sequence and phylogenetic characteristics of Arabidopsis and other plants, the safflower CtWD40 family was classified into 7 subfamilies. Conservative motif analysis was used to reveal the specific conserved motifs and gene structures of each subfamily member, and there exist a certain degree of similarities in the conserved motifs and gene structure between the closely related family members. Subsequently, the search for cis-acting elements of gene promoters found CtWD40-specific promoter elements, revealing the metabolic pathways which may involve. Next, enrichment of function analysis was employed to analyze the functional categories and cellular localization of the CtWD40 protein. Furthermore, the interactions between CtWD40 proteins predicted its potential regulatory function. Finally, 19 members of the safflower CtWD40 subfamily were analyzed by qRT-PCR, the result showed the expression patterns of these members were different in diverse tissue and flowering period. This study provides a basis for the functional and expression research of the CtWD40 genes.


Subject(s)
Carthamus tinctorius , Computational Biology , Gene Expression Profiling , Gene Expression Regulation, Plant , Genome, Plant , Multigene Family , Phylogeny , Plant Proteins , Genetics , Transcription Factors , Genetics
8.
Chinese Medical Journal ; (24): 73-80, 2020.
Article in English | WPRIM | ID: wpr-877994

ABSTRACT

BACKGROUND@#Arteriosclerosis obliterans (ASO) is a major cause of adult limb loss worldwide. Autophagy of vascular endothelial cell (VEC) contributes to the ASO progression. However, the molecular mechanism that controls VEC autophagy remains unclear. In this study, we aimed to explore the role of the GRB2 associated binding protein 1 (GAB1) in regulating VEC autophagy.@*METHODS@#In vivo and in vitro studies were applied to determine the loss of adapt protein GAB1 in association with ASO progression. Histological GAB1 expression was measured in sclerotic vascular intima and normal vascular intima. Gain- and loss-of-function of GAB1 were applied in VEC to determine the effect and potential downstream signaling of GAB1.@*RESULTS@#The autophagy repressor p62 was significantly downregulated in ASO intima as compared to that in healthy donor (0.80 vs. 0.20, t = 6.43, P < 0.05). The expression level of GAB1 mRNA (1.00 vs. 0.24, t = 7.41, P < 0.05) and protein (0.72 vs. 0.21, t = 5.97, P < 0.05) was significantly decreased in ASO group as compared with the control group. Loss of GAB1 led to a remarkable decrease in LC3II (1.19 vs. 0.68, t = 5.99, P < 0.05), whereas overexpression of GAB1 significantly led to a decrease in LC3II level (0.41 vs. 0.93, t = 7.12, P < 0.05). Phosphorylation levels of JNK and p38 were significantly associated with gain- and loss-of-function of GAB1 protein.@*CONCLUSION@#Loss of GAB1 promotes VEC autophagy which is associated with ASO. GAB1 and its downstream signaling might be potential therapeutic targets for ASO treatment.


Subject(s)
Adaptor Proteins, Signal Transducing , Adult , Arteriosclerosis Obliterans/genetics , Autophagy , GRB2 Adaptor Protein , Humans , Phosphoproteins/metabolism , Phosphorylation , Protein Binding , Signal Transduction
9.
Article in Chinese | WPRIM | ID: wpr-793272

ABSTRACT

Objective The aim of the present study was to investigate the relationship between the intake of salt and salted food and the infection of Helicobacter pylori (Hp) among 40-69 years old local residents in a county with high gastric cancer risk in Anhui province. Methods From July 2015 to August 2018, we conducted a questionnaire and a serological test for Hp among 40-69 years old local residents in Lujiang county, Anhui province. The questionnaire focused on the consumptions of salt and salted food. The relationship between Hp infection and risk factors was analyzed by gender. Univariate and multivariate logistic regression analysis were used to analyze the relevant influencing factors. Results The Hp infection rate of total local residents was 50.07%. Among male subjects, age, body mass index(BMI), marital status, educational level, job, labor intensity and income had no link to Hp infection (all P>0.05). But among female subjects, BMI was associated with Hp infection ( 2=13.454,P=0.001). Besides, alcohol consumption was a risk factor for Hp infection in male subjects(OR=1.789,95% CI:1.188-2.694,P=0.003). But, high intake of salt and salted food had no effect on Hp infection after adjustment for alcohol consumption variable in men using multivariate analysis (all P>0.05). After adjusted for BMI variable among female individuals, high salt intake (≥9 g/day) (OR=1.462,95% CI:1.060-2.015,P=0.021) and the high salted food intake (≥1 times /day) were risk factors for Hp infection in women(OR=1.560,95% CI:1.021-2.383,P=0.040). Conclusions In one county with high gastric cancer risk in Anhui province, high salt intake (≥9 g/day) and high salted food intake (≥1 times/day) are risk factors for Hp infection among 40-69 years old female local residents.

10.
Chinese Medical Journal ; (24): 1147-1153, 2019.
Article in English | WPRIM | ID: wpr-796442

ABSTRACT

Background:@#Sepsis-3 definitions have been published recently; however, their diagnostic value remains controversial. This study was to assess the accuracy of Sepsis-3 definitions compared to Sepsis-1 definitions by stratifying mortality among adult critically ill patients with suspected infection.@*Methods:@#A multicenter, prospective cohort study was conducted from November 10, 2017 to October 10, 2018, in five Intensive Care Units (ICUs) at four teaching hospitals. Thirty-day mortality was compared across categories for both Sepsis-3 definitions and Sepsis-1 definitions, which were evaluated by logistic regression analysis followed by measurement of the area under the receiver operating characteristic curve (AUROC) for predicting 30-day mortality rates.@*Results:@#Of the 749 enrolled patients, 644 (85.9%) were diagnosed with sepsis according to the Sepsis-1 definitions. Among those patients, 362 were diagnosed with septic shock (362/749, 48.3%). However, according to the Sepsis-3 definitions, there were 483 patients with a diagnosis of sepsis (483/749, 64.5%), among whom 299 patients were diagnosed with septic shock (299/749, 39.9%). According to the Sepsis-3 definitions, sepsis (sepsis and septic shock) patients had higher 30-day mortality (41.8%) than sepsis patients according to the Sepsis-1 definitions (31.8%, χ2 = 5.552, P = 0.020). The AUROC of systemic inflammatory response syndrome (SIRS) and quick sequential organ failure assessment (qSOFA) scores with regard to 30-day mortality rates were 0.609 (0.566–0.652) and 0.694 (0.654–0.733), respectively. However, the AUROC of SOFA scores (0.828 [0.795–0.862]) were significantly higher than that of SIRS or qSOFA scores (P < 0.001).@*Conclusion:@#In adult critically ill patients with suspected infection, the Sepsis-3 definitions were relatively accurate in stratifying mortality and were superior to the Sepsis-1 definitions.@*Trial Registration:@#www.chictr.org.cn (ChiCTR-OOC-17013223).

11.
Chinese Medical Journal ; (24): 1147-1153, 2019.
Article in English | WPRIM | ID: wpr-774782

ABSTRACT

BACKGROUND@#Sepsis-3 definitions have been published recently; however, their diagnostic value remains controversial. This study was to assess the accuracy of Sepsis-3 definitions compared to Sepsis-1 definitions by stratifying mortality among adult critically ill patients with suspected infection.@*METHODS@#A multicenter, prospective cohort study was conducted from November 10, 2017 to October 10, 2018, in five Intensive Care Units (ICUs) at four teaching hospitals. Thirty-day mortality was compared across categories for both Sepsis-3 definitions and Sepsis-1 definitions, which were evaluated by logistic regression analysis followed by measurement of the area under the receiver operating characteristic curve (AUROC) for predicting 30-day mortality rates.@*RESULTS@#Of the 749 enrolled patients, 644 (85.9%) were diagnosed with sepsis according to the Sepsis-1 definitions. Among those patients, 362 were diagnosed with septic shock (362/749, 48.3%). However, according to the Sepsis-3 definitions, there were 483 patients with a diagnosis of sepsis (483/749, 64.5%), among whom 299 patients were diagnosed with septic shock (299/749, 39.9%). According to the Sepsis-3 definitions, sepsis (sepsis and septic shock) patients had higher 30-day mortality (41.8%) than sepsis patients according to the Sepsis-1 definitions (31.8%, χ = 5.552, P = 0.020). The AUROC of systemic inflammatory response syndrome (SIRS) and quick sequential organ failure assessment (qSOFA) scores with regard to 30-day mortality rates were 0.609 (0.566-0.652) and 0.694 (0.654-0.733), respectively. However, the AUROC of SOFA scores (0.828 [0.795-0.862]) were significantly higher than that of SIRS or qSOFA scores (P < 0.001).@*CONCLUSION@#In adult critically ill patients with suspected infection, the Sepsis-3 definitions were relatively accurate in stratifying mortality and were superior to the Sepsis-1 definitions.@*TRIAL REGISTRATION@#www.chictr.org.cn (ChiCTR-OOC-17013223).

12.
Article in Chinese | WPRIM | ID: wpr-743433

ABSTRACT

Objective · To investigate the feasibility of four-dimensional flow MRI (4D flow MRI) in evaluating the hemodynamics of forearm autologous arteriovenous fistula (AVF) in renal dialysis patients. Methods · Forty-five patients from Renal Division of Renji Hospital, Shanghai Jiao Tong University School of Medicine were included. Patients with forearm AVF underwent ultrasonography and MRI. The consistency of 4D flow MRI hemodynamic parameters measured by two radiologists and hemodynamic parameters at the same plane of AVF by 4D flow MRI and ultrasonography were analyzed by paired t test. The morphological parameters of AVF were acquired from black blood sequence, and they were used for Pearson correlation analysis with the hemodynamic parameters obtained from 4D flow MRI. Results · Forty-two patients completed the forearm AVF ultrasonography and MRI successfully.Paired t test showed that the consistency of 4D flow MRI hemodynamic parameters by two radiologists was good (all P=0.000), and all hemodynamic parameters measured by 4D flow MRI and ultrasonography were in good agreement (r=0.292-0.569, all P<0.05) except for the peak flow velocity at anastomosis (r=-0.078, P>0.05). Pearson correlation analysis showed that the cephalic venous flow volume of AVF was correlated with the diameter ratio of the cephalic venous to radial artery and the anastomosis area (r=-0.671, r=0.482, both P<0.05), and the wall shear stress (WSS) near the anastomosis was correlated with the anastomosis angle and wall thickness (r=0.530, r=0.462, both P<0.05). Conclusion · 4D flow MRI can be used to evaluate the hemodynamic parameters of forearm AVF in renal dialysis patients, which can provide a reference for further study of AVF dysfunction.

13.
Article in Chinese | WPRIM | ID: wpr-802111

ABSTRACT

Objective: Jiaotaiwan is a classic prescription in traditional Chinese medicine for insomnia. Modern clinical research has proved its anti-diabetes effect by "the same treatment for different diseases" theory, so it is necessary to study its pharmacological mechanism for anti-diabetes effect. Method: In this study, the integrative pharmacology platform of traditional Chinese medicine (TCMIP) was used to explore the potential target and mechanism of Jiaotaiwan, and construct its core target network for diabetes. Then the enrich analysis of GO and KEGG on key targets was conducted to build the visual multilayer association network of "Jiaotaiwan-active composition-core target-key pathway". Result:28 active ingredients were obtained from Jiaotaiwan in this study. Its anti-diabetes effect was relevant to 187 core targets,including 15 known disease targets such as vasopressin V2 receptor (AVPR2), receptor activity-modifying protein 1 (RAMP1), receptor activity-modifying protein 3 (RAMP3), insulin receptor (INSR), and insulin-like growth factor 1 receptor (IGF1R); as well as 71 predictive drug targets such as cyclin-dependent kinase 9 (CDK9), glucokinase (GCK), NF-kappa-B inhibitor alpha (NFKBIA), NF-kappa-B p100 subunit (NFKB2), and hypoxia inducible factor-1 alpha (HIF1A). Conclusion:The anti-diabetes mechanism of Jiaotaiwan may be associated with activation of adenylate cyclase activity, cellular response to glucagon stimulus, activation of mitogen-activated protein kinase (MAPK) activity, endocrine system, gonadotropin-releasing hormone (GnRH) signaling pathway, Chemokine signaling pathway, phosphatidylinositol 3-kinase-serine/threonine kinases (PI3K-Akt) signaling pathway and other related biological processes and pathways. This study provides a scientific evidence for further study of the anti-diabetes mechanism of Jiaotaiwan.

14.
Article in Chinese | WPRIM | ID: wpr-776699

ABSTRACT

Primary mitochondrial disease is the most common inborn error of metabolism and is highly heterogeneous in terms of clinical manifestations and inheritance pattern. It has high mortality and disability rates. Multiple systems are often involved in this disease, and it is necessary to perform comprehensive evaluation and multidisciplinary management. The Mitochondrial Medicine Society issued the standard for the management of patients with primary mitochondrial disease: consensus statements from the Mitochondrial Medicine Society in 2017. The statements provided recommendations based on such consensus to guide the management and care of patients. This article interprets and summarizes the screening of organs and systems commonly involved in primary mitochondrial disease and the management of patients according to the consensus.


Subject(s)
Consensus , Humans , Mitochondrial Diseases , Societies, Medical
15.
Article in Chinese | WPRIM | ID: wpr-690431

ABSTRACT

<p><b>OBJECTIVE</b>To investigate the role of Twist in regulating the proliferation, migration, and invasion of osteosarcoma cells with different levels of malignancy.</p><p><b>METHODS</b>The baseline expressions of Twist in 3 different osteosarcoma cell lines (143B, MG63 and TE85) were detected using real-time PCR and Western blotting. The cells were infected with the recombinant adenoviruses Ad-Twist or Ad-siTwist for Twist overexpression or knockdown, respectively, and the cell growth curves were drawn to assess the cell proliferation. The migration abilities and invasiveness of the cells were evaluated using wound healing assay and Transwell assay. Luc-labeled 143B cells infected with Ad-Twist or Ad-siTwist were intrathecally injected to establish nude mouse models bearing osteosarcoma xenografts, in which the tumor formation was monitored using living body imaging technique.</p><p><b>RESULTS</b>The baseline expressions of Twist in the 3 osteosarcoma cells were significantly higher than that in C3H10 cells (P<0.05). Twist expression was the highest in 143B cells followed by MG63 cells, and was the lowest in TE85 cells, indicating its positive correlation with the level of malignancy of the osteosarcoma cells. Ad-Twist or Ad-siTwist infection efficiently enhanced or lowered Twist expressions at both mRNA and protein levels in osteosarcoma cells (P<0.05). Twist overexpression resulted in enhanced proliferation, migration and invasion abilities of osteosarcoma cells, and Twist knockdown obviously inhibited the cell proliferation, migration and invasion. In nude mice, 143B cells with Twist overexpression showed accelerated tumor formation compared with the control cells, while Twist knockdown significantly inhibited the tumor formation ability of the cells.</p><p><b>CONCLUSION</b>Twist overexpression can promote the proliferation, migration, invasion and tumorigenicity of osteosarcoma cells.</p>

16.
Chinese Traditional Patent Medicine ; (12): 2529-2533, 2017.
Article in Chinese | WPRIM | ID: wpr-665972

ABSTRACT

AIM To establish the quality standard for Weigela japonica Thunb.var.sinica (Rehd.) Bailey (W.j.).METHODS TLC was adopted in this medicinal material's qualitative identification after morphological identification and microscopic identification.The contents of water,total ash,acid-insoluble ash and extracts were detected according to Chinese Pharmacopoeia methods.Then the contents of scopoletin and total coumarins were determined by HPLC and UV,respectively.RESULTS The morphologies and microscopic characters of W.j.could be distinguished from other same generic plants.The clear TLC spot displayed good resolution.The contents of water,total ash,acid-insoluble ash,water-soluble extract and acid-soluble extract were no more than 12.0%,no more than 2.0%,no more than 0.5%,no less than 5.0% and no less than 4.5%,respectively.Scopoletin and total coumarins showed good linear relationships within the ranges of 1.25-40.0 μg/mL(r =0.999 7)and 2.0-64.0 μg/mL (r =0.999 9),whose average recoveries were 98.19% (RSD =0.90%) and 99.21% (RSD =2.5%),respectively.CONCLUSION This accurate and reliable method can be used for the quality control of W.j..

17.
China Occupational Medicine ; (6): 324-327, 2016.
Article in Chinese | WPRIM | ID: wpr-876953

ABSTRACT

OBJECTIVE: To analyze the influencing factors of high blood lead levels in lead-exposed workers of a storage battery factory. METHODS: By the typical sampling method,lead-exposed workers were chosen as study subjects for a three-year retrospective cohort study starting from September of 2011 and ending in September of 2014. The starting blood lead level was < 400. 0 μg / L and ending blood lead level was ≥400. 0 μg / L( abnormal level). The influencing factors of abnormal blood lead level were analyzed by the COX regression analysis method. RESULTS: There were 244 lead-exposed workers included in this study. The median( M) working years of baseline lead exposure was 6. 3( 0. 7-35. 9) years,the M of baseline blood lead level was 321. 5( 215. 7-398. 7) μg / L by September of 2011. During the 3 years,there were 78 workers found to have abnormal blood lead levels,with an abnormality rate of 32. 0%. The multivariable COX regression analysis indicated that the workers with following situations had relative higher incidences of abnormal blood lead level:working without masks,baseline blood lead level over 300. 0 μg / L,the air concentration of lead in workplace beyond the standard and the workers exposed to lead for over 5. 0 years,their relative risk ratios were 6. 89,4. 00,9. 02 and 2. 93 times of those workers with the opposite situations,respectively( P < 0. 01). CONCLUSION: Measures should be taken to prevent and control the occupational chronic lead poisoning especially in those lead-exposed workers who don't wear masks during work,whose baseline blood lead level was over 300. 0 μg / L,whose air concentrations of lead in workplace were beyond the standard and whose lead exposure year was over 5. 0 years.

18.
Chinese Medical Journal ; (24): 2816-2823, 2016.
Article in English | WPRIM | ID: wpr-230874

ABSTRACT

<p><b>BACKGROUND</b>Nowadays, social media tools such as short message service, Twitter, video, and web-based systems are more and more used in clinical follow-up, making clinical follow-up much more time- and cost-effective than ever before. However, as the most popular social media in China, little is known about the utility of smartphone WeChat application in follow-up. In this study, we aimed to investigate the feasibility and superiority of WeChat application in clinical follow-up.</p><p><b>METHODS</b>A total of 108 patients diagnosed with head and neck tumor were randomized to WeChat follow-up (WFU) group or telephone follow-up (TFU) group for 6-month follow-up. The follow-ups were delivered by WeChat or telephone at 2 weeks, 1, 2, 3, and 6 months to the patients after being discharged. The study measurements were time consumption for follow-up delivery, total economic cost, lost-to-follow-up rate, and overall satisfaction for the follow-up method.</p><p><b>RESULTS</b>Time consumption in WFU group for each patient (23.36 ± 6.16 min) was significantly shorter than that in TFU group (42.89 ± 7.15 min) (P < 0.001); total economic cost in WFU group (RMB 90 Yuan) was much lower than that in TFU group (RMB 196 Yuan). Lost-to-follow-up rate in the WFU group was 7.02% (4/57) compared with TFU group, 9.80% (5/51), while no significance was observed (95% confidence interval [CI]: 0.176-2.740; P = 0.732). The overall satisfaction rate in WFU group was 94.34% (50/53) compared with 80.43% (37/46) in TFU group (95% CI: 0.057-0.067; P = 0.034).</p><p><b>CONCLUSIONS</b>The smartphone WeChat application was found to be a viable option for follow-up in discharged patients with head and neck tumors. WFU was time-effective, cost-effective, and convenient in communication. This doctor-led follow-up model has the potential to establish a good physician-patient relationship by enhancing dynamic communications and providing individual health instructions.</p><p><b>TRIAL REGISTRATION</b>Chinese Clinical Trial Registry, ChiCTR-IOR-15007498; http://www.chictr.org.cn/ showproj.aspx?proj=12613.</p>


Subject(s)
Adult , Aftercare , Economics , Methods , Aged , Female , Head and Neck Neoplasms , Humans , Male , Middle Aged , Patient Discharge , Economics , Smartphone , Social Media , Telephone , Young Adult
19.
Chinese Medical Journal ; (24): 2439-2443, 2015.
Article in English | WPRIM | ID: wpr-315317

ABSTRACT

<p><b>BACKGROUND</b>Delayed puberty can result either from constitutional delay of growth and puberty (CDP) or idiopathic hypogonadotropic hypogonadism (IHH). Gonadotropin-releasing hormone (GnRH) stimulation test has been generally accepted as a current method for diagnosing delayed puberty. The objective of this research was to assess the cut-off values and the efficacy of GnRH stimulation test in the diagnosis of delayed puberty in both males and females.</p><p><b>METHODS</b>A study of 91 IHH, 27 CDP patients, 6 prepubertal children, and 20 pubertal adults was undertaken. Blood samples were obtained at 0, 30, 60, and 120 min after GnRH administration and the levels of luteinizing hormone (LH) and follicle-stimulating hormone (FSH) were measured. For each parameter, the sensitivities and specificities were estimated, and the receiver operating characteristic (ROC) curves were constructed.</p><p><b>RESULTS</b>The ROC curves indicated that a serum basal LH <0.6 IU/L or peak LH <9.74 IU/L resulted in moderate sensitivity (73.8% or 80.0%) and specificity (90.9% or 86.4%) in the diagnosis of HH in males. Serum basal LH <0.85 IU/L or basal FSH <2.43 IU/L resulted in moderate sensitivity (80.0% or 100.0%) and specificity (75.0% or 50.0%) in the diagnosis of HH in females.</p><p><b>CONCLUSIONS</b>Our data suggest that isolated use of the gonadorelin stimulation test is almost sufficient to discriminate between HH and CDP in males, but unnecessary in females. The most useful predictor is serum basal or peak LH to differentiate these two disorders in males, but serum basal LH or FSH in females.</p>


Subject(s)
Adolescent , Female , Follicle Stimulating Hormone , Blood , Gonadotropin-Releasing Hormone , Pharmacology , Gonadotropins , Humans , Hypogonadism , Blood , Diagnosis , Hypothalamus , Luteinizing Hormone , Blood , Male , Pituitary Gland , Puberty, Delayed , Blood , Diagnosis , Sensitivity and Specificity
20.
Chinese Journal of Cancer ; (12): 350-357, 2015.
Article in English | WPRIM | ID: wpr-349600

ABSTRACT

<p><b>INTRODUCTION</b>In the past several decades, declining incidences of nasopharyngeal carcinoma (NPC) have been observed in Chinese populations in Hong Kong, Taiwan, Los Angeles, and Singapore. A previous study indicated that the incidence of NPC in Sihui County, South China remained stable until 2002, but whether age, diagnosis period, and birth cohort affect the incidence of NPC remains unknown.</p><p><b>METHODS</b>Age-standardized rates (ASRs) of NPC incidence based on the world standard population were examined in both males and females in Sihui County from 1987 to 2011. Joinpoint regression analysis was conducted to quantify the changes in incidence trends. A Poisson regression age-period-cohort model was used to assess the effects of age, diagnosis period, and birth cohort on the risk of NPC.</p><p><b>RESULTS</b>The ASRs of NPC incidence during the study period were 30.29/100,000 for males and 13.09/100,000 for females. The incidence of NPC remained stable at a non-significant average annual percent change of 0.2% for males and -1.6% for females throughout the entire period. A significantly increased estimated annual percent change of 6.8% (95% confidence interval, 0.1%-14.0%) was observed from 2003 to 2009 for males. The relative risk of NPC increased with advancing age up to 50-59 and decreased at ages >60 years. The period effect curves on NPC were nearly flat for males and females. The birth cohort effect curve for males showed an increase from the 1922 cohort to the 1957 cohort and a decrease thereafter. In females, there was an undulating increase in the relative risk from the 1922 cohort to the 1972 cohort.</p><p><b>CONCLUSIONS</b>The incidence trends for NPC remained generally stable in Sihui from 1987 to 2011, with an increase from 2003 to 2009. The relative risks of NPC increased in younger females.</p>


Subject(s)
Age Factors , Animals , Asian Continental Ancestry Group , Carcinoma , China , Cohort Studies , Female , Hong Kong , Humans , Incidence , Male , Nasopharyngeal Neoplasms , Sex Factors , Singapore , Taiwan
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