Value of serum fibroblast growth factor 23 in diagnosis of hypophosphatemic rickets in children / 中国当代儿科杂志

OBJECTIVES@#To study the value of serum fibroblast growth factor 23 (FGF23) in the diagnosis of hypophosphatemic rickets in children.@*METHODS@#A total of 28 children who were diagnosed with hypophosphatemic rickets in Children's Hospital of Nanjing Medical University from January 2016 to June 2021 were included as the rickets group. Forty healthy children, matched for sex and age, who attended the Department of Child Healthcare of the hospital were included as the healthy control group. The serum level of FGF23 was compared between the two groups, and the correlations of the serum FGF23 level with clinical characteristics and laboratory test results were analyzed. The value of serum FGF23 in the diagnosis of hypophosphatemic rickets was assessed.@*RESULTS@#The rickets group had a significantly higher serum level of FGF23 than the healthy control group (P<0.05). In the rickets group, the serum FGF23 level was positively correlated with the serum alkaline phosphatase level (rs=0.38, P<0.05) and was negatively correlated with maximum renal tubular phosphorus uptake/glomerular filtration rate (rs=-0.64, P<0.05), while it was not correlated with age, height Z-score, sex, and parathyroid hormone (P>0.05). Serum FGF23 had a sensitivity of 0.821, a specificity of 0.925, an optimal cut-off value of 55.77 pg/mL, and an area under the curve of 0.874 in the diagnosis of hypophosphatemic rickets (P<0.05).@*CONCLUSIONS@#Serum FGF23 is of valuable in the diagnosis of hypophosphatemic rickets in children, which providing a theoretical basis for early diagnosis of this disease in clinical practice.

New mechanisms of chronic kidney disease-associated vascular calcification / 生理学报

Vascular calcification is the crucial factor of high cardiovascular disease morbidity and mortality in patients with chronic kidney disease (CKD), which causes a huge medical and economic burden. It is urgent to explore its pathogenesis and intervention methods. CKD-associated vascular calcification is an ectopic osteogenesis process actively regulated by multiple cells. Vascular smooth muscle cells (VSMCs) undergo osteogenic differentiation in a pro-calcification environment, and secrete matrix vesicles to form calcium and phosphorus crystal deposition sites, which are key events in the development of CKD-associated vascular calcification. This article reviews the new mechanism and technology of CKD-associated vascular calcification and discusses the role of the myokine Irisin in CKD-associated vascular calcification.

Consensus and controversy on research progress and clinical practice of vascular calcification / 生理学报

Vascular calcification is an active and complex pathological process regulated by several factors. Vascular calcification is closely related to the incidence and mortality of the cardiovascular disease, chronic kidney disease and other diseases, which affects multiple organs and systems, thus affecting people's health. Therefore, more and more attention is paid to vascular calcification. At present, the pathogenesis and clinical practice of vascular calcification have been continuously improved, which mainly includes calcium and phosphorus imbalance theory, vascular smooth muscle cell transdifferentiation theory, bone homeostasis imbalance theory, epigenetic regulation theory, inflammation theory, extracellular matrix theory, new cell fate theory and so on. However, there are still many unsolved problems. Since the occurrence and development of vascular calcification affect multiple organs and systems, this expert consensus gathered clinicians and basic research experts engaged in the study of vascular calcification in order to summarize the progress of various disciplines related to vascular calcification in recent years. The purpose of this consensus is to systematically summarize the latest research progress, treatment consensus and controversy of vascular calcification from the aspects of epidemiology, pathogenesis, prevention and treatment, so as to provide theoretical basis and clinical enlightenment for in-depth research in this field.

Functional characterization of SLC12A1 gene variants in 3 patients with Bartter syndrome type Ⅰ / 中华儿科杂志

Objective: To clarify the molecular basis of patients with Bartter syndrome type I and explore the therapeutic effect of trafficking-defective variations by chemical chaperone 4-Phenylbutyric acid(4-PBA). Methods: The clinical characteristics, laboratory findings and genetic data of 3 patients diagnosed with Bartter syndrome type I who were admitted to Department of Nephrology, Children's Hospital of Nanjing Medical University from 2017 to 2018 were retrospectively analyzed. Wild type and variant SLC12A1 gene constructs were transiently overexpressed in HEK293 cells. Western blotting was used to detect the expression levels of Na+-K+-2Cl-cotransporter(NKCC2) protein. Immunofluorescent staining was applied to investigate the subcellular localization of NKCC2 protein. In addition, the effect of the chemical chaperone 4-PBA on the expression and localization of the SLC12A1 gene variants was investigated. Unpaired t test was used for statistical analysis of 4-PBA treatment. Results: All the 3 patients (2 males and 1 female), aged 3.0, 4.0 and 1.2 years, respectively. All patients had antenatal onset with polyhydramnios and were born prematurely. After birth, all patients presented with hypochlorine alkalosis accompanied by hypokalemia and hyponatremia. Sequencing analysis revealed that the 3 patients were homozygotes or compound heterozygotes for variants in the SLC12A1 gene. In HEK293 cells, the surface expression of NKCC2 in 3 variants (p.L463S, p.L479V, p.507-510del) are all lower than in wild type (0.718±0.039, 0.287±0.081, 0.025±0.156 vs. 1.001±0.028, t=5.92, 8.35, 30.49, all P<0.01). Moreover, the total protein expression of p.L479V and p.507-510del group were all lower than that in wild type group (0.630±0.032, 0.043±0.003 vs. 1.000±0.111, t=3.21, 8.65, all P<0.05). 4-PBA treatment increased the mature protein expression level of the p.L463S and p. L479V group in 4-PBA treatment group are all higher than the untreated group (0.459±0.018 vs. 1.123±0.024, 0.053±0.012 vs. 1.256±0.037, t=2.75, 18.35, all P<0.05). Cytoplasmic retention of the L479V and 507-510del variants were observed by immunofluorescent staining. 4-PBA treatment could rescue a number of NKCC2 L479V variants to the membrane. Conclusions: The 3 SLC12A1 variants cause expression or subcellular localization defects of the protein. The findings that plasma membrane expression and activity can be rescued by 4PBA might help to develop novel therapeutic strategy for Bartter syndrome type Ⅰ.

Chemical Composition Analysis and Characterization of Reference Sample of Huangqi Guizhi Wuwutang Based on UPLC-Q-TOF-MS / 中国实验方剂学杂志

ObjectiveTo analyze the chemical composition of the reference sample of Huangqi Guizhi Wuwutang （lyophilized powder）， and to provide quality markers for the formulation of quality standards of this formula. MethodUltra performance liquid chromatography-quadrupole time-of-flight tandem mass spectrometry （UPLC-Q-TOF-MS） was performed on a Waters ACQUITY UPLC™ HSS T3 column （2.1 mm×100 mm， 1.8 μm）， the mobile phase was methanol （A） -0.1% formic acid aqueous solution （B） for gradient elution （0-8 min， 1%-20%A； 8-10 min， 20%-30%A； 10-12 min， 30%-35%A； 12-14 min， 35%-40%A， 14-23 min， 40%-55%A， 23-27 min， 55%-99%A； 27-28 min， 99%A； 28-28.5 min， 99%-1%A； 28.5-30 min， 1%A）， the column temperature was 40 ℃， the injection volume was 2 μL， and the flow rate was 0.3 mL·min-1. The mass spectrometry data of the reference sample of Huangqi Guizhi Wuwutang （lyophilized powder） were collected under positive and negative ion modes. The conditions of mass spectrometry were electrospray ionization （ESI）， scanning range of m/z 50-1 200， and impact energy of 10-30 eV. UNIFI 1.8 and Progenesis QI 2.0 software were used to analyze and characterize the chemical constituents in reference sample of Huangqi Guizhi Wuwutang （lyophilized powder） combined with reference comparison and literature review. ResultA total of 123 chemical constituents were identified， including 33 flavonoids， 26 glycosides， 18 organic acids， 11 terpenoids， 7 phenylpropanoids， 4 gingerol， 3 alkaloids， 3 amino acids， 2 amides and 16 other compounds. ConclusionThe established method can quickly and accurately characterize the chemical components in the reference sample of Huangqi Guizhi Wuwutang （lyophilized powder）， which can provide a basis for the selection of quality evaluation indicators of this formula， and provide a reference for its preparation research.

Study of Differential Serum Metabolites in Patients with Adenomatous Polyps of Colon and Yang-Deficiency Constitution Based on Ultra-Performance Liquid Chromatography-Mass Spectrometry / 中国结合医学杂志

OBJECTIVE@#To study the differences between the serum metabolites in patients with adenomatous polyps of the colon and yang-deficiency constitution and those without colon polyps and with balanced constitution, and look for biomarkers that can be used to distinguish between the two groups.@*METHODS@#General patient information was gathered, and Chinese medicine constitution were collected in 940 patients who underwent electronic colonoscopy. A total of 119 patients with adenomatous polyps of the colon and yang-deficiency constitution were included in the experimental group, and 150 patients without colon polyps and with balanced constitution were included in the control group. Metabolomics analysis was performed on the fasting venous blood obtained from each patient in both groups. Principal component analysis and orthogonal partial least squares discriminant analysis were performed on the detection results, potential biomarkers were screened, metabolic pathway changes were determined, and the metabolic processes involved were discussed.@*RESULTS@#A total of 59 differential biomarkers between the experimental group and the control group were identified. The differential metabolites were found mainly in the glycerophospholipid metabolism pathway, and the bile acid 3-oxo-4,6-choladienoic acid was the biomarker that distinguished the experimental group from the control group.@*CONCLUSION@#With the help of metabolomics analysis, the differential metabolites in patients with adenomatous polyps of the colon and yang-deficiency constitution and those in patients without colon polyps and with balanced constitution could be identified. The biomarker 3-oxo-4,6-choladienoic acid may have potential diagnostic value in patients with adenomatous polyp of the colon and yang-deficiency constitution. (Trial Registration No. NCT02986308).

Progress in the research of application of hot springs in health care and adjuvant treatment of diseases / 上海预防医学

Hot spring is a kind of precious natural water resource formed under specific geological conditions and obtained by natural gushing or artificial drilling, and is rich in minerals and trace elements peculiar to deep strata. Hot spring bathing is a physical therapy with a long history. An increasing number of studies have shown the positive effects of hot spring bathing in maintaining health and the auxiliary treatment and rehabilitation of chronic diseases. This paper reviews the distribution, classification and application history of hot springs, and further explores the research on the effect of hot springs on the improvement of sub-health status and the adjuvant treatment of chronic diseases such as skin diseases, cardiovascular diseases and joint diseases, so as to provide reference for further understanding of the physiotherapy value of hot spring bathing and boost its role in the development of big health industries.

Effect of hot spring bathing therapy on human serum immunoglobulins and complements / 上海预防医学

Objective To investigate the effect of hot spring baths on human immune function by analyzing the changes of immunoglobulins and complements in serum of residents after hot spring baths in order to provide a theoretical reference for the therapeutic effect of hot spring bathing. Methods After physical examination, 421 volunteers from five hot spring areas with three types of hot springs(temperature type hot springs, metasilicic acid type hot springs, and warm mineral spring type hot springs)in Guizhou Province were selected as the subjects. Under the guidance of professionals, the volunteers took a hot spring bath with the whole body immersed for four weeks, once a day, 5 times a week and 40-50 minutes each time. Finally, 311 volunteers completed the standard bath required by this study. The transmission immunoturbidimetric method was used to determine the content of immunoglobulins reflecting mucosal anti-infective immunity(IgA), anti-pathogenic microorganisms(IgG), recent infections(IgM)and the level of important immune effect factors(C3, C4)in the serum. Paired T test was used to compare the changes of serum immunoglobulin and complement before and after the hot spring bath therapy. Results Before the hot spring baths, the content of serum IgG, IgA, IgM, and complements C3 and C4 was(12.169±2.358)g/L, (2.285±0.891)g/L, (1.430±0.660)g/L, (1.224±0.186)g/L, and(0.257±0.073)g/L, respectively. After the hot spring baths, the content of serum IgG, IgA, IgM, and complements C3 and C4 was(12.769±2.984)g/L, (2.397±0.909)g/L, (1.497±0.715)g/L, (1.242±0.169)g/L, and(0.266±0.074)g/L, respectively.Comparison of results of different types of hot springs showed that warm mineral type of hot springs and metasilicic acid type of hot springs could significantly increase the serum levels of main immunoglobulins IgG and IgA(P < 0.05), while water temperature type of hot springs could increase the serum IgA content of the population(P < 0.05), but the effect on IgG was not significant(P > 0.05). Compared with before the bath intervention, the level of complement C4 in the serum increased in the population after the intervention of metasilicic acid type of hot springs and water temperature type of hot springs(P < 0.05). Conclusion Hot spring bathing can enhance the body's humoral immune function. Given that IgG is the most important anti-pathogenic microorganism antibody in body fluids, the result suggests that metasilicic acid hot spring and warm mineral hot spring are better than pure water temperature hot spring in terms of improving the body's humoral immune function.

Effects of intervention of hot spring bathing on antioxidation functions in population / 上海预防医学

Objective To understand the influence of hot spring bathing intervention on population's antioxidation functions. Methods Three typical types of hot spring(metasilicic acid type, warm mineral type and temperature type)in Guizhou Province were selected for investigation. According to the inclusion-exclusion criteria, questionnaires and physical examinations results, 421 individuals were selected as observation subjects for hot spring bathing intervention, of which 311 subjects completed 40 to 50 minutes of intervention once a day, 5 days a week, and for 4 weeks. Two physical examinations before and after the intervention were conducted for the 311 subjects. The fasting venous blood samples on the mornings of two physical examinations were collected and the serum was separated. Levels of serum oxidative stress-related parameters including total superoxide dismutase(T-SOD), copper zinc superoxide dismutase(Cu-Zn SOD), glutathione sulfur transferases(GSTs)glutathione peroxidase(GSH-px), sulfhydryl(-SH)and malondialdehyde(MDA)were measured by enzymatical methods. Results The overall comparison showed that compared with before the bathing intervention, the levels of antioxidant enzymes including T-SOD, Cu-Zn SOD, GSTs and GSH-px significantly increased in serum after the intervention(all P < 0.05). There was an increasing trend of serum -SH level after the intervention, but with no statistical differences were seen(P > 0.05). MDA, a product of lipid peroxidation, significantly decreased in serum after the intervention(P < 0.05). The results of classified comparison showed that the effects of different hot spring types on antioxidant enzymes were different. Metasilicic acid type significantly increased the activities of GSTs and GSH-px in serum(all P < 0.05), warm mineral type significantly increased the activities of T-SOD and Cu-Zn SOD in serum(all P < 0.05), and temperature type significantly increased the activities of T-SOD, Cu-Zn SOD and GSTs in serum(all P < 0.05). There were increasing trends of serum -SH levels after bathing intervention of all three hot spring types, but no statistical differences were seen(all P > 0.05). The serum MDA levels decreased significantly after bathing intervention of all three types of hot springs(all P < 0.05). Conclusion Overall, bathing intervention of hot springs can improve the activities of antioxidant enzymes and reduce lipid peroxidation products in population. The results of oxidative stress parameters are slightly different in different types of hot springs. The subjects mainly show the elevation of glutathione related enzyme(GSTs and GSH-px)activities after intervention of metasilicic acid type, the elevation of superoxide dismutase(SOD)activities after intervention of warm mineral type and temperature type, and the decline of lipid peroxidation levels after intervention of all three types. It suggests that hot spring bathing may have certain effects on improving the body's antioxidation functions.

Regulating effect of hot spring bathing therapy on the balance of element metabolism in the human body / 上海预防医学

Objective To analyze the changes of major and trace elements in urine before and after hot spring bathing, and to explore the effect of hot spring bathing on element metabolism, so as to provide theoretical reference for the physiotherapeutic efficacy of hot spring bathing. Methods The content of Ca, K, Mg, Na, P, S, Sr, Zn, B, Mn, Ni, V, Se, Co, Cr, Cu, Fe, Mo, As, Cd, Hg, Li, Pb and Al in warm mineral springs, metasilicic springs and mineral springs in Guizhou Province was determined by ICP-MS. On the basis of physical examination, 421 people in hot spring areas of Guizhou Province were selected as the subjects. Under the guidance of professionals, the volunteers took a hot spring bath with the whole body immersed for four weeks, once a day, five times a week, for 40-50 minutes each time. Finally, 311 volunteers completed the standard bath required by this study. The content of major elements(Ca, K, Mg, Na, P, and S), essential trace elements(Co, Cr, Cu, Fe, Mo, Se, Sr, and Zn), possibly essential trace elements(B, Mn, Ni, and V)and potentially toxic elements(Al, As, Cd, Hg, Li, and Pb)in urine was analyzed by ICP-MS. Wilcoxon test was used to compare the differences of various elements in urine before and after bathing. Results The water of the warm mineral spring pool mainly contained Mo, Sr, Zn, B, Al, and Pb. The metasilicic acid water mainly contained Cu, V, and As. The water of the mineral spring bubble pool mainly contained Ca, K, Mg, S, Cr, Fe, Se, Mn, Ni, and Li. Compared with before intervention, the content of major elements(Ca, K, Mg, S), essential trace elements(Co, Cr, Cu, Fe, Mo, Se, Zn)and possibly essential trace elements(B, Mn, Ni, V)significantly increased, and the content of potential toxic elements(Al, Li, Pb)significantly decreased after intervention(all P < 0.05). The results showed that the content of P, S, Co, Cr, Mo, Se, Zn, Mn and Ni increased significantly and the content of Hg decreased significantly after metasilicic acid hot spring bathing compared with that before bathing(all P < 0.05). After warm mineral hot spring bathing, the content of Ca, Mg, S and Zn increased significantly, while the content of Al and Pb decreased significantly(all P < 0.05). The content of Mg, S, Co, Cr, Se and Ni increased significantly and the content of Al decreased significantly(all P < 0.05). Conclusion There are many kinds of mineral elements in hot springs in Guizhou Province. After hot spring bathing, the essential trace elements and possible essential trace elements in human body increased, and the potential toxic elements decreased, but there was no gender difference.

Effect of hot spring bathing on rheumatoid related indicators and joint pain / 上海预防医学

Objective To observe the intervention effect of typical hot spring bathing in Guizhou province on joint pain, serum anti-keratin antibody(AKA), anti-perinuclear factor antibody(APF)and anti-cyclic citrullinated peptide antibody(CCP). Methods A total of 160 people with joint pain symptoms from five typical hot spring areas in Guizhou province were selected as the subjects. They were treated with hot spring bathing intervention for 4 weeks, once a day, 5 times a week, 40 to 50 minutes each time. According to the evaluation index of physiotherapy natural mineral water in the Code for Geological Exploration and Evaluation of Natural Warm Mineral Water Resources(GB/T 13727-2016)and geological types, the five typical hot springs were divided into three different types, namely water temperature type hot springs(water temperature > 36 ℃), metasilicate type hot springs(metasilicate > 50 mg/L)and warm mineral spring type hot springs(total dissolved solids > 1 000 mg/L). WHO pain grading standard was used to score the degree of joint pain before and after hot spring bathing intervention. Serum APF, AKA and CCP antibodies were detected by ELISA kit before and after hot spring bathing. Results The joint pain score of the subjects was 2.60±0.60, and the joint pain score of the total population decreased after intervention(0.61±0.57, P < 0.05). Before intervention, the joint pain scores of water temperature type, metasilicic acid type and warm mineral spring type were 2.78±0.96, 1.98±1.15 and 3.31±0.57, respectively. After intervention, the scores of joint pain of the three kinds of hot spring bathing patients all decreased(P < 0.05), and were 0.50±0.65, 0.48±0.74 and 0.85±0.90, respectively. Before intervention, AKA(ng/L)and CCP(μg/mL)antibody levels of the observed subjects were 34.89±16.06 and 107.58±10.40, respectively, which significantly decreased after intervention(both P < 0.05), namely 26.06±10.68 and 102.93±6.01, respectively. AKA(ng/L)was 35.04±20.01 before intervention, but decreased significantly after intervention(26.61±7.54, P < 0.05). AKA(ng/L)and CCP(μg/mL)were 31.09±17.26 and 106.51±10.13 before intervention, respectively. After intervention, the above two antibody indexes significantly decreased(all P < 0.05)to 24.53±13.98 and 98.57±5.68, respectively. Before intervention, the AKA(ng/L), APF(ng/mL)and CCP(μg/mL)antibody levels were 38.40±8.66, 349.46±118.43 and 104.96±9.66, respectively. After intervention, the above three antibody indexes significantly decreased(all P < 0.05). The values were 34.00±7.55, 269.38±127.55 and 101.65±3.04, respectively. Conclusion The typical hot spring bathing intervention in Guizhou province can relieve the symptoms of joint pain, and the three types of hot springs can reduce the levels of AKA, APF and CCP antibodies to different degrees, and the warm mineral spring type of hot spring is better than the other types of hot spring.

Analysis of the effect of hot spring bathing on serum melatonin levels and its association with sleep and anxiety / 上海预防医学

Objective To explore the improvement effect of typical hot spring bathing on sleep and anxiety and its correlation with serum melatonin level in Guizhou province. Methods Five typical characteristic hot springs in Guizhou were selected according to the geological type of hot spring water. A total of 226 residents in these areas were selected for the survey and the self-rating scale of sleep(SRSS)and the self-rating anxiety scale(SAS)were used to measure their scores before and after hot spring bathing, and the correlation between the changes of SRSS and SAS scores and the serum melatonin levels were analyzed. Results The SRSS and SAS scores of the respondents after hot spring bathing were lower than before, and the difference was statistically significant(P < 0.05). Serum melatonin levels after hot spring bathing were significantly higher than before(P < 0.05), and there was a negative correlation between the changes of SRSS and SAS scores and serum melatonin levels(P < 0.05). Conclusion Typical hot springs in Guizhou Province can significantly improve the sleep quality and anxiety state, which are related to the elevation of serum melatonin level.

Study on the effect of hot spring bath therapy on sleep quality based on health bracelets / 上海预防医学

Objective To study the relieving effects of hot spring bath therapy on sleep quality for people with sleep disorders based on data from health bracelets. Methods After health examinations, 311 people with sleep disorders who participated in the bath therapy in five typical hot spring areas in Guizhou Province were selected as the subjects. A four-week hot spring bath therapy was implemented, and the bathing method and the classification of hot springs were the same as the"Overview of study of the physiotherapy efficacy of typical hot springs in Guizhou Province". The daily sleep time at night(minutes), deep sleep ratio(%), light sleep ratio(%)and rapid eye movement ratio(%)for all subjects were collected using the Huawei Honor Band 3 health bracelets. Repeated measures analysis of variance was used to compare the differences in sleep quality indicators of each group at night each week. The effect of three different hot spring bath therapies on the improvement of night sleep quality was evaluated by factor analysis. Results Hot spring bath therapy can increase night sleep time and deep sleep ratio, while reducing light sleep ratio. Compared with the first week, the night sleep time in the following three weeks significantly increased(P < 0.05), especially in the fourth week; the deep sleep ratio during the third and fourth weeks was significantly higher than during the first and second weeks(P < 0.05), but the light sleep ratio was lower than during the first and second weeks(P < 0.05). The rapid eye movement ratio did not change significantly throughout the 4 weeks(P > 0.05). Further classified according to the physiotherapy components of geological hot springs, the results showed that the water temperature type of hot springs can increase night sleep time and reduce light sleep ratio; the warm mineral type of hot springs has a certain regulatory effect on increasing night sleep time, deep sleep ratio and reducing light sleep ratio; the metasilicic acid type of hot springs can improve night sleep quality by increasing night sleep time and deep sleep ratio, while reducing light sleep ratio and rapid eye movement ratio. The factor analysis results suggest that the metasilicic acid type of hot springs is better than the water temperature type and warm mineral type of hot springs in improving night sleep quality. Conclusion Hot spring bath therapy can improve the night sleep quality for people with sleep disorders to varying degrees, and the metasilicic acid type of hot springs is relatively better than other types.

Association between hot spring bathing behavior and hypertension and the mediating effect of sleep quality problems in typical hot spring areas of Guizhou Province / 上海预防医学

Objective To investigate the association between hot spring bathing behavior and hypertension and understand the mediation effect of sleep quality problems on the association. Methods A cross-sectional survey was conducted among adults aged 30 to 65 living and working around five hot springs in Guizhou Province, employing a self-designed questionnaire on the health status and hot spring bathing, and 3 708 qualified questionnaires were collected. Participants were divided into three groups according to their frequency of hot spring bathing: never, occasionally, and frequently. Stratified via sex and sleep quality, the binary logistic regression model was used to analyze the association between different hot spring bathing frequencies and self-reported hypertension. Results Significant difference was detected in the self-reported hypertension between groups who never bathe(13.7%), who occasional bathe(9.4%)and who frequently bathe(8.5%)among female participants(χ2=10.460, P=0.005). However, no significant difference was found among different bathing groups in males. Furthermore, multivariate analysis showed that compared with no bathing, occasional(OR=0.692)and frequent (OR=0.594)hot spring bathing were associated with lower hypertension prevalence among female population, and female groups of occasional and frequent bathing with sleep quality problems had smaller OR(OR=0.571 and 0.406, respectively). After sleep quality problems were included, hot spring bathing was still associated with lower hypertension risk, and the OR values of occasional bathing and frequent bathing groups were 0.723 and 0.611, respectively. The sleep quality problems of female population played a partial mediating role in the association between hot spring bathing and hypertension, and the relative mediating effects of occasional bathing and frequent bathing with hypertension were both statistically significant(Zm=-2.022 and -1.995, P < 0.05), which accounted for 34.34% and 30.15% of the total effects, respectively. Conclusion Regular hot spring bathing may play an auxiliary role in the prevention of hypertension, and it may provide a stronger protection for women, and especially those with sleep quality problems. Sleep quality problems may explain part of the association between hot spring bathing and hypertension in female population.

Ameliorative effect of hot spring bathing on the elevation of blood lipid in population / 上海预防医学

Objective To explore the effect of typical hot spring bathing of Guizhou Province on dyslipidemia, which could provide scientific basis for clarifying the physiotherapy effect of hot springs. Methods The typical hot spring sites of three main types(hydrothermal hot spring, warm mineral hot spring and metasilicate hot spring)in Guizhou Province were selected as investigation sites. 189 residents with hyperlipidemia near the investigation sites were selected as subjects and were treated with hot spring baths for 4 weeks, once a day, 5 times a week and 40-50 minutes each time. The age and gender distribution of the subjects were obtained by a questionnaire. The levels of TC, TG, LDL-C and HDL-C in serum were measured by automatic biochemical analyzer at baseline and at the end of hot spring baths. The differences of the three kinds of hot spring baths on improvement rate of dyslipidemia, the changes of abnormal blood lipid indexes and their improvement rates were compared. Results After baths of hydrothermal hot springs, warm mineral hot springs and metasilicate hot springs, the improvement rates of abnormally elevated lipids were 15.6%, 40.4% and 47.9%, respectively. The improvement rates of abnormally elevated lipids after baths of warm mineral hot springs and metasilicate hot springs were significantly higher than that after hydrothermal spring baths(all P < 0.05). Compared with before hot spring bathing, the levels of TC, TG, LDL-C and non-HDL-C in serum significantly decreased in all three kinds of hot springs. Moreover, the degree of decrease of TG in serum and the improvement rate of abnormal TG after baths of warm mineral spring and metasilicate hot spring were significantly higher than that after hydrothermal spring baths. The degree of decrease of LDL-C in serum and the improvement rate of abnormal LDL-C after baths of metasilicate hot spring were significantly higher than that after baths of hydrothermal spring and warm mineral spring(all P < 0.05). Conclusion The three types of typical hot spring baths in Guizhou Province can mitigate the elevation of blood lipid. Compared with hydrothermal spring, warm mineral spring and metasilicate hot spring may have better improvement effect on blood lipid elevation due to their more significant improvement effect on abnormal elevation of TG and LDL-C in serum.

Intervention effects of hot spring bathing on blood pressure, resting heart rate, cardiovascular function indicators and physical signs in population with high-normal blood pressure / 上海预防医学

Objective To investigate the effects of hot spring baths on blood pressure, resting heart rate, cardiovascular function related indicators and physical signs in population with high-normal blood pressure. Methods Residents of typical hot spring areas in Guizhou Province were included as the subjects. According to the epidemiological survey of the research group and the physical examination results before the intervention, combined with the inclusion and exclusion criteria, a total of 217 people with high normal blood pressure were selected as the observation subjects. The intervention of hot spring baths was carried out for four weeks, once time per day, 5 times per week, for 40-50 minutes each time. After the intervention, the blood pressure, resting heart rate and serum levels of creatine kinase(CK), lactate dehydrogenase(LDH), and α-hydroxybutyrate dehydrogenase(α-HBDH)were detected, and the improvement of cardiovascular related signs(palpitation, dizziness/headache, cough/sputum and night sweats)were clinically examined. SPSS 23.0 software was used for statistical analysis. Results Paired t-test results showed that the systolic blood pressure, diastolic blood pressure and resting heart rate of 217 high normal blood pressure subjects were significantly lower after hot spring baths(P < 0.01). Further analysis revealed that the number of people with high normal blood pressure dropped from 217 to 128 after the hot spring baths. Before the intervention, 95 of the 217 people with high-normal blood pressure had resting heart rates between 80 and 90 beats/min, and 35 of them above 90 beats/min. After the intervention, the resting heart rates of those above people decreased to 68 and 14, respectively. Serum levels of cardiovascular related indicators showed that CK, LDH, and α-HBDH levels in people with high-normal blood pressure decreased to some extent after the intervention, and CK level was significantly lower than that before the intervention(P < 0.05). The results of clinical examination showed that hot spring baths had a significant improvement effect on palpitation, dizziness/headache, cough/expectoration, and night sweats in people with high-normal blood pressure. Conclusion The typical hot spring baths in Guizhou Province can reduce the blood pressure and resting heart rate in population with high-normal blood pressure, and improve the cardiovascular function related indicators and physical signs to a certain extent.

Overview of study of the physiotherapy efficacy of typical hot springs in Guizhou Province / 上海预防医学

To implement the Guizhou Provincial Party Committee and the Provincial Government's strategic goal of building a"Chinese Hot Spring Province"in an all-round way, promote the development of Guizhou's"big health, big tourism, big poverty alleviation"and other industries, and enhance the development and utilization of Guizhou hot springs and their health and wellness value. With the support of the provincial Geological Prospecting Fund project Guizhou Province Physiotherapy Hot Springs(Geothermal Water)Survey and Evaluation, Guizhou Medical University was responsible for completing the topic"Study on the Physiotherapy Efficacy of Typical Hot Springs in Guizhou Province". Here, the background, study and design plan, quality control, and features and limitations of this project are briefly introduced.

Carrying out research on the efficacy of hot spring physiotherapy to promote the development of great health industry in Guizhou / 上海预防医学

Hot springs are valuable geothermal and water resources in Guizhou. The research on the efficacy and mechanism of hot spring physiotherapy is greatly conducive to promoting the sound development and efficient utilization of hot spring resources. This paper expounds the basis and current situation of the development of hot spring industry in Guizhou, reviews the epidemiological research carried out in Guizhou that analyzed the long-term hot spring bathing habits of residents in areas with hot springs and their relationship with chronic diseases, as well as the research of the impact of hot spring bathing intervention on human health indicators, so as to provide a scientific basis for the efficacy of hot spring physiotherapy. The research results provide scientific reference for promoting the scientific and sound development of hot spring health care industry, and changing the public's understanding of hot springs from entertainment and leisure to health care, promoting the health industry in Guizhou.

Analysis on comparison of inter-laboratory results of chemical volatile organic compounds / 中国职业医学

OBJECTIVE: To analyze the comparison results of volatile organic components in chemicals tested by occupational health laboratories.METHODS: A total of 37 reference laboratories that participated in the 2019 National Occupational Health Inspection and Testing Institution Laboratory Comparison Chemical Qualitative Testing Comparison organized by Guangdong Occupational Health Testing Center were selected as the research subjects. Headspace gas chromatography-mass spectrometry was used for the determination of volatile organic components in chemicals. The comparison results of reference laboratories were collected and implemented with qualitative and quantitative evaluation. RESULTS: The qualified rates of the qualitative results of the required hazard factors and other hazard factors in the reference laboratories were higher than those of the quantitative results of similar factors with statistical significance(83.78% vs 67.57%, 89.19% vs 56.76%, all P<0.05). There was no significant difference in the qualified rate of qualitative and quantitative results and comprehensive judgment results among each reference laboratory with other hazard factors(83.78% vs 89.19%, 67.57% vs 56.76%, 83.78% vs 89.19%, all P>0.05). The qualified rate of 37 reference laboratories was 89.19%(33/37). It showed no significant difference in the qualified rate of qualitative, quantitative and comprehensive judgment results among the reference laboratories of disease prevention and control system and non-disease prevention and control system(93.75% vs 85.72%, 85.00% vs 61.91%, 93.75% vs 85.52%,all P>0.05). CONCLUSION: There are great differences in the detection ability of volatile organic components on chemicals of each reference laboratory. The ability of qualitative detection is superior to the quantitative detection.

Inhibitory Study of Huayu Jiedu Prescription Medicated Serum on Invasion and Migration of Human Lung Cancer Cell Line H1299 by JAK2/STAT3 Pathway / 中国实验方剂学杂志

Objective:To investigate the effect of Huayu Jiedu prescription medicated serum（HJRMS）on the proliferation， invasion and migration of human lung cancer cells （H1299 cells） and its mechanism. Method:Cell counting kit-8 （CCK-8） method was used to detect the inhibitory effect of HJRMS on the proliferation of lung cancer cells， the effect of HJRMS on the invasion and migration of H1299 cells were determined by Transwell assay and wound healing assay. The protein expressions of Janus kinase 2 （JAK2）， signal transduction and activation transcription factor 3 （STAT3）， phosphorylated JAK2（p-JAK2） and phosphorylated STAT3 （p-STAT3） were detected by Western blot， the mRNA expression levels of JAK2 and STAT3 were detected by Real-time quantitative polymerase chain reaction（Real-time PCR）. Result:① Compared with control group， the proliferation of H1299 cells was significantly inhibited after treatment with 1%~16%HJRMS serum for 24， 48 h， respectively（<italic>P</italic><0.01）， and showed a certain concentration dependence. ② After treatment with HJRMS for 24 h， the scratch healing ability of cells in the 4%，8%HJRMS serum groups was inhibited（<italic>P</italic><0.05，<italic>P</italic><0.01）. ③ Compared with control group， the membrane permeability of H1299 cells in invasion and migration experiments in 2%，4%，8%HJRMS serum groups was decreased significantly（<italic>P</italic><0.05，<italic>P</italic><0.01）. ④ Western blot showed that compared with control group， 4%，8%HJRMS serum groups inhibited the expression of JAK2/STAT3 signaling pathway related proteins （JAK2， p-JAK2， STAT3， and p-STAT3） in lung cancer H1299 cells（<italic>P</italic><0.05， <italic>P</italic><0.01）. ⑤ Compared with control group， the mRNA expression levels of JAK2 and STAT3 in lung cancer H1299 cells treated with 8%HJRMS for 24 h decreased significantly （<italic>P</italic><0.05）. Conclusion:The HJRMS can inhibit the proliferation， invasion and migration of lung cancer H1299 cells， and its mechanism may be related to the inhibition of JAK2/STAT3 signaling pathway.