Wearable sensing, big data technology for cardiovascular healthcare: current status and future prospective / 中华医学杂志(英文版)

Wearable technology, which can continuously and remotely monitor physiological and behavioral parameters by incorporated into clothing or worn as an accessory, introduces a new era for ubiquitous health care. With big data technology, wearable data can be analyzed to help long-term cardiovascular care. This review summarizes the recent developments of wearable technology related to cardiovascular care, highlighting the most common wearable devices and their accuracy. We also examined the application of these devices in cardiovascular healthcare, such as the early detection of arrhythmias, measuring blood pressure, and detecting prevalent diabetes. We provide an overview of the challenges that hinder the widespread application of wearable devices, such as inadequate device accuracy, data redundancy, concerns associated with data security, and lack of meaningful criteria, and offer potential solutions. Finally, the future research direction for cardiovascular care using wearable devices is discussed.

Psychological influence of mini-invasive Carisolv III gel for caries removal in primary teeth / 医学研究生学报

Objective　Mini-invasive Carisolv is an aid to treat dental caries for patients with dental phobia. The article was to investigate the level of pain in caries removal using mini-invasive Carisolv III gel and mechanical methods with four psychological indicators.　Methods　We collected 120 primary molar tooth caries of 60 children treated in our hospital. Two primary molar tooth caries of each child were respectively treated with Carisolv III gel (Group A) and mechanical method (Group B) for caries removal. Psychological indicators including the visual analog scale (VAS), the Frank1 behavior rating scale (Frank1), the Kuttner law (Kuttner), and the Houpt behavior rating scale (Houpt) were used to assess the level of pain, degree of cooperation, pain tolerance and comfort. The clinical efficiency after six months and treatment time were compared between the two groups.　Results　There was no statistically significant difference before treatment between the two groups using the four psychological indicators (P>0.05) , while significant differences were found during and after the treatment between the two groups (P0.05). In the mechanical group, there were statistically significant differences before and during treatment or before and after treatment using the four psychological indicators (P<0.05). The treatment time in Carisolv III gel group was longer than in mechanical group (P=0.001). There was no statistical difference between the two groups in filling examination after six months (P=0.082).　Conclusion　Carisolv III gel for caries removal can effectively avoid pain, improve comfort and decrease fear in children, which can be promoted in clinical application.

Effect of tranexamic acid combined flexion position of hip and knee on perioperative bleeding following unilateral total knee arthroplasty / 中国骨伤

OBJECTIVE@#To explore clinical efficacy and safety of application of tranexamic acid for two times combined with postoperative hip and knee on flexion position for reducing blood loss during total knee arthroplasty.@*METHODS@#From January 2015 to January 2018, 90 patients with knee osteoarthritis underwent unilateral total knee arthroplasty, including 33 males and 57 females, aged from 61 to 85 years old with an average of(72.3±6.9) years old. The patients were randomly divided into three groups according to random number table, 30 patients in each group. In group A, there were 11 males and 9 females, aged from 61 to 84 years old with an average of (71.60±6.04) years old, body mass index was (26.04±1.95) kg/m², hemoglobin was(128.57±5.98) g/L, treated by 7.5 mg/kg tranexamic acid was injected intravenously before upper tourniquet, and 7.5 mg/kg tranexamic acid after closure of incision and before loosening tourniquet, meanwhile combined with flexion position of hip for 30° to 45° and flexion position of knee for 60° for 70°. In group B, there were 10 males and 20 females aged from 61 to 85 years old with an average of (72.04±7.47) years, body mass index was (25.92±1.70) kg/m², hemoglobin was (127.58±4.37) g/L, treated by 15 mg/kg tranexamic acid injected intravenously before loosening tourniquet. In group C, there were 12 males and 18 females aged from 62 to 85 years old with an average of (73.23±7.36) years, body mass index was (26.07±1.49) kg/m², hemoglobin was (128.31±5.61) g/L, treated with the same amount of normal saline before loosening tourniquet. Intraoperative bleeding volume, postoperative drainage volume, recessive blood loss, total blood loss volume, blood transfusion cases, activated partial thromboplastin time(APTT), prothrombin time(PT), prothrombin international standardized ratio (PT-INR) and indexes of D-dimer(D-D) were compared among three groups, as well as postoperative deep venous thrombosis and pulmonary embolism were observed among three groups.@*RESULTS@#No incision infection occurred in all 90 patients, and all patients were followed up from 4 to 8 months with an average of 6 months without pulmonary embolism occurred. There was no statistical difference in itraoperative bleeding volume among three groups(F=0.299, =0.742), while there were significant differences in postoperative drainage volume, recessive blood loss, and total blood loss among three groups. The number of blood transfusion were as following, 2 cases in group A, 8 cases in group B, and 16 cases in group C, there were statistically significant differences among three groups(χ² =16.01, 0.05), and no difference in occurrence of lower limb vein thrombosis after operation.@*CONCLUSIONS@#The method of using tranexamic acid before upper tourniquet, after closure of incision and before loosening tourniquet-combined with the flexion position of hip and knee could effectively reduce postoperative drainage volume, recessive bleeding, total blood loss and blood transfusion cases after total knee arthroplasty, while it does not increase risk of deep vein thrombosis and pulmonary embolism.

The study of pathogenic mechanism in hereditary gingival fibromatosis / 实用医学杂志

Objective To determine the role of B cell specific moloney leukemia virus insert site 1 (Bmil) in hereditary gingival fibromatosis (HGF). Methods The HE staining was used to analyze the HGF and normal groups. The protein and mRNA of the Bmil, PCNA and caspase-3 in 2 groups were detected by immunohistochemistry and PCR, respectively. Results In HGF group, the gingival epithelial was incrassation, epithelial spikes was elongation, connective tissue was rich in fibroblast and collagen fibers, aless blood vessels and mild inflammatory hyperplasia. Bmil expression was higher (P < 0.05) and caspase-3 expression was lower (P < 0.05) in HGF group than in normal group. There was no difference of PCNA expression in the 2 groups (P> 0.05).Conclusion The Bmil might have a role in the pathogenesis of HGF by decreasing caspase-3 and caspase-3 mRNA.

Food matching based on herbal properties of formulas in "Treatise on Febrile Diseases" / 中国中药杂志

Based on databases for herbal properties of formulas and foods recorded in "Treatise on Febrile Diseases", a case study was conducted for the food matching method according to herbal properties of formulas in "Treatise on Febrile Diseases". The result show that the method was technically feasible once the herbal properties of foods were determined. Moreover, according to herbal properties of target formulas, the compositions of foods were effectively defined. In this study, researchers determined the similarity between the food matching scheme and the target formulas in function and efficacy, provided a quantitative method for food formulation and promote the development of application technology of the herbal property theory and the compatibility theory.

Morphology study of mandibular incisive canal in adults based on cone-beam computed tomography / 中华口腔医学杂志

<p><b>OBJECTIVE</b>To investigate the mandibular incisive canal (MIC) with cone-beam computed tomography (CBCT).</p><p><b>METHODS</b>Fifty adults were selected and CBCT was taken. The CBCT data were reconstructed to evaluate the visibility, shape, diameter, length of the MIC and its relationship with mandible.</p><p><b>RESULTS</b>MIC could be identified in 100% (100/100) of CBCT with good clarity in 71% (71/100). The diameters (horizontal diameter versus vertical diameter) of MIC became smaller from origin to end (left origin of MIC was 2.17 mm×2.22 mm, left end was 0.82 mm×0.92 mm; right origin of MIC was 2.14 mm×2.08 mm, right end was 0.87 mm×0.86 mm). The left and right mean length of MIC was 17.84 mm and 17.73 mm respectively. In bucca-lingual direction, MIC was close to buccal cortical border, and in vertical direction, MIC was close to lower margin of mandible. The distance from MIC to apex of root was shortest in canine.</p><p><b>CONCLUSIONS</b>CBCT can identify MIC with high visibility and prominent clarity. In the interforaminal region of mandible, MIC was close to buccal and lower margin of mandible.</p>

The role of Bmi-1 gene in submandibular gland of mice / 中华口腔医学杂志

<p><b>OBJECTIVE</b>To determine the role of Bmi-1 in the submandibular gland (SMG) of mice.</p><p><b>METHODS</b>SMG of 4-week wild-type (WT) and Bmi-1 null (Bmi-1(-/-)) mice was analyzed on the weight, salivary flow rate, hematoxylin-eosin staining morphological differences and the changes in proliferation and aging by histology, immunohistochemistry and Western blotting.</p><p><b>RESULTS</b>Compared with WT mice, the average static salivary flow rate [WT:(0.21 ± 0.02) µg/min,Bmi-1(-/-): (0.10 ± 0.02) µg/min] (P = 0.001) and the submandibular gland weight [WT: (1.89 ± 0.15) µg], Bmi-1(-/-): [(1.34 ± 0.07)µg] (P = 0.003) of the male Bmi-1(-/-) mice were significantly decreased, the number of gland duct increased, and the granular convoluted duct showed reduced diameter and branches. More senescence-associated β-galactosidase positive cells existed in SMG of Bmi-1(-/-)mice (WT:0.00, Bmi-1(-/-): 0.18 ± 0.02), and Ki-67 immunopositive cells decreased in SMG of Bmi-1(-/-) mice (WT:0.40 ∼ 0.47, Bmi-1(-/-): 0.18 ∼ 0.20) (P = 0.000). The expression of p16 (WT:1.00 ± 0.12, Bmi-1(-/-): 0.00 ± 0.00) (P = 0.003) and p19 (WT:0.97 ± 0.09, Bmi-1(-/-): 5.09 ± 0.21) (P = 0.004) were up-regulated dramatically in SMG of the Bmi-1(-/-) mice.</p><p><b>CONCLUSIONS</b>Bmi-1 gene deficiency causes abnormal function of SMG by inducing senescence phenotype of SMG.</p>