Efficacy and safety of CM310 in moderate-to-severe atopic dermatitis: A multicenter, randomized, double-blind, placebo-controlled phase 2b trial / 中华医学杂志(英文版)

BACKGROUND@#Atopic dermatitis (AD) affects approximately 10% of adults worldwide. CM310 is a humanized monoclonal antibody targeting interleukin-4 receptor alpha that blocks interleukin-4 and interleukin-13 signaling. This trial aimed to evaluate the efficacy and safety of CM310 in Chinese adults with moderate-to-severe AD.@*METHODS@#This multicenter, randomized, double-blind, placebo-controlled, phase 2b trial was conducted in 21 medical institutions in China from February to November 2021. Totally 120 eligible patients were enrolled and randomized (1:1:1) to receive subcutaneous injections of 300 mg CM310, 150 mg CM310, or placebo every 2 weeks for 16 weeks, followed by an 8-week follow-up period. The primary endpoint was the proportion of patients achieving ≥75% improvement in the Eczema Area and Severity Index (EASI-75) score from baseline at week 16. Safety and pharmacodynamics were also studied.@*RESULTS@#At week 16, the proportion of EASI-75 responders from baseline was significantly higher in the CM310 groups (70% [28/40] for high-dose and 65% [26/40] for low-dose) than that in the placebo group (20%[8/40]). The differences in EASI-75 response rate were 50% (high vs . placebo, 95% CI 31%-69%) and 45% (low vs . placebo, 95% CI 26%-64%), with both P values <0.0001. CM310 at both doses also significantly improved the EASI score, Investigator's Global Assessment score, daily peak pruritus Numerical Rating Scale, AD-affected body surface area, and Dermatology Life Quality Index compared with placebo. CM310 treatment reduced levels of thymus and activation-regulated chemokine, total immunoglobulin E, lactate dehydrogenase, and blood eosinophils. The incidence of treatment-emergent adverse events (TEAEs) was similar among all three groups, with the most common TEAEs reported being upper respiratory tract infection, atopic dermatitis, hyperlipidemia, and hyperuricemia. No severe adverse events were deemed to be attributed to CM310.@*CONCLUSION@#CM310 at 150 mg and 300 mg every 2 weeks demonstrated significant efficacy and was well-tolerated in adults with moderate-to-severe AD.

Natural Products Treat Atopic Dermatitis via NF-κB Signaling Pathway： A Review / 中国实验方剂学杂志

Atopic dermatitis （AD） is a chronic， recurrent， inflammatory， and pruritus skin disease caused by multiple internal and external factors， ranking first in the global burden of skin diseases. Due to the adverse reactions and high costs of conventional treatments and biologics， the development of natural products has attracted much attention. The nuclear factor-κB （NF-κB） signaling pathway is a key pathway for inhibiting inflammation and modulating immunity. This paper summarizes the pharmacological effects and molecular mechanisms of natural products such as flavonoids， alkaloids， phenols， terpenoids， coumarins， glycosides， and anthraquinones via NF-κB signaling pathway， aiming to provide guidance for the development of natural products. Basic studies have shown that natural products have high safety and efficacy. Oral or topical administration of natural products can regulate the phosphatidylinositol 3-kinase （PI3K）/protein kinase B （Akt）， mitogen-activated protein kinase （MAPK）， nuclear factor erythroid 2-related factor 2 （Nrf2）， high mobility group box 1 protein （HMGB1）/receptor for advanced glycation endproducts （RAGE）， and nucleotide-binding oligomerization domain-like receptor protein 3 （NLRP3） signaling pathways to exert anti-inflammatory， anti-allergy， antioxidant activities， thus reversing the pathological changes of AD. However， it is worth noting that the clinical application of natural products is still insufficient， and more rigorous clinical trials are still needed to verify their effects. The basic experiments and clinical evidence prove that natural products may play a role in alleviating AD， which provide a basis for evaluating the functioning mechanism of natural active substances and enrich the candidates for the development of potential drugs.

Clinicopathological analysis of 56 cases of swimming pool granuloma / 中华皮肤科杂志

Objective:To investigate clinicopathological features of swimming pool granuloma.Methods:From January 2018 to January 2021, 56 patients with swimming pool granuloma were collected from Tianjin Academy of Traditional Chinese Medicine Affiliated Hospital, and their clinical and pathological characteristics were retrospectively analyzed.Results:Among the 56 patients, 16 were males and 40 were females, with an average age of 60.84 years. The most common exposure type among these patients was handling of infected fishes or seafood by aquaculture workers and residents in daily cooking (31/56) , the average incubation period was 4.58 weeks, and the average time to diagnosis was 3.19 months. All skin lesions were located at the upper extremities, mainly manifesting as erythema and papular nodules, and sometimes as pustules, ulcers, granulomas or verrucous plaques. Eleven patients presented with solitary skin lesions, 36 with sporotrichoid skin lesions, and 6 with bilateral sporotrichoid lesions. Histopathologically, infectious granulomas were observed in all patients except 4 without specific changes, and 37 presented with characteristic exudative necrosis, with varying amounts of fibrinoid exudative or necrotic elements in the center, and a large number of neutrophils, histiocytes and multinucleated giant cells infiltrating inside or around it. Sequences of Mycobacterium marinum were identified in all 56 cases by metagenomic DNA sequencing of pathogenic microorganisms. Conclusion:In Tianjin area, swimming pool granuloma mostly affected elderly females, handling of infected fishes or seafood was the main type of exposure, and skin lesions were histopathologically characterized by exudative necrotic granulomas.

Influence of preoperative optimization of Hb level on perioperative blood transfusion and postoperative outcome in patients with preoperative anemia / 中国输血杂志

【Objective】 To investigate the effect of optimized preoperative hemoglobin (Hb) level on clinical outcome in patients undergoing coronary artery bypass grafting (CABG). 【Methods】 Retrospective analysis was performed on patients who were selected to receive CABG from April 2020 to August 2021 in our hospital. Preoperative basic data, perioperative blood transfusion volume, blood transfusion rate, acute liver function impairment, renal function impairment (AKI), ICU stay, length of hospital stay, and in-hospital mortality of patients, meeting the inclusion criteria, were collected. According to the perioperative red blood cell transfusion, the optimal preoperative Hb threshold was calculated by receiver operating characteristic curve (ROC). According to the threshold, all patients were divided into two groups, and the blood transfusion volume and clinical outcomes of the two groups were compared to evaluate the predictive value of the optimal threshold of Hb. 【Results】 A total of 915 patients who met the inclusion criteria were enrolled in the study. The optimal threshold for predicting red blood cell transfusion rate by calculating preoperative Hb value by ROC curve was 118 g/L for males and 116g/L for females. Group A: Hb≤ threshold (n=293) was divided into the red blood cell transfusion group A1 and the red blood cell non-transfusion group A2. Group B: Hb>threshold (n=622) was divided into the red blood cell non-transfusion group B1 and no red blood cell non-transfusion group B2. The risk factors for perioperative red blood cell transfusion were age (OR=1.033 874, 95%CI 1.000 4-1.068 3, P<0.01), gender (female) (OR=3.268 5, 95%CI 2.353 1-4.540 0, P<0.01), BMI (OR=0.927 8, 95%CI 0.883 3-0.974 4, P<0.01), chronic renal insufficiency (CKD) (OR=2.041 1, 95%CI 1.347 8-3.091 0, P<0.01). Preoperative Hb≤ threshold (OR=3.517 4, 95%CI 2.502 1-4.944 7, P<0.01) was an independent risk factor for perioperative red blood cell transfusion. Perioperative red blood cell transfusion in patients with preoperative anemia further increases the incidence of postoperative complications (acute liver injury, AKI) and length of ICU stay. 【Conclusion】 Preoperative Hb≤ threshold can effectively predict perioperative red blood cell transfusion in patients with CABG, and increase the risk of postoperative acute liver injury, AKI, prolonged ICU stay and hospital stay. Optimizing the preoperative Hb level in CABG patients, increasing the Hb level to 118 g/L in males and 116 g/L in females can reduce the incidence of perioperative red blood cell transfusion and postoperative complications.

Efficacy and safety of two prolonged therapeutic regimens in patients with plaque psoriasis after treatment with tazarotene/betamethasone dipropionate cream: a multicenter clinical observation / 中华皮肤科杂志

Objective:To explore the prolonged therapeutic regimen for patients with plaque psoriasis, who showed a positive response to 4-week treatment with tazarotene/betamethasone dipropionate cream, but were not completely cured.Methods:A multicenter, randomized, open-labelled, parallel-controlled clinical study was conducted. A total of 232 patients with plaque psoriasis were collected, who showed a positive response to previous 4-week treatment with 0.05%/0.05% tazarotene/betamethasone dipropionate cream, but were not completely cured with the psoriasis area and severity index[PASI] improvement rate being 50%-90%. At week 5, they were randomly and equally divided into 2 groups: test group receiving treatment with 0.05%/0.05% tazarotene/betamethasone dipropionate cream once a day, and control group receiving a sequential regimen of 0.05% tazarotene gel on weekdays once a day followed by 0.05%/0.05% tazarotene/betamethasone dipropionate cream on weekends once a day. After 2-and 4-week prolonged treatment, the efficacy and safety of the 2 therapeutic regimens were evaluated and compared. Measurement data were compared between 2 groups by using covariance analysis or t test, and enumeration data were compared by using chi-square test. Results:From the 5th to the 8th week, 200 out of the 232 patients completed the treatment. Data collected from 110 patients in the test group and 112 in the control group were enrolled into the full analysis set, and those from both 113 patients in the test group and control group were enrolled into safety analysis set. After consecutive 6-and 8-week treatment, the decline rates of the PASI score were 73.05% ± 16.69% and 78.46% ± 15.40% respectively in the test group, which were significantly higher than those in the control group (66.73% ± 21.77%, 67.02% ± 34.19%, respectively, both P < 0.05) . After 6-week treatment, the proportion of subjects who achieved PASI90 was significantly higher in the test group (14 cases, 12.7%) than in the control group (5 cases, 4.5%, χ2=4.842, P=0.028) ; After 8-week treatment, the proportions of subjects who achieved PASI75 and PASI90 (61.8%, 23.6%, respectively) were significantly higher in the test group than in the control group (48.2%, 12.5%, respectively, both P < 0.05) . During the consecutive 8-week treatment, there was no significant difference in the incidence rate of adverse reactions between the test group (15.0%) and control group (23.9%, χ2=2.822, P=0.093) . Conclusion:For patients who showed a positive response to 4-week treatment with 0.05%/0.05% tazarotene/betamethasone dipropionate cream, but were not completely cured, the continuous use of 0.05%/0.05% tazarotene/betamethasone dipropionate cream for 4 weeks is a superior therapeutic regimen compared with the sequential regimen of 0.05% tazarotene gel followed by 0.05%/0.05% tazarotene/betamethasone dipropionate cream.

Research progress of immunopharmacological experiments of anti-allergic effects of Traditional Chinese Medicine / 国际中医中药杂志

Traditional Chinese Medicine (TCM) treating allergic diseasesis effective and with few adverse reactions. The effects of TCM compound, TCM extracts and Chinese herbal monomers played the anti-allergic role in multiple stages. Such as reducing and preventing target cell degranulation, releasing biologically active mediators, and inhibiting the conduction of signal pathways. Recent studies have found that in addition to anti-allergic effects by regulating cellular and humoral immunity, TCM can also enhance the body’s non-specific immune function to different degrees and help eradicate certain intractable allergic diseases. The development of new therapeutic agents for allergic diseases with good effect and less adverse reactions from Chinese herbal medicine will become a trend in the future research and have broad medical prospects.

Impact and mechanisms of fecal microbiota transplantation on sepsis associated encephalopathy via intestinal microbiota / 中国中西医结合急救杂志

Objective To observe the effects of fecal microbiota transplantation on intestinal microbiota and brain function in sepsis rats. Methods Sixty male Sprague Dawley (SD) rats were divided into sham operation group, model group and fecal microbiota transplantation (FMT) group by random number table, each group 20 rats. The rat model of sepsis was established by injection of lipopolysaccharide (LPS) 10 mg/kg in tail vein. FMT group received nasogastric infusion of feces from healthy donor. Fecal samples were collected on the 6th day after the modeling to detect the levels of intestinal microbiota composition; the brain function was also evaluated by electroencephalogram (EEG), and the proportion of each waveform in EEG was calculated. After sacrifice of rats in different groups, the brain tissues were taken, the levels of protein expression and positive cells of Iba-1 in brain tissue were detected by Western Blot and immunohistochemistry method. Results ① Intestinal flora analysis showed that: the diversity index and Chaol index of the intestinal microbiota in model group were significantly lower than that in sham operation group (observed species:282±40 vs. 473±37, Chao1 index: 730±21 vs. 837±27, both P < 0.05); compared with the model group, the diversity index and Chaol index in FMT group were obviously higher (observed species: 461±20 vs. 282±40, Chao1 index:840±16 vs. 730±21, both P < 0.05). At phylum, family, genus level analysis showed that the proportion of Firmicutes phylum and Fusobacterium were obviously lower than those of sham operation group [Firmicutes phylum (22.12±1.34)% vs. (78.01±1.23)%, Fusobacterium: (2.03±0.17)% vs. (5.03±0.19)%, both P < 0.05], and the proportions of Proteobacteria, Bacteroidetes phyla and Acidaminococcaceae, Fusobacteriaceae, Enterbacteriacecae, Alistipes were markedly higher in model group [Proteobacteria: (70.21±2.35)% vs. (19.45±2.17)%, Bacteroidetes phyla: (4.12±0.19)% vs. (2.50±0.64)%, Acidaminococcaceae: (12.51±0.87)% vs. (1.01±0.12)%, Fusobacteriaceae: (13.62±1.27)% vs. (2.31±0.19)%, Enterbacteriacecae: (18.24±2.13)% vs. (4.15±1.51)%, Alistipes: (4.53±0.27)% vs. (1.47±0.33)%, all P < 0.05]; compared with the model group, the proportion of Firmicutes phylum and Faecalibacterium in FMT group were significantly higher [Firmicutes phylum: (72.14±2.31)% vs. (22.12±1.34)%, Faecalibacterium: (5.01±0.27)% vs. (2.03±0.17)%, both P < 0.05], and Proteobacteria, Bacteroidetes phyla and Acidaminococcaceae, Fusobacteriaceae, Enterbacteriacecae in FMT group were obviously lower [Proteobacteria: (14.23±1.98)% vs. (70.21±2.35)%, Bacteroidetes phyla: (3.15±0.18)% vs. (4.12±0.19)%, Acidaminococcaceae: (0.91±0.11)% vs. (12.51±0.87)%, Fusobacteriaceae: (1.25±0.15)% vs. (13.62±1.27)%, Enterbacteriacecae: (3.50±0.21)% vs. (18.24±2.13)%, all P < 0.05]. ② EEG analysis showed that the percentages of δ wave in EEG in model group was significantly higher after modeling than that in sham operation group [(16.86±0.50)% vs. (10.67±0.65)%, P < 0.05]; the ratios of δ wave in EEG was significantly lower in FMT group than that in the model group [(12.87±0.60)% vs. (17.35±0.41)%, P <0.05]. The incidence of abnormal EEG in sham operation group was 0, the incidence of abnormal EEG in model group was significantly increased [the ratios of δpredominant wave, θpredominant wave, low-voltage were 66.7% (6/9), 66.7% (6/9), 77.8% (7/9) respectively], the ratios of above abnormal waves in EEG in FMT group were obviously lower than those in model group [the ratios of above abnormal waves in FMT group were respectively 9.1% (1/11), 9.1% (1/11), 18.2%(2/11)]. ③ Western Blot analysis showed that the protein expression of Iba-1 in cortex in model group obviously was higher than that in sham operation group (Iba-1/β-actin: 1.39±0.16 vs. 0.67±0.18, P < 0.05); the expression of Iba-1 in cortex tissue of FMT group was markedly lower than that in model group (Iba-1/β-actin: 0.51±0.14 vs. 1.39±0.16, P < 0.05). ④ Immunohistochemistry of Iba-1 in cortex analysis showed that there were no Iba-1 positive cells in the cortex in sham operation group; Iba-1 positive cells were found in the cortex in model group; the number of Iba-1 positive cells in FMT group was less than that in model group. Conclusion FMT can improve the construction of intestinal microbiota, and ameliorate the brain dysfunction in SAE.

Ovarian cancer cells promote glycolysis metabolism of peripheral CD4 + T cells / 临床检验杂志

Objective@#To investigate the effects of ovarian cancer cells on the glycolysis metabolism and functions of peripheral CD4 + T cells. @*Methods@#We established a coculture system of human CD4 + T cells with ovarian cancer cell SKOV3, and the mRNA expression levels of 8 glycolysis-related genes (mTORC1, HIF1α, GLUT1, GPI, ENO1, PKM2, LDHα and PDK1) in cocultured CD4 + T cells were determined by real-time fluorescence quantitative PCR. The levels of glucose uptake and glycolysis were detected by colorimetry. The proportion of CD4 + CD25 + Foxp3 + T cells was tested by flow cytometry. The proliferation levels of CD4 + T cells were measured by tritium incorporation method. The expression levels of 8 glycolysis-related genes in peripheral CD4 + T cells were determined by real-time fluorescence quantitative PCR in 10 ovarian cancer (OC) patients, 10 benign ovarian tumor (BOT) patients and 10 healthy control (HC). @*Results@#Results: Compared with the CD4 + T cells in single culture without SKOV3, the expression levels of 8 glycolysis-related genes in CD4 + T cells cocultured with SKOV3 were elevated (all P＜0.01). The levels of glucose uptake and glycolysis were increased (P＜0.05). The proportion of CD4 + CD25 + Foxp3 + T cells was up-regulated (P＜0.05) and the proliferation levels of CD4 + T cells were decreased (P＜0.05). Moreover, the mRNA expression levels of all the glycolysis-related genes were increased (all P＜0.05) in the peripheral CD4 + T cells of OC patients compared with BOT patients and HC. @*Conclusion@#Ovarian cancer cells could promote the glycolysis metabolism of CD4 + T cells, which may be relevant to its differentiation and functions.

Predictive value of HIT-antibodies detection for new thrombosis in heparin-induced thrombocytopenia / 中华检验医学杂志

Objective To investigate the predictive value of HIT-antibodies(HIT-Ab) detection for new thrombus in suspected Heparin-Induced thrombocytopenia (HIT). Methods Retrospective cohort study. 472 suspected HIT patients were collected from July 2016 to November 2018, and all subjects under-went a 4Ts score and were sent for HIT-Ab tests. According to the results of HIT-Ab, there were four groups:412 cases of negative HIT-Ab (0-0.9 U/ml), 45 cases of weak-positive HIT-Ab (1.0-4.9 U/ml), 12 cases of moderate-positive HIT-Ab (5.0-15.9 U/ml), and 3 cases of strong-positive HIT-Ab (≥16.0 U/ml) respective-ly. Ultrasound or CT examination was used to confirm new thrombosis as a standard to evaluate the value of HIT-Ab for predicting new thrombus. The diagnostic efficacy of HIT-Ab for HIT was evaluated in clinically confirmed HIT. Results The incidence rates of new thrombus in each group were: 15.8％ in Negative HIT-Ab group (62/412), 48.9％in Weak-positiveHIT-Ab group (22/45), 75.0％in Moderate-positive HIT-Ab group (9/12), and100％in Strong-positive HIT-Ab group (3/3)(P<0.00). When HIT-Ab≥1.0 U/ml, the speci-ficity for diagnosing new thrombus was 93.0％, the sensitivity was 34.2％, the negative predictive value (NPV) was 84.2％, and the positive predictive value (PPV) was 56.5％. The diagnostic rates of HIT in each group were:negative 0％(0/412), weak-positive 62.2％(28/45), moderate-positive (12/12) and strong-positive (3/3) were 100％. When HIT-Ab≥ 1.0 U/ml, the specificity for HIT diagnosis was 96.0％, the sensitivity was 100％, NPV was 100％, and PPV was 71.5％. Conclusions In suspected HIT patients, the incidence of new thrombosis increases with the elevated HIT-Ab level. HIT-Ab detection can be used as a crucial tool for new thrombosis prediction and HIT diagnosis in suspected HIT patients. Clinicians can develop treatment strategies based on HIT-Ab levels.

Influence on curative effect and blood brain barrier function of minimally invasive puncture drainage in treatment of patients with hypertensive intra-cerebral hemorrhage / 中国中西医结合急救杂志

Objective To explore the influence of minimally invasive puncture drainage on blood brain barrier (BBB) function and its mechanism.Methods Ninety-two patients with hypertensive intra-cerebral hemorrhage (HICH) in the Department of Neurosurgery of Jiaxing Affiliated Second Hospital of Zhejiang Province were divided into a control group and an observation group, according to random number table method, 46 cases in each group. In the control group, the conventional craniotomy was performed, while in the observation group, minimally invasive puncture drainage was carried out to remove the hematoma. The National Institute of Health Stroke Scale (NIHSS) were used to evaluate the neural function, the level of serum myelin basic protein (MBP) was detected by enzyme linked immunosorbent assay (ELISA), the central nervous specific serum protein S100 level was measured by electrochemical luminescence method, the albumin levels in serum and cerebrospinal fluid were determined by automatic biological analyzer, and the BBB index was calculated. After 14 days of surgery, the curative effect and incidence of complications of two groups were observed.Results After surgery, the NIHSS scores of two groups were obviously lower than those before surgery, and the degree of descent in observation group was more significant than that in the control group (score: 3.68±2.39 vs. 5.43±3.89,P < 0.05); after surgery, the levels of MBP, S100, albumin in cerebrospinal fluid and BBB in two groups were higher than those before surgery [MBP (μg/L): 3.02±0.28 vs. 3.81±0.29, S100 (μg/L): 0.95±0.24 vs. 1.34±0.27, cerebrospinal fluid albumin (μg/L): 9.89±0.78 vs. 21.43±1.14, BBB index: 0.22±0.04 vs. 0.48±0.05], the differences being statistically significant (allP < 0.05), but the change values in the observation group were less significant than those in the control group. The total effective rate in observation group was significantly higher than that in the control group [84.78% (39/46) vs. 65.22% (30/46),χ2 = 4.696,P = 0.030]. The incidence of wound infection, gastrointestinal bleeding in observation group was markedly lower than that in the control group [16.67% (6/46) vs. 36.96% (17/46), χ2 = 4.120,P = 0.042].Conclusion The minimally invasive puncture drainage has unequivocal clinical curative effect in treatment of patients with HICH, it can protect the nerve and BBB functions and reduce the incidence of complications.

Association between D-dimer levels and clinical events in patients with mechanical heart valve replacement under oral anticoagulation therapy / 中华心血管病杂志

Objective@#To investigate the association between D-dimer levels and clinical events in patients with mechanical heart valve replacement under oral anticoagulation therapy.@*Methods@#This prospective study included 640 consecutive patients underwent mechanical heart valve replacement in Wuhan Asia Heart Hospital between January 2013 and June 2014.Patients were assigned to abnormal D-dimer group (D-dimer level>cut off value, n=88) and normal D-dimer group (D-dimer level≤cut off value, n=552) according to D-dimer levels measured at 3 months after the initiation of oral anticoagulation therapy.All patients were followed up for 24 months or until the observation of the end points, which included thrombotic events, bleeding events and all-cause deaths.The anticoagulation therapy was monitored once per 1-2 months by the international normalized ratio (INR), and the target value was 1.8-3.0.@*Results@#During a follow-up period of 24 months, rates of total clinical events (19.30%(17/88) vs. 5.8%(32/552), P<0.01), thrombotic events (11.4%(10/88) vs. 2.3%(13/552), P<0.01), and all-cause deaths (8.0%(7/88) vs. 2.0%(11/552), P<0.01) were all significantly higher in abnormal D-dimer group than in normal D-dimer group.There were no significant difference in bleeding events between the two groups (2.3%(2/88) vs. 3.1%(17/552), P=0.77). Multivariate Cox regression analysis showed that high D-dimer level was an independent risk factor of total clinical events (HR=3.86, 95%CI 1.92-7.76, P<0.01), thrombotic events(HR=5.29, 95%CI 2.12-13.10, P<0.01), and all-cause deaths(HR=5.32, 95%CI 1.71-16.60, P<0.01), but which was not correlated with bleeding events(HR=1.36, 95%CI 0.27-6.84, P=0.71).@*Conclusion@#Elevated D-dimer levels are linked with clinical events in patients with mechanical heart valve replacement under oral anticoagulation therapy.

Automated immunoassays of heparin induced thrombocytopenia antibodies is superior to the 4T′s score in HIT diagnostic efficacy / 中华检验医学杂志

Objective To discuss the diagnostic value of HIT-antibodies in suspected HIT patients with heart diseases.Methods A single center study.We collected 242 blood samples of suspected HIT patients whose platelet count decreased after heparin application during July 1 st ,2012 to June 30th ,2016 in Wuhan Asia Heart Hospital and detected the concentration of HIT antibodies , meanwhile the 4T′s score were calculated.Among the study objects , there are 206 patients received cardiac surgery , 28 received cardiac interventional therapy and 8 received drug therapy.And we divided them into HIT group (44, median age 57.5, 23 females ) and non-HIT group ( 198, median age 63.5, 87 females ) according to clinical diagnosis.Quantitative data was analyzed by independent t-test or Mann-Whitney U test.Qualitative data was analyzed by Fisher′s exact test.We drew ROC curve according to the statistical analysis to determine the optimal threshold value of antibodies in diagnosis of HIT andsensitivity , specificity, negative likelihood ratio, positive likelihood ratio of the HIT antibody detection .Therefore, we can assess the value of HIT antibody detection in HIT clinical diagnosis and treatment .Moreover, we used the optimal threshold value of antibodies to testify the suspected HIT patients .Results The HIT antibody concentration of HIT group (44) and non-HIT group ( 198 ) are 3.2 ( 95% CI:1.8 -5.5 ) U/ml and 0.4 ( 95% CI:0.3 -0.4 ) U/ml, respectively.The concentration of HIT group is much higher than the non-HIT group(P<0.000).When the cut-off value of HIT-Ab is set at 0.9 U/ml, sensitivity and specificity are 93.2%and 91.9%, respectively. And negative likelihood ratio and positive likelihood ratio are 0.07 and 11.53, respectively.When the cut-off value of HIT-Ab is set at 0.6 U/ml, sensitivity and specificity are 100.0%and 73.7%.HIT-Ab and 4T′s score of ROC-AUC are 0.971 and 0.745, respectively.The diagnosis value of HIT-Ab in HIT is significantly higher than the 4T′s score ( P<0.000).Conclusions HIT antibody detection is a simple and effective auxiliary diagnostic method in HIT exclusion .And HIT antibody detection is more optimal than the 4T′s score in HIT diagnosis and treatment .

Assessment of platelet function by thromboelastography can reduce the waiting time before coronary artery bypass grafting / 中华检验医学杂志

Objective To evaluate the effect of TEG ( thromboelastography ) in the timing choose of CABG( coronary artery bypass grafting ) surgery for patients that receiving DAPT treatment .Methods This study is prospective analysis from November 2013 to May 2014 in Wuhan Asia Heart Hospital.The study cohort consisted of 1 201 patientswith acute coronary syndrome , theage range from 43 to 79 years (61.1 ±10 years) with 134 males and 79 females.and the patients undergo DAPT ( aspirin 100 mg/d, clopidogrel 75 mg/d) which were prepare to the coronary artery bypass grafting and then randomly divided into two groups according to the ratio of 1∶1.There were 101 patients, using perioperative TEG inspection , which conduct the choose of surgery timing according to the ADP-induced platelet-fibrin clot strength ( MAADP) after 24 h of the withdraw of DAPT.Distribute the patients into≥50 mm, 35-50 mm and <35 mm groups according to the MAADPresults, and theirCABG was complete within 1 day, 3-5 days and after 5 days respectively. The other 100 patientsacceptancoronary artery bypass grafting surgery and DAPT patients but without TEG examination as the control group , which were withdrawal the DAPT for 5 -7 days by routine before operation.The primary endpoint is 24 h chest tube drainage andkey secondary endpoint is the total number of transfused red blood cells .Recorded the mean intubation time , ICU stay times , Median length of hospital stayandrethoracotomyrates, 30-day mortality, and 30-day readmission rate at the same time.Using Fisher in the variables , t-test when two groups were compared , use ANCOVA for variable factor correction and Statistical analysis was performed using chi-square test in the calculate of results .Results The average chest drainage in TEG group and the control was 438.8 ml vs 487.8 ml(t=1.063,P=0.289),and the total amount of transfused red blood cell in both groups were 493.8 ml vs 551.6 ml(t=1.228,P=0.2227), there were no significant difference between the two groups .The total waiting time in the three categories of patients in TEG group is 294 days ( an average waiting time of 3.11 days per patient ) and was reduced 38%(3.1 days to 5 days)than the guidelines recommend.Conclusions Although the perioperative bleeding and red blood cell transfusion , the occurrence and postoperative adverse events were similar in two groups , but using thrombelastographto measure platelet function before CABG surgery can help to choose the timing of surgery and reduce the waiting time before surgery .

Clinical study on the efficiency of rhEGF gel to skin function of facial hormone-dependent dermatitis / 天津医药

Objective To study the clinical effects of recombinant human epidermal growth factor (rhEGF) gel combined with tacrolimus treatment on facial hormone-dependent dermatitis, and to investigate its influence in skin function and recurrence of dermatitis. Methods Forty-eight outpatients with facial hormone-dependent dermatitis were randomly divided into treatment group (n=24, treatment with tacrolimus combined rhEGF gel) and control group (n=24, treatment with tacrolimus). The moisture of skin, sebum content and transepidermal water loss (TEWL) were examined before treatment and 4 weeks after treatment in two groups. Eczema area and severity index (EASI) were calculated at 1 week, 2 weeks and 4 weeks after treatment. The adverse reactions and recurrence of dermatitis were observed during the treatment as well. Results Compared with pre-treatment, the moisture of skin and sebum content were increased (P0.05), but it is much higher in treatment group after two-week treatment (79.2%vs. 50.0%, P<0.05) and after four-week treatment (91.2% vs. 62.5%, P<0.05). Furthermore, there was no adverse reaction in the treatment group, and the recurrence rate was much lower in treatment group (12.5%) than that of the control group (37.5%,χ2=4.03,P<0.05). Conclusion Recombinant human epidermal growth factor gel has an auxiliary curative effect on facial hormone-dependent dermatitis and can significantly improve skin function, and the recurrence rate of dermatitis is low.

Correlation of serum S100B, IL-6 and intracranial pressure in patients with severe craniocerebral injury / 中国生化药物杂志

Objective To investigate the correlation between serum S100B, IL-6 and intracranial pressure in patients with severe craniocerebral injury.Methods 81 cases of patients with severe brain injury in our hospital from August 2012 to April 2016 were selected,intracranial pressure was monitored immediately after admission to calculate the average daily ICP level ,and venous blood were collected after craniocerebral injury 6,12,24,48, 72 hours.Detection of serum S100B protein and IL-6 levels,and the correlation analysis with the level of intracranial pressure.Results Patients with severe craniocerebral injury S100B levels increased gradually after injury, reached the peak at 24 hours, then decreased gradually; while patients with IL-6 and intracranial pressure after injury gradually increased, the difference was statistically significant in different time points among the S100B,IL-6 and intracranial pressure levels (P<0.05).Conclusion The changes of intracranial pressure after severe craniocerebral injury were proportional to the levels of serum S100B and IL-6,S100B and IL-6 can reflect the changes of intracranial pressure,intracranial pressure changes predicted by S100B plasma concentration in 48 hours were more sensitive than those in the same concentration of IL-6.

Deciphering the platelet function test inacute coronary syndrome patients subjected to anti-platelet therapy / 中华检验医学杂志

Anti-platelet therapy plays a key role in acute coronary syndrome ( ACS ) treatments.Platelet function tests could monitor the effect of anti-platelet drugs′, however, it is still under debate that whether platelet function monitoring could be used to adjust antiplatelet therapy.Additionally, there are a number of platelet function assays, and each of them has specifically advantages and disadvantages.This article reviewed evidence-based information, guidelines, consensus and clinical experience about platelet function monitoring in ACS patients, which was intend to help laboratory technicians and clinicians understanding the value of platelet function tests in monitoring anti-platelet therapy.

Effect of ossicular chain reconstruction without mastoidectomy on hearing in patients with chronic otitis media / 中国耳鼻咽喉头颈外科

OBJECTIVE To investigate a better surgical treatment for chronic otitis media.METHODS 106 patients with chronic otitis media were collected from hospital. We assessed effectss of ossicular chain reconstruction without incision of mastoid (method 1) and ossicular chain reconstruction with incision of mastoid (method 2).We compared therapeutic effect, complication, and surgical treatment between these two groups. Furthermore, we performed stratification analysis by normal or abnormal function of stapes, Eustachian and tendon of tensor tympani, using logistic regression model. RESULTS The improvement of hearing by method 1 and 2 were 85.71%, 68.00% (P=0.0296). The recovery rate of drying ear were 92.86%, 88.00% (P=0.3931). The proportion of continued tinnitus were 10.71%, 18.00% (P=2827). There were 85.71% and 36.00% samples with numeric pain score from 1 to 3 (P<0.0001). There were 89.29%, 24.00% samples with operation hour <2.0 hour (P<0.0001). For those patients with normal function of stapes, Eustachian and tendon of tensor tympani, the OR of method 1 were 2.91, 3.08 and 3.33 For those patients with abnormal function, the OR was 3.27, 2.89 and 1.33. CONCLUSION Ossicular chain reconstruction without incision of mastoid is a suitable surgical treatment for chronic chronic otitis media,it could improve hearing more effectively with entire debridement of the focus and shorter operation time.

Structure, Immunogenicity and Clinical Value of Chlamydiaphage Capsid Protein 3 / 病毒学报

We wished to assess the role of chlamydia micro virus capsid protein Vp3 in recombinant molecules, chart its molecular evolution, screen the wild-type strain, and reveal its value in clinical research. Using a protein BLAST multiple-alignment program, we compared various strains of Chlamydia micro virus capsid protein Vp3 sequences. Using a "distance tree" of those results, we created a phylogenetic tree. We applied the Karplus-Schulz method of flexible-region analyses for highly conserved alignments of amino-acid sequences. Gamier-Robson and Chou-Fasman methods were employed to analyze two-level structures of sequences. The Emini method was used for analyses of the accessibility of surface epitopes. Studies of hydrophilic proteins were undertaken using Kyte-Doolittle and Hopp-Woods methods. Analyses of antigen epitopes helped to reveal the antigen index using the Jameson-Wolf method. All sequences in the six strains of chlamydia micro virus capsid protein Vp3 were highly conserved, with the main differences being between Vp3 protein in Chp1 and the other five strains of the micro virus. The viral strain of Vp3 protein was based mainly on micro-alpha helix structures, and multiple epitopes were noted in highly conserved regions. Vp3 protein was highly conserved structurally, and was an important protein of the chlamydiaphage capsid. Vp3 protein has a complicated molecular structure, highly conserved regions with strong immunogenicity, and has considerable research value.

MRI diagnosis of epithelioid angiomyolipoma of liver / 中华放射学杂志

Objective To retrospectively analyze the MRI findings of epithelioid angiomyolipoma (EAML) of the liver.Methods The MR findings in a series of 8 patients with pathologically proven liver EAML were retrospectively analyzed. Distribution of lesions, signal intensity characteristics, tumor vascularity,feeding arteries and draining veins, fat, hemorrhage, cystic necrosis and pseudocapsule formation were evaluated and correlated with pathology.Results A single lesion was found in each of the 8 patients.All eight lesions showed long T1,long T2 inhomogeneous signal,and high DWI signal. There was only 1 lesion presented with fat,3 lesions presented with hemorrhage. On the dynamic contrastenhanced MRI scan,all 8 lesions manifested as hypervascular with tortuous vasculature in 7 patients.Dilated feeding arteries and draining veins were seen in 5 patients. Conclusion Liver EAML has unique MR imaging features,exhibiting hyperwascular lesions with dialated,tortuous feeding arteries,and draining veins on DCE MRI,which could be helpful in the differential diagnosis of liver EAML.

Monitoring myocardial ischemia by EASI-derived 12-lead electrocardiogram in orthopaedic surgery / 中国医师进修杂志

Objecfive To investigate possibihty of monitoring myocardial isehemia by eontinuous EASI 12-lead ST-segment trend analysis during orthopaedic surgery and find its rules.Methods Three hundred and eleven consecutive patients who underwent orthopaedic surgery were monitored bv continuous EASI 12-lead ST-segment analysis during surgery.Results Among 311 patients 81 patients(26.0%) had myocardial ischemic events.The ischemie incidence of general anesthetics WaS signifieantly higher than local anesthetics(the spinal or epidural anesthetics and nerve-block anesthetics)(38.1%vs 23.0%.P＝ 0.01 5).During ischemie events the patients whose heart rate exceeded 90 beat per minute was 71.6% (58/81).Among the 177 isehemie events,the duration ofless than 5 minutes was 79.7%(141/177).ST-seg- ment deviation ofless than 0.15 mV was 71.2%(126/177).Conclusions During orthopaedic surgery EASt 12-lead electrocardiogram is the optimal approach for monitoring myocardial isehemia.The ischemic incidence of general anesthetics is significantly higher than local anesthetics.The myocardial ischemia events correlates with fast heart rate.The intraoperative myocardial ischemia events are more often transient.In most of these ischemic events ST-segment deviation is not very serious.