1.Earlier application of loading doses of aspirin and clopidogrel decreases rate of recurrent cardiovascular ischemic events for patients undergoing percutaneous coronary intervention.
Fa-kuan TANG ; Le-jian LIN ; Ning HUA ; Hong LU ; Zhi QI ; Xue-zheng TANG
Chinese Medical Journal 2012;125(4):631-638
BACKGROUNDAspirin and clopidogrel resistance plays a significant role in the development of cardiovascular ischemic events for ninety patients undergoing percutaneous coronary intervention. Recent studies have indicated that increasing the dose of antiplatelet drugs maybe a potent method to improve the inhibition of platelet aggregation.
METHODSThrombelastograph (TEG) determinations were used to evaluate the effect of antiplatelet therapy. According to the results, 90 patients were divided into three groups and given different doses of aspirin and clopidogrel. Thirty patients with both an inhibition rate of aspirin > 50% and an inhibition rate of clopidogrel > 50% were defined as the control group. Sixty patients with an inhibition rate for aspirin < 50% and an inhibition rate for clopidogrel < 50% were defined as the resistance group. Patients in resistance group were randomly assigned to be given a routine dose (100 mg aspirin plus 75 mg clopidogrel per day, which we called a resistance plus routine dose group, R + R) and a loading dose (200 mg aspirin and 150 mg clopidogrel per day, which we called resistance plus loading dose group, R + L) of antiplatelet therapy. A 12-month follow-up was observed to examine the change of inhibition rate of antiplatelet therapy and to estimate the relationship between inhibition rate and the occurrence of cardiovascular ischemic events.
RESULTSAfter 6 months of antiplatelet therapy, the inhibition rate of aspirin in the R + L group increased from (31.4 ± 3.7)% to (68.6 ± 7.1)%, which was significantly higher than that in R + R group, (51.9 ± 8.2)% (P < 0.01). The inhibition rate of clopidogrel in the R + L group increased from (22.1 ± 3.8)% to (60.2 ± 7.4)%, which was significantly higher than in the R + R group, (45.9 ± 4.3)% (P < 0.01). The occurrence rates of cardiovascular ischemic events, stent thrombosis, recurrent unstable angina and myocardial infarction in the R + R group were 20%, 36% and 17%, respectively. Occurrence was significantly increased compared with that in the control group, 3%, 10% and 1%, respectively (P < 0.01). In contrast, the occurrence rates in the R + L group (10%, 23% and 6%, respectively) were attenuated compared with those in the R + R group (P < 0.01), although still higher than in the control group (P < 0.01).
CONCLUSIONSAlmost all of the cardiovascular ischemic events occurred in the first six months after percutaneous coronary intervention. According to the result of TEG determinations, earlier application of a loading dose of aspirin and clopidogrel can decrease the rate of recurrent cardiovascular ischemic events.
Adult ; Aged ; Angioplasty, Balloon, Coronary ; adverse effects ; Aspirin ; administration & dosage ; therapeutic use ; Female ; Humans ; Male ; Middle Aged ; Myocardial Ischemia ; prevention & control ; Platelet Aggregation ; drug effects ; Platelet Aggregation Inhibitors ; administration & dosage ; therapeutic use ; Prospective Studies ; Thrombelastography ; Thrombosis ; prevention & control ; Ticlopidine ; analogs & derivatives ; therapeutic use
2.Molecular characterization of embB306 gene in Mycobacterium tuberculosis isolates from tuberculosis patients in Chongqing municipality.
Hui LIN ; Jie LIU ; Lin CHEN ; Kuan-he JING ; Jing SHEN ; Jian ZHAN ; Ya-fei LI ; Ru-fu XU ; Hong-yan XIONG ; Jia CAO
Chinese Journal of Preventive Medicine 2009;43(3):223-226
OBJECTIVETo understand the characteristics of embB gene mutation of Mycobacterium tuberculosis (MTB) isolates from tuberculosis patients in Chongqing, and the value of embB306 as a molecular marker used to diagnose ethambutol (EMB)-resistant MTB strains.
METHODSDirect sequencing was used to analyze the polymorphism of embB mutation in 51 EMB-resistant MTB strains and 50 EMB-sensitive MTB strains. And diagnostic testing was used to evaluate the value of embB306 as a molecular marker of EMB -resistant MTB strains as compared with the traditional sensitivity test.
RESULTSAll 34 of 51 EMB-resistant strains (66.7%) and 3 of 51 EMB-sensitive strains (6%) had had embB306 mutation. The embB306 mutation rate in EMB-resistant strains coming from previously treated case was 87.5%, showing significantly higher than that from new cases (48.1%, P < 0.01); embB306 mutation rate was increased with the number of the resistant drugs; embB306 mutation serving as a marker to diagnose EMB-resistant MTB strains comparing with the traditional sensitivity test, had the rate of sensitivity = 66.7%, specificity = 94.0%, accuracy = 80.2% and Youden index = 60.7%.
CONCLUSIONembB306 mutation should be the main mechanism of MTB resistance to EMB in Chongqing, showing an association with the history of the treated and numbers of the resistant drugs. embB306 mutation should be a good marker to diagnose EMB-resistant MTB strains.
China ; DNA Mutational Analysis ; DNA, Bacterial ; genetics ; Genes, Bacterial ; Humans ; Mutation ; Mycobacterium tuberculosis ; drug effects ; genetics ; isolation & purification ; Pentosyltransferases ; genetics ; Tuberculosis, Multidrug-Resistant ; microbiology
3.Time-course changes of myogenic tone of mesenteric small artery in spontaneously hypertensive rat.
Le-Jian LIN ; Fa-Kuan TANG ; Ning HUA ; Hong LU ; Chun-Xia DI ; Xue-Zheng TANG ; Yu LI
Acta Physiologica Sinica 2012;64(1):62-68
To investigate the time-course changes of myogenic tone in mesenteric small artery (MSA) of spontaneously hypertensive rat (SHR), thirty-two 7-week aged SHR rats were randomly divided into four groups (8, 16, 24, 32 weeks of age), and 32 sex- and age-matched Wistar-Kyoto (WKY) rats were assigned to control groups (CON). On the day of the study, segments of MSA were isolated and then cannulated to the two pipettes. Vascular diameters in response to the increased intraluminal pressure (from 0 mmHg to 150 mmHg, by 25 mmHg steps) of isolated MSA under no-flow conditions were recorded by a Pressure Myograph System both in physiologic salt solution (PSS) (active diameter, Da) and calcium-free PSS (passive diameter, Dp). The myogenic tone was calculated by (Dp - Da)/Dp × 100%. The tail artery pressure and vascular myogenic tone in SHR rats were significantly higher than those of the CON rats. Before 24 weeks, the vascular myogenic tone of MSA in SHR group increased monotonically, but at the end of 32 weeks, the vascular myogenic tone decreased in comparison with that in 24-week group, but was significantly higher than that in CON group. The tail artery pressure in SHR group slowly increased monotonically with increasing weeks of age, and the tail arterial pressure in 32-week group remained significantly higher than that in 24-week group. Vascular myogenic tone may participate in the whole process of hypertension. Early in the development of hypertension, because of the compensatory role of vascular tone, the vascular function has been partially compensated, thus guaranteeing adequate blood supply to organs. Late in the development of hypertension, because of the decompensation of myogenic tone, the vascular function is damaged, leading to the occurrence of severe vascular disease.
Animals
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Blood Pressure
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Hypertension
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physiopathology
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Male
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Mesenteric Arteries
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physiopathology
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Muscle Tonus
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Muscle, Smooth, Vascular
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physiopathology
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Random Allocation
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Rats
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Rats, Inbred SHR
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Rats, Inbred WKY
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Time Factors
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Vasoconstriction
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physiology
4.Clinical study of Milan criteria for liver transplantation.
Zhong-yang SHEN ; Hong ZHENG ; Zheng-lu WANG ; Wen SHEN ; Zhi-jun ZHU ; Yong-lin DENG ; Cheng PAN ; Fu-kuan BAO
Chinese Journal of Surgery 2007;45(23):1615-1618
OBJECTIVETo investigate the value and deficiency of Milan criteria for liver transplantation in patients with hepatocellular carcinoma (HCC).
METHODSBetween December 2001 and November 2005, 125 patients underwent orthotopic liver transplantation ( OLT), who measured up Milan criteria with preoperation computerized tomography (CT) scanning. The results of pre-transplant multidetector CT scan and post-transplant pathology were retrospectively analyzed, and survival rates were compared.
RESULTSPathology examination demonstrated that 97 cases met Milan criteria (77.6%), 26 cases exceeded Milan criteria,and the other 2 cases were diagnosed as nodular cirrhosis. The 1-,2-,3-,4- and 5-year survival rates for those met pre-transplant multidetector CT scanning pre-transplant met Milan criteria vs. those met post-transplant pathology post-transplant criteria were 92.0% vs. 92.8%, 87.2% vs. 90.7%, 86.4% vs. 89.7%, 86.4% vs. 89.7%, and 86.4% vs. 89.7%, respectively. There was no statistic significant difference (P > 0.05). The 1-,2-,3-,4- and 5-year survival rates were 73.0%, 65.4%, 61.5%, 61.5% and 61.5%, for those pathology exceed Milan criteria respectively. The difference between this group and each of the above two were statistically significant (P < 0.05).
CONCLUSIONSThe prognosis of OLT for HCC is good for those met Milan criteria by pre-transplant multidetector CT. Factors leading to poor prognosis such as portal vein tumor thrombi and lymphatic metastasis should be accurately evaluated avoiding for misjudgement.
Adult ; Aged ; Carcinoma, Hepatocellular ; diagnostic imaging ; pathology ; surgery ; Female ; Follow-Up Studies ; Humans ; Liver Neoplasms ; diagnostic imaging ; pathology ; surgery ; Liver Transplantation ; methods ; mortality ; standards ; Male ; Middle Aged ; Retrospective Studies ; Survival Analysis ; Survival Rate ; Tomography, Spiral Computed
5.Analysis of T lymphocyte absolute number and function in the early phase after haploidentical hematopoietic stem cell transplantation.
Li DING ; Lei DONG ; Xiao-Li ZHENG ; Shan-Shan LIN ; Heng ZHU ; Zhi-Dong WANG ; Hong-Ming YAN ; Zi-Kuan GUO ; Heng-Xiang WANG ; Zu-Ze WU
Journal of Experimental Hematology 2013;21(3):702-706
This study was purposed to investigate the immune reconstitution of T-cells in patients who received haploidentical hematopoietic stem cell transplantation (hiHSCT). The peripheral blood was harvested from 22 patients before transplantation and at month 1, 3, 6 after hiHSCT. The proportions of T lymphocyte subtypes including CD3(+), CD4(+), CD8(+), CD45RO(+), and CD45RA(+)CD62L(+) were analyzed by flow cytometry, followed by the calculation of T cell numbers according to the amounts of peripheral blood leukocytes. Adenosine triphosphate (ATP) value in CD4(+) T cells was measured by ImmuKnow method to evaluate the function of lymphocytes. The results showed that the CD3(+) cell absolute value before transplantation was 833.75 ± 359.84/µl, but those values at month 1, 3, 6 after transplantation were 318.87 ± 266.71/µl, 1006.76 ± 512.32/µl and 1296.38 ± 958.77/µl respectively. The CD4(+) cell absolute value before transplantation was 336.99 ± 211.11/µl, but such values at month 1, 3, 6 after transplantation were 45.89 ± 44.21/µl, 142.97 ± 114.85/µl, and 181.78 ± 120.61/µl respectively. The CD8(+) cell absolute value before transplantation was 430.21 ± 159.48/µl, but those values at month 1, 3, 6 after transplantation were 230.44 ± 195.89/µl, 621.64 ± 318.83/µl, and 823.07 ± 633.55/µl respectively. The CD4(+)CD45RO(+) memory T cell absolute value before transplantation was 227.44 ± 73.34/µl, but such values at month 1, 3, 6 after transplantation were 43.47 ± 43.40/µl, 138.69 ± 110.17/µl, 147.73 ± 82.94/µl respectively. The CD8(+)CD45RO(+) memory T cell absolute value before transplantation was 212.70 ± 98.48/µl, but such values at month 1, 3, 6 after transplantation were 184.76 ± 168.65/µl, 445.90 ± 252.50/µl, 519.80 ± 475.53/µl respectively. CD4(+)CD45RA(+)CD62L(+) naive T cell number before transplantation was 68.94 ± 59.74/µl, but such cell numbers at month 1, 3, 6 after transplantation decreased to 2.44 ± 2.93/µl, 3.14 ± 3.48/µl, 23.22 ± 38.38/µl respectively. The CD8(+)CD45RA(+)CD62L(+) naive T cell absolute value before transplantation was 124.82 ± 60.95/µl, but those values at month 1, 3, 6 decreased to 19.37 ± 17.71/µl, 76.63 ± 50.85/µl, and 114.49 ± 174.29/µl respectively. The ATP value in CD4(+) T cells decreased to 210.19 ± 119.37 ng/ml at month 1 after transplantation and increased to 280.62 ± 110.03 ng/ml at month 3, and 357.28 ± 76.18 ng/ml at month 6 after transplantation. It is concluded that CD8(+) memory T cell reconstruction contributes critically to T cell recovery early after hiHSCT, while the thymic output function remains low. However, T cell function recovers to normal range at month 3 after transplantation.
Adolescent
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Adult
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CD8-Positive T-Lymphocytes
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cytology
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Child
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Child, Preschool
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Female
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Haplotypes
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Hematopoietic Stem Cell Transplantation
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Humans
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Immunophenotyping
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Killer Cells, Natural
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immunology
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Lymphocyte Count
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Male
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T-Lymphocyte Subsets
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immunology
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Young Adult
6.Hand-assisted laparoscopic radical gastrectomy: comparison between laparoscopic and open approach.
Yong-kuan CAO ; Li-ye LIU ; Jun ZHOU ; Guo-de LUO ; Yong-hua WANG ; Guo-hu ZHANG ; Pei-hong WANG ; Jia-qing GONG ; Lin ZHANG
Chinese Journal of Gastrointestinal Surgery 2012;15(7):740-742
OBJECTIVETo evaluate the short-term outcomes after hand-assisted laparoscopic radical gastrectomy.
METHODSBetween June 2010 and May 2011, a series of 15 patients underwent hand-assisted laparoscopic gastrectomy(HG), 16 patients underwent laparoscopic gastrectomy(LP), and 11 patients underwent open gastrectomy(OP). Short-term outcomes included operative time, blood loss, lymph nodes harvested, and the length of incision were collected after operation.
RESULTSThe operative time was 150-200 min in HG, 180-220 min in LP, and 150-200 min in OP respectively. The time of laparoscopic procedure was 18-58 and 70-100 min respectively. The average incision length was 6.8 cm in HG, 5.6 cm in LP, and 13.5 cm in OP. The average number of lymph nodes harvested was 17.6, 15.1 and 16.4 respectively. The average estimated blood loss was 228 ml, 278 ml, and 427 ml respectively. The mean length of hospital stay was 9.9, 10.8, and 12.4 d. No anastomotic leakage, bleeding, or gastric paralysis were found. One wound infection case was found in OP.
CONCLUSIONSHand-assisted laparoscopic gastrectomy is in concordance with the standardized treatment protocol for gastric cancer. Lymph node dissection is easier by HG, therefore HG can be an alternative for the radical resection of gastric cancer.
Adult ; Aged ; Female ; Gastrectomy ; methods ; Hand-Assisted Laparoscopy ; methods ; Humans ; Laparotomy ; Male ; Middle Aged ; Stomach Neoplasms ; surgery
7.A multicenter, randomized, open-label study of the safety and effectiveness of pegylated interferon alpha 2b and interferon alpha 2b in treating HBeAg positive chronic hepatitis B patients.
Hong ZHAO ; Chong-wen SI ; Lai WEI ; Mo-bin WAN ; You-kuan YING ; Jin-lin HOU ; Jun-qi NIU
Chinese Journal of Hepatology 2006;14(5):323-326
OBJECTIVETo compare the efficacy and safety of PEG-IFNalpha-2b (Peg-Intron) with IFNalpha-2b (Intron A) in treating HBeAg positive chronic hepatitis B patients.
METHODSTwo hundred thirty chronic hepatitis B (CHB) patients eligible to the following criteria were enrolled into this study: HBsAg and HBeAg(Abbott kit) positive for at least 6 months, serum HBV DNA > or =10(5) copies/ml (real time PCR, LLQ <10(3) copies/ml) and ALT > or =2 x ULN. After 1:1 randomization, the patients received PegIntron (group A: 1.0 microg/kg body weight, SC, once a week) or Intron A (group B: 3 MIU SC, three times a week) for 24 weeks, and followed up for 24 weeks.
RESULTS(1) In groups A and B, respectively, 80.87% and 83.48% were males; their median ages were 31.0 and 32.0 years old; their median body weights were 65.6 and 65.5 kg; mean serum HBV DNA loads were 8.06 log10 and 7.99 log10; their mean ALT values were 4.17 x ULN and 3.77 x ULN. All of the above parameters between the two groups had no statistically significance differences. (2) At the end of treatment and after follow-up, compared to the Intron A group, the PegIntron group showed better response (including complete and partial response rate, HBV DNA undetectable rate, HBeAg seroconversion rate), but the differences of all of them had no statistical significance. The rate of HBeAg loss was higher in patients receiving PegIntron after follow-up (P = 0.0424). (Table 2) (3) PegIntron and Intron A reduced serum HBV DAN persistently during the therapy. Mean reduction at the end of the treatment was much higher in the PegIntron group than in the Intron group (2.22 log10 copies/ml vs 1.66 log10 copies/ml, P = 0.0283). (4) The overall incidence of adverse events (AEs) in the PegIntron group was similar to that of the Intron A group (94.78% vs 95.65%). The AEs associated with PegIntron administration were similar in nature to those with Interon A, such as influenza-like symptoms, fever, fatigue, headache, nausea, etc and the differences of their incidences had no statistical significance.
CONCLUSIONSThe efficacy and safety of PEG-IFNalpha-2b treatment for CHB patients seems to be better than that of IFNalpha-2b; however, further studies are needed to confirm it.
Adolescent ; Adult ; Aged ; Antiviral Agents ; adverse effects ; therapeutic use ; Female ; Hepatitis B e Antigens ; blood ; Hepatitis B, Chronic ; drug therapy ; immunology ; Humans ; Interferon-alpha ; adverse effects ; therapeutic use ; Male ; Middle Aged ; Polyethylene Glycols ; Recombinant Proteins
8.Survey on host animal and molecular epidemiology of hantavirus in Chuxiong prefecture, Yunnan province
Ji-Hua ZHOU ; Hai-Lin ZHANG ; Jing-Lin WANG ; Wei-Hong YANG ; Zhu-Qing MI ; Yun-Zhi ZHANG ; Yu-Zhen ZHANG ; Xian-Yi SONG ; Qiu-Ling HU ; Ying-Kuan DONG ; Wen-Hua PU ; Hai-Mei HU ; Li-Fen GAO ; Qing-Hong YUAN ; Hong-Xiang YA ; Yun FENG
Chinese Journal of Epidemiology 2009;30(3):239-242
Objective To determine the hosts of hantavirus (HV) and its molecular epidemiological characteristics, to provide evidence for prevention and control on hemorrhagic fever with renal syndrome (HFRS). Methods Rodents were captured by a special trap within the residential area. The antigens of HV in lung tissues were detected by direct immuno-fluorescence assay (DFA). Nucleotide sequences of HV were amplified by RT-PCR with HV genotype-specific primer. The amplified genes were then sequenced. Phylogenetic tree were built on nucleotide sequence with Clusta1X 1.83 software. Results 1421 rodents were captured and classified into 8 species of 4 Genera in the epidemic area within 10 counties of Chuxiong prefecture, Yunnan province, between 2005 and 2006. Out of the 1421 rodents, 1056 (74.31%) of them were Rattus norvegicas and 280 (19.70%) belonged to Rattus flavipectus. The antigens of HV were detected by DFA in lung tissues and the total positive rate of HV was 5.15% (53/ 1029). After applying the sequencing nucleotide method to the 53 positive specimens, data showed that 21 specimens were positive and all of them belonged to Seoul type ( 15 samples were from Rattus norvegicus, 4 samples Rattasflavipectas, 2 samples Rattus nitidas). The partial S segments from 12 specimens were sequenced which appeared homologic with R22, L99 and HLD65 from GenBank in relatively high level (87.1%-99.7%). When compared to 76-118 strain of Hantaan type, their homologic degree was only 64.4%-69.1%. Results from Phylogenetic analysis showed that 12 specimens belonged to Seoul type. As for their homology, they were significantly similar to Seoul type and could be tentatively divided into two subtypes S1 and S3. Conclusion It was confirmed that the Seoul type virus, as HFRS' s pathogenetic agent mainly carried by rats, prevailed widely in Chuxiong prefecture. Owing to the local ecological environment, we also noticed the characteristics of different HV subtypes among Seoul type.
9.Inadequate glycaemic control and antidiabetic therapy among inpatients with type 2 diabetes in Guangdong Province of China.
Yan BI ; Jin-hua YAN ; Zhi-hong LIAO ; Yan-bing LI ; Long-yi ZENG ; Kuan-xiao TANG ; Yao-ming XUE ; Hua-zhang YANG ; Lu LI ; De-hong CAI ; Ge WU ; Fan ZHANG ; Shao-da LIN ; Zheng-hua XIAO ; Da-long ZHU ; Jian-ping WENG
Chinese Medical Journal 2008;121(8):677-681
BACKGROUNDDiabetes mellitus has become epidemic in recent years in China. We investigated the prevalence of hyperglycaemia and inadequate glycaemic control among type 2 diabetic inpatients from ten university teaching hospitals in Guangdong Province, China.
METHODSInadequate glycaemic control in diabetic patients was defined as HbA1c = 6.5%. Therapeutic regimens included no-intervention, lifestyle only, oral antiglycemic agents (OA), insulin plus OA (insulin + OA), or insulin only. Antidiabetic managements included monotherapy, double therapy, triple or quadruple therapy.
RESULTSAmong 493 diabetic inpatients with known history, 75% had HbA1c = 6.5%. Inadequate glucose control rates were more frequently seen in patients on insulin + OA regimen (97%) than on OA regimen (71%) (P < 0.001), and more frequent in patients on combination therapy (81% - 96%) than monotherapy (75%) (P < 0.05). Patients on insulin differed significantly from patients on OA by mean HbA1c, glycemic control rate, diabetes duration, microvascular complications, and BMI (P < 0.01).
CONCLUSIONSThis study showed that glycaemic control of type 2 diabetic patients deteriorated for patients who received insulin and initiation time of insulin was usually delayed. It is up to clinicians to move from the traditional stepwise therapy to a more active and early combination antidiabetic therapy to provide better glucose control.
Aged ; China ; epidemiology ; Diabetes Mellitus, Type 2 ; blood ; drug therapy ; Female ; Glycated Hemoglobin A ; analysis ; Humans ; Hyperglycemia ; epidemiology ; Hypoglycemic Agents ; administration & dosage ; Inpatients ; Male ; Middle Aged
10.Nucleophosmin modulates the alleviation of atopic dermatitis caused by the marine-derived compound dihydroaustrasulfone alcohol
Han Chun HUNG ; Chien Wei FENG ; Yen You LIN ; Chun Hong CHEN ; Kuan Hao TSUI ; Wu Fu CHEN ; Chieh Yu PAN ; Jyh Horng SHEU ; Chun Sung SUNG ; Zhi Hong WEN
Experimental & Molecular Medicine 2018;50(2):e446-
Atopic dermatitis (AD) is a chronic inflammatory skin disease, and its prevalence is increasing. AD usually elicits skin barrier dysfunction, dry skin and itching. As the mechanisms of AD remain unknown, there is an urgent need to find effective therapies. Because of the diversity and complexity of marine environments, the discovery of drugs from marine organisms as novel therapeutic agents for human diseases has seen renewed interest. Dihydroaustrasulfone alcohol (WA-25), the synthetic precursor of austrasulfone, which is a natural product isolated from a Formosan soft coral, has been shown to possess many therapeutic effects in our previous studies. However, the detailed mechanisms and therapeutic effects of WA-25 on AD are incompletely understood. We performed in vitro and in vivo studies to examine the effects of WA-25 on AD. We showed that WA-25 blocks inflammation and oxidative stress. Simultaneously, we also found that WA-25 reduces the AD scores and AD-induced transepidermal water loss (TEWL), scratching behavior, and alloknesis. WA-25 is more effective in cases of AD than are the drugs that are currently used clinically. Importantly, we also found that when nucleophosmin (NPM) was inhibited or when its expression was reduced, the anti-inflammatory and anti-AD effects of WA-25 were blocked. These data suggest that NPM plays dual roles in inflammation and AD. Overall, these results suggest that WA-25 is a potential anti-inflammatory and AD therapeutic agent that is modulated by NPM.