1.Therapeutic Observation of Electroacupuncture for Post-operative Intractable Hiccup
Shanghai Journal of Acupuncture and Moxibustion 2015;(8):737-738
ObjectiveTo observe the efficacy of electroacupuncture in treating post-operative intractable hiccup.Method Sixty-seven patients with post-operative intractable hiccup were divided into a treatment group of 34 cases and a control group of 33 cases. The treatment group was intervened by electroacupunctureplus diaphragmatic training, while the control group was by Metoclopramide and Baclofen tablets. The effective rate, recovery time, recovery rate of the first treatment week, and relapse rate within 2 weeks were statistically analyzed.ResultThe total effective rate was 88.2% in the treatment group versus 63.6% in the control group; the mean recovery time was (5.75±3.14)d in the treatment group versus (6.11±3.40)d in the control group. The recovery rate of the first treatment week was 41.2% in the treatment group versus 18.2% in the control group, and the difference was statistically significant (P<0.05). The relapse rate within 2 weeks was 20.0% in the treatment group versus 76.2% in the control group, and the difference was statistically significant (P<0.01).ConclusionElectroacupuncture plus diaphragmatic training is an effective approach in treating post-operative intractable hiccup.
2.Expression of hedgehog signaling pathway in squamous cell carcinoma
Ying LIU ; Chengxin LI ; Yufeng LIU
Chinese Journal of Dermatology 2009;42(2):115-118
Objective To investigate the expression of Ptch-1 and Gli-1, hedgehog pathway-related genes in squamous cell carcinoma (SCC), and the effect of cyclopamine, a specific inhibitor of hedgehog signaling pathway, on the proliferation of a SCC cell line Tca. Methods Skin samples were resected from 42 patients with SCC and 10 normal human controls. Immunohistochemistry and in situ hybridization were employed to study the expression and distribution of Ptch-1 and Gli-1 in these specimens. Tca cells were incubated with cyclopamine (1, 2, 5, 10 μmol/mL) for 48 hours, or cyclopamine (5 μmol/mL) for 1-8 days. The same concentrations of lycopersicin served as the control treatment. Then, MTT assay was performed to detect the proliferation of Tca cells. A fraction of Tca cells were cultured in the presence of 5 μmol/mL cyclopamine for 72 hours followed by BrdU assay for the evaluation of cell growth and proliferation. Results A significant increment was shown in the expression of both Patch-1 and Gli-1 by immunohistochemistry (χ2= 5.656, 6.732, P<0.05, 0.01, respectively) and in situ hybridization (χ2=6.787, 9.600, respectively, both P<0.01) in SCC tissue compared with the control specimens. And both of them were predominantly distributed in the cytoplasm of SCC cells. As MTT assay revealed, cyclopamine notably inhibited the proliferation of Tea cells, and the effect increased with the concentration and action time of cyclopamine. Further more, the percentage of BrdU-positive cells was 26% in cyclopamine-treated Tca cells, significantly higher than that in the blank control cells (77%) and lycopersicin-treated cellls (72%). Conclusions Hedgehog signaling pathway is activated in the lesions of SCC, and inhibition of the pathway may facilitate the treatment of SCC.
3.Treatment of 22 Cases of Chronic Fatigue Syndrome by Puncturing Back-Shu Points
Chengxin LI ; Wei ZHANG ; Guoqi HUANG
Journal of Acupuncture and Tuina Science 2010;08(6):368-370
Objective: To observe the clinical effect of puncturing Back-Shu points in treating chronic fatigue syndrome. Methods: Twenty-two subjects were recruited and treated by puncturing corresponding Back-Shu points based on syndrome differentiation. The short-form General Health Survey (MOSSF GHS) and the Chalder Questionnaires for Fatigue were adopted for evaluating the therapeutic effects. Results: Of the 22 patients, 4 cases showed a marked effect, 11 got effect, 7 got failure, and the total effective rate was 68.2%. Conclusion: Puncturing Back-Shu points is effective in relieving the symptoms of chronic fatigue syndrome and enhancing the patients' health standard.
4.Value of neutiophil gelatinase-associated lipocalin in early diagnosis of acute kidney injury following adult valvular heart surgery
Ying LI ; Shenglin GE ; Chengxin ZHANG
Acta Universitatis Medicinalis Anhui 2014;(2):233-235,236
Objective To explore the value of neutiophil gelatinase-associated lipocalin ( NGAL) taken from blood and urine samples in early diagnosis of acute kidney injury ( AKI) after heart valves replacement surgeries. Meth-ods A total of 56 patients received heart valves replacement surgeries were selected prospectively in this study. NGAL from blood and urine samples and serum creatinine ( Scr) were tested among them at different moments. AKI and non-AKI groups were divided based on Scr levels and the value of NGAL taken from blood and urine sam-ples was estimated in early diagnosis of AKI with receiver operating characteristic curve ( ROC) . Results 16 AKIs were observed among all of them. The peak value of Scr in AKI group was shown between 12 and 24 hours after surgeries, while blood-NGAL was seen high significantly (P<0.05) since 2 hours after surgeries, peak value at 4 hours, for urine-NGAL, peak value was seen at 2 hours. The area of ROC of blood-NGAL 4 hours and urine-NGAL 2 hours after surgeries for AKI diagnosis were 0.891 and 0.934, respectively. The better sensitivity and specificity were shown in both threshold set as 50 μg/L and 110 μg/L. Conclusion Blood-NGAL and urine-NGAL can be used as early diagnostic markers of AKI after heart valves replacement surgeries, whose change is significantly earli-er than that of Scr.
5.Intense pulsed light and red light emitting diode for the treatment of steroid-dependent dermatitis
Jing WANG ; Bin LIU ; Qi LUAN ; Yanting WANG ; Chengxin LI
Chinese Journal of Dermatology 2012;45(3):205-207
Objective To retrospectively review the efficacy and side effects of intense pulsed light (IPL) and red light emitting diode (LED) in the treatment of steroid-dependent dermatitis.Methods Seventy patients with steroid-dependent dermatitis mainly manifesting as facial telangiectasis were treated with IPL for an average of 3.49 sessions with a 4-week interval.The energy density of IPL varied from 20 to 23 J/cm2,pulse width from 2.6 to 5.0 ms,and delay from 15 to 20 ms.Meantime,197 patients with steroid-dependent dermatitis,who mainly presented with facial skin sensitivity,were treated with red LED (633 ± 3 nm wave length) twice a week for an average of 4.23 sessions.The energy density of red LED was 128 J/cm2,and the irradiation lasted 20 minutes at each treatment.The efficacy and adverse reactions were assessed and recorded for each treatment.Results The total response rate was 88.57% for IPL,and 83.76% for red LED.There was a significant difference in the clinical efficacy between triple-pulse and double-pulse IPL (x2 =8.14,P < 0.05).No severe adverse reaction was observed in any of the patients.Conclusion IPL and red LED are both effective in treating steroid-dependent dermatitis.
6.Efficiency and safety of Lightsheer 800 nm diode laser in hair removal
Rui MA ; Jun FU ; Yanchun WANG ; Bin LIU ; Chengxin LI
Chinese Journal of Medical Aesthetics and Cosmetology 2011;17(4):247-249
Objective To evaluate the efficiency and safety of hair removal with Lightsheer 800 nm diode laser. Methods Lightsheer, 800 nm diode laser, was used to remove hairs from different areas, including hairlines, lips, whiskers, armpit, chest, back, limbs and bikinis area, in 432 patients. Results At least twice treatments, the maximum 29 times, were needed to achieve satisfactory results. Total effective rate increased with the treatment times but depended on the different area:63.4 % of hairlines, 67.7 % of lips, 71.9 % of whiskers, 100 % of armpit, 100 % of chest, 100 %of back, 82.6 % of limbs and 100 % of bikinis area, respectively. The adverse effect was observed with temporal hypopigmentation in 4 patients and hyperpigmentation in 9 patients, without any scar formation. Conclusions Lightsheer 800 nm diode laser is a safe and efficient method of laser hair removal.
7.Inhibitory effect of Rab23 on the proliferation of a squamous cell carcinoma cell line Sa3 and its mechanisms
Xilin LIU ; Qiang JIAN ; Ye MIAO ; Min HUANG ; Chengxin LI
Chinese Journal of Dermatology 2014;47(7):499-502
Objective To evaluate the effect of Rab23 on the proliferation of a squamous cell carcinoma cell line Sa3,and to investigate its mechanisms.Methods Cultured Sa3 cells were classified into four groups:normal control group transfected with green fluorescent protein (GFP),Rab23-overexpressing group transfected with a GFP-labelled Rab23-overexpressing plasmid,Rab23-silencing group transfected with a plasmid carrying a Rab23-targeting shRNA,empty vector group transfected with an empty vector.After additional culture for different durations,plate colony formation assay and flow cytometry were performed to evaluate the proliferative activity of Sa3 cells,and Western blot was conducted to detect the expression of Erl/phosphorylated-Erk in Sa3 cells.Statistical analysis was carried out by t test,one-way analysis of variance and Bonferroni's multiple comparison test.Results Stable Sa3 cell lines with overexpression or silencing of Rab23 were established by plasmid construction and lentivirus-mediated transfection.The plate colony formation assay showed that the colony formation rate was significantly lower in the Rab23-overexpressing group than in the normal control group (2.3% ± 0.2% vs.3.6% ± 0.3%,P < 0.05),but higher in the Rab23-silencing group than in the empty vector group (4.1% ± 0.2% vs.1.8% ± 0.03%,P < 0.01).Rab23 overexpression induced G1 phase arrest in Sa3 cells.The proliferation index was significantly decreased in the Rab23-overexpressing group compared with the normal control group (0.581 ± 0.035 vs.0.698 ± 0.018,P < 0.05),but increased in the Rab23-silencing group compared with the empty vector group (0.567 ± 0.015 vs.0.444 ± 0.014,P < 0.01).As Western blot showed,there were no significant changes in the expression of Erk in the Rab23-silencing or-overexpressing group compared with the normal control group,whereas the expression of p-Erk was attenuated in the Rab23-overexpressing group compared with the normal control group,but enhanced in the Rab23-silencing group compared with the empty vector group.Conclusions Rab23 could inhibit the proliferation of Sa3 cells,which may be associated with the Erk pathway.
8.Leptin increases the proliferation of human HaCaT keratinocytes through activation of STAT3 pathway
Ke XUE ; Haiyan LIU ; Qiang JIAN ; Min ZHANG ; Chengxin LI
Chinese Journal of Dermatology 2013;46(12):901-903
Objective To estimate the biological effects of leptin on human HaCaT keratinocytes and explore their molecular mechanisms.Methods Cell counting kit-8 (CCK-8) was used to evaluate the proliferation of cultured HaCaT cells treated with different concentrations of leptin for 24 and 48 hours.Some HaCaT cells were classified into four groups to remain untreated,be treated with leptin (100 μg/L) and piceatannol (a specific inhibitor of STAT3 phosphorylation) alone or in combination for 24 hours,respectively,followed by the evaluation of cell proliferation using CCK-8 kit.Flow cytometry was performed to assess cell cycle of HaCaT cells treated with leptin of 100 μg/L,Western blot to determine the phosphorylation level of Erk1/2 and STAT3 in HaCaT cells treated with leptin of 100 μg/L for different durations.Statistical analysis was done by Student's t-test for unpaired data using GraphPad Prism 5 software.Results The proliferation of HaCaT cells was accelerated to different degrees after treatment with leptin of 50 and 100 μg/L for 24 and 48 hours,and the accelerating effect was in a dose-dependent manner within 24 hours (r =0.9989,P < 0.05).Piceatannol apparently inhibited the promotive effect of leptin on the proliferation of HaCaT cells.There was an obvious elevation in the percentage of cells at S phase ((57.70 ± 5.88)% vs.(42.50 ± 7.55)%,P > 0.05),but a significant decrease in that at G0/G1 phase ((39.70 ± 1.57)% vs.(45.20 ± 1.44)%,P < 0.05),with a significant increase in proliferation index (0.603 ±0.0157 vs.0.564 ± 0.0144,P < 0.05) in HaCaT cells treated with leptin of 100 μg/L for 24 hours compared with the untreated controls.Western blot showed that leptin of 100 μg/L markedly enhanced the phosphorylation level of STAT3 in HaCaT cells.Conclusion Leptin may upregulate the proliferation of HaCaT cells through activation of STAT3 pathway.
9.Effects of KAAD-cyclopamine, a specific inhibitor of hedgehog signaling pathway, on the growth and apoptosis of human squamous cell carcinoma cell line A431
Haiyan LIU ; Yang ZHOU ; Yuping BAI ; Yufeng LIU ; Chengxin LI
Chinese Journal of Dermatology 2008;41(6):387-390
Objective To investigate the in vitro effects of KAAD-cyclopamine, a specific inhibitor of hedgehog signaling pathway, on the growth and apoptosis of human squamous cell carcinoma cell line A431. Methods A431 cells were cultured and treated with KAAD-cyclopamine(0.5, 1, 2, 5 μmol/L).Then, MTT assay was used to detect the proliferation of A431 cells, and light microscopy to observe cell morphology at different time points with a 24-hour interval. Flow cytometry was used to assess cell cycle,and annexin-V/propidium iodide double staining to evaluate the apoptosis in these cells after 48 hours of treatment with KAAD-cyclopamine. Results KAAD-cyclopamine of 0.5, 1, 2 and 5 μmol/L inhibited the proliferation of A431 cells by (7.0±2.3)%, (20.6±2.8)%, (48.3±3.4)% and (61.6±3.3)%, respectively (F = 49.92, P<0.01 ). Furthermore, in the presence of KAAD-cyclopamine of 5 μmol/L, on day 1, 2, 3, 4,and 5 the proliferation of A431 cells was suppressed by (18.5±2.6)%, (56.1±3.7)%, (65.4±2.8)%,(71.2±1.9)% and (75.9±3.0)%, respectively, the difference was significant among these time points(F =16.32, P<0.01 ). Statistical analysis showed that KAAD-cyclopamine downregulated the growth of A431 cells in a dose-and time-dependent manner (r = 0.91, 0.86, P<0.01 and 0.05, respectively). Light microscopy revealed typical morphological changes of cell damage in A431 cells. KAAD-cyclopamine in creased the percentage of cells in G1 phase from (51.8±2.9)% to(76.2±1.8)% (F = 26.34, P<0.01 ), the proportion of hypoploid cells from (1.7±0.3 )% to (8.7±0.2)% (F = 6.32, P<0.05 ), which suggested that KAAD-cyclopamine could arrest A431 cells in G1 phase of the cell cycle. The apoptosis ratio in KAAD-cyclopamine-treated cells was significantly higher than that in the untreated control [ (46.2±2.8)% vs (18.5±3.1 )%, F = 32.01, P<0.01 ]. Tomatidine treatment did not affect the proliferation or apoptosis of A431 cells (both P>0.05).Conclusion KAAD-cyclopamine can markedly suppress the proliferation and induce apoptosis of A431 cells.
10.Leptin regulates keratin 17 expression in HaCaT human keratinocytes
Min ZHANG ; Ye MIAO ; Ke XUE ; Chengxin LI
Chinese Journal of Dermatology 2014;47(6):400-403
Objective To evaluate the effect of leptin on K17 expression in HaCaT human keratinocytes.Methods Some cultured HaCaT cells were treated with leptin (100 ng/ml) or remained untreated for 24 hours followed by the quantification of K17 mRNA expression by real-time PCR and detection of K17 protein expression by Western blot and immunofluorescence staining.To investigate the action mechanism of leptin,some cultured HaCaT cells were divided into several groups to be treated with leptin (100 ng/ml) alone,Piceatannol (an inhibitor of the STAT3 pathway) + leptin (100 ng/ml),PD-98059 (an inhibitor of the Erk1/2 pathway) + leptin (100 ng/ml),respectively for 24 hours,with the cells receiving no treatment as the negative control.Subsequently,the mRNA and protein expressions of K17 were measured by the above methods.Statistical analysis was done by the two-sample ttest.Results The mRNA expression of K17 was significantly higher in HaCaT cells treated with leptin alone than in those remaining untreated (3.086 7 ± 0.186 1 vs.1.000 0 ± 0.000 0,P < 0.01),but significantly downregulated in HaCaT cells treated with Piceatannol + leptin and those with PD-98059 + leptin compared with those treated leptin alone (0.674 1 ± 0.060 0 and 0.855 0 ± 0.390 3 vs.2.242 7 ± 0.188 7,both P < 0.01).The results of Western blot and immunofluorescence staining were in agreement with those of real-time PCR.Conclusions Leptin can induce K17 expression in HaCaT cells,likely by activating the STAT3 and Erk1/2 signaling pathways.