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Meng W, Shen JJ, Liang TY, Wu Q, Wang LB, Huang D, Xu FP, Bai JY, Yang XJ, Shen PC. Gubentongluo decoction alleviates NLRP3 inflammasome in IgAN cell model. All Life 2023. [DOI: 10.1080/26895293.2022.2138560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Affiliation(s)
- Wei Meng
- Department of Clinical Laboratory, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, People’s Republic of China
| | - Jiao-Jiao Shen
- Department of Nephrology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, People’s Republic of China
| | - Ting-Yu Liang
- Department of Pathology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, People’s Republic of China
| | - Qing Wu
- Department of Nephrology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, People’s Republic of China
| | - Luo-Bing Wang
- Department of Nephrology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, People’s Republic of China
| | - Di Huang
- Department of Nephrology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, People’s Republic of China
| | - Fei-Peng Xu
- Department of Nephrology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, People’s Republic of China
| | - Jia-Yuan Bai
- Department of Nephrology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, People’s Republic of China
| | - Xue-Jun Yang
- TCM Institute of Kidney Disease, Shanghai University of Traditional Chinese Medicine, Shanghai, People’s Republic of China
| | - Pei-Cheng Shen
- Department of Nephrology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, People’s Republic of China
- Key Laboratory of Liver and Kidney Diseases, Shanghai University of Traditional Chinese Medicine, Ministry of Education, Shanghai, People’s Republic of China
- Shanghai Key Laboratory of Traditional Chinese Clinical Medicine (20DZ2272200), Shanghai, People’s Republic of China
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Wu Q, Meng W, Shen JJ, Bai JY, Wang LB, Liang TY, Huang D, Shen PC. Guben Tongluo Formula Protects LPS-induced Damage in Lamina Propria B Lymphocytes Through TLR4/MyD88/NF-κB Pathway. Curr Med Sci 2022; 42:991-999. [PMID: 36107305 DOI: 10.1007/s11596-022-2622-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Accepted: 06/24/2022] [Indexed: 11/24/2022]
Abstract
OBJECTIVE The main pathological feature of immunoglobulin A nephropathy (IgAN), an autoimmune kidney disease, is the deposition of IgA immune complexes, accompanied by mesangial cell proliferation and elevated urine protein. The Guben Tongluo formula (GTF) is a traditional Chinese medicine prescription, which has predominant protective effects on IgAN. However, the therapeutic mechanism of the GTF in IgAN remains elusive. The present study aimed to determine the effects of GTF in treating IgAN via regulating the TLR4/MyD88/NF-κB pathway. METHODS In the present study, lamina propria B lymphocytes were treated with different concentrations of lipopolysaccharide (LPS) (0, 1, 5, 10 and 20 ng/mL). Flow cytometry was used to define positive CD86+CD19+ cells. CCK-8 assay was used to examine cell proliferation. RNAi was used to induce TLR4 silencing. qRT-PCR and Western blotting were used to determine gene expression. RESULTS It was found that the LPS dose-dependently increased the content of IgA and galactose-deficient IgA1 (Gd-IgA), the levels of TLR4, Cosmc, MyD88 and phosphorylated (p)-NF-κB, and the ratio of CD86+CD19+ and IgA-producing B cells. However, the TLR4 knockdown reversed the role of LPS. This suggests that TLR4 mediates the effects of LPS on lamina propria B lymphocytes. Furthermore, the GTF could dose-dependently counteract the effects of LPS and TLR4 overexpression on lamina propria B lymphocytes through the TLR4/MyD88/NF-κB pathway. CONCLUSION Collectively, these results demonstrate that the GTF can regulate the TLR4/MyD88/NF-κB pathway to treat IgAN model lamina propria B lymphocytes stimulated by LPS.
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Affiliation(s)
- Qing Wu
- Department of Nephrology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Wei Meng
- Department of Clinical Laboratory, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Jiao-Jiao Shen
- Department of Nursing, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Jia-Yuan Bai
- Department of Nephrology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Luo-Bing Wang
- Department of Nephrology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Ting-Yu Liang
- Department of Pathology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Di Huang
- Department of Nephrology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Pei-Cheng Shen
- Department of Nephrology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.
- Key Laboratory of Liver and Kidney Diseases, Shanghai, 201203, China.
- Key Laboratory of Liver and Kidney Diseases (Shanghai University of Traditional Chinese Medicine), Ministry of Education, Shanghai, 201203, China.
- Shanghai Key Laboratory of Traditional Chinese Clinical Medicine (20DZ2272200), Shanghai, 201203, China.
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Shen PC, Gao ZQ, Li DY, Tang Z. [Effect of sorafenib and prophylactic TACE for prevention of postoperative relapse in patients with liver cancer combined with microvascular invasion]. Zhonghua Gan Zang Bing Za Zhi 2020; 28:416-420. [PMID: 32536058 DOI: 10.3760/cma.j.cn501113-20190917-00338] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To study the effect of sorafenib and prophylactic transarterial chemoembolization (TACE) for prevention of postoperative relapse in patients with liver cancer combined with microvascular invasion (MVI) after using radical hepatectomy. Methods: A retrospective analysis was performed on 137 cases that underwent radical hepatectomy at the First Affiliated Hospital of Zhengzhou University from August 2015 to January 2018. Clinical data of liver cancer patients with MVI were diagnosed by postoperative pathology. General data of the three groups were analyzed. Kaplan-Meier was used to calculate the tumor-free survival rate. COX proportional hazards-model was used to analyze the independent risk factors for postoperative recurrence of liver cancer with MVI recurrence. Counting data was compared by x(2) test between groups, and log-rank test was used to compare the tumor-free survival rates. Results: A, B, and C groups had 49, 36, and 52 cases, respectively. General clinicopathological data of the three groups were not statistically significant. The postoperative tumor-free survival rates at 1-, 2-, and 3-years were 71.4%, 51.0%, 38.8%, 86.1%, 75.0%, 66.7%, and 82.7%, 75.0%, and 59.6% respectively in A, B, and C groups. Multivariate Cox proportional-hazards regression model showed that patients' age (HR = 0.622, P = 0.046), maximum tumor diameter (HR = 1.661, P = 0.033), prophylactic TACE (HR = 0.544, P = 0.019), and postoperative use of sorafenib (HR = 0.419, 0.222, 0.791, P = 0.007) were independent risk factors for postoperative recurrence of liver cancer with MVI. Conclusion: Sorafenib or prophylactic TACE use can significantly reduce the recurrence rate within 3 years after radical surgery in patients with liver cancer who were confirmed to have MVI by postoperative pathology.
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Affiliation(s)
- P C Shen
- Hepatological Surgery Department, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, China
| | - Z Q Gao
- Hepatological Surgery Department, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, China
| | - D Y Li
- Hepatological Surgery Department, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, China
| | - Z Tang
- Hepatological Surgery Department, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, China
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Xin W, Shen PC, Zheng CC, Liu Y, Xu D. [Effect of simplified and traditional Chinese character on accommodative microfluctuation in young adult myopes and emmetropes]. Zhonghua Yan Ke Za Zhi 2018; 54:288-293. [PMID: 29747359 DOI: 10.3760/cma.j.issn.0412-4081.2018.04.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Objective: This study investigates the effect of simplified and traditional Chinese character on accommodative microfluctuation in young adult myopes and emmetropes. Methods: Prospective cohort study. Based on refractive errors, Young adult candidates (18-28 years) were classified into two groups based on their spherical equivalent degrees: emmetropes (n=18), myopes (n=18). Four different reading targets (12pt size simplified and traditional Chinese characters, and 8pt size simplified and traditional Chinese characters) were displayed on computer screen collectively for 135s. The accommodative microfluctuation of the candidates were measured using the free space Grand-Seiko WAM-5500 autorefractor. Results: The results indicated that the type of character (simplified and traditional) had significant influence on accommodative microfluctuation. For myopic candidates, the accommodative microfluctuation for traditional Chinese character was greater than that for simplified Chinese character [traditional Chinese character: (0.35±0.17) D, vs. simplified Chinese character: (0.29±0.11) D, t=2.556, P=0.017], however as for emmetropic candidates, the difference between the accommodative microflucuation for the two types of characters was of no statistical significance [traditional Chinese character: (0.24±0.11) D, vs. simplified Chinese character: (0.24±0.12) D, t=0.004, P=0.996]. There was a difference between emmetropic and myopic candidates in terms of accommodative microfluctuation for traditional Chinese character, myopes had greater accommodative microfluctuation than emmetropes (t=3.140, P=0.02). However the difference between emmetropic and myopic candidates in terms of accommodative microfluctuation for simplified Chinese character was of no statistical significance (t=1.866, P=0.066). Conclusions: The results of the study indicated that myopes were more susceptible than emmetropic in accommodative microfluctuation when reading traditional Chinese character of high spatial frequency. (Chin J Ophthalmol, 2018, 54: 288-293).
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Affiliation(s)
- W Xin
- Northwest Women's and Children's Hospital, Xi'an 710000, China
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Shen PC, Zhang Y, Liu Y, Jiang J, Xu JJ, Lin HL, Xu D. [Study on the difference of binocular accommodative response between atients with intermittent exotropia under different viewing condition]. Zhonghua Yan Ke Za Zhi 2018; 54:55-61. [PMID: 29429288 DOI: 10.3760/cma.j.issn.0412-4081.2018.01.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the accommodative response of patients with intermittent exotropia (IXT) objectively, and study the changes of accommodative response of intermittent exotropia patients when maintaining binocular fusion. Methods: The prospective cohort study was used in this study. Twenty-four patients diagnosed with basic intermittent exotropia who visited the eye hospital of Wenzhou Medical University during October 2016 through January 2017 together with 24 normal volunteers were included, the 48 participants aged from 10 to 27 years old. The participants were divided into the case group and the control group. There were 11 males and 13 females in the case group, and 7 males and 17 females in the control group. The Open-filed autorefractor WAM-5500 (Grand Seiko, Japan) was used to measure the accommodative response of each eye under binocular and monocular viewing conditions at 5 m and 40 cm respectively. During the measurement, patients wore full correction spectacles to achieve distant best-corrected visual acuity of both eyes. The accommodative responses of each eye under binocular and monocular viewing conditions at distance or near between fellow eyes and groups were compared. Results: Under near fixation (40cm) binocular viewing conditions, the accommodative response of the fixating eye (-1.915±0.301)D was different from the deviating eye -1.649(-2.020, -0.304)D in the case group (Z=-3.714, P<0.001). Under near fixation monocular viewing conditions, the accommodative response of the fixating eye (-1.653±0.271)D was also different from the deviating eye -1.565 (-2.031, -0.667)D in the case group (Z=-2.971, P=0.003). During binocular viewing, the asymmetric value of the accommodative response between both eyes of the case group was 0.389(0.102, 1.458)D which was more significant than the normal controls' 0.155(0.009, 0.573)D (Z=-3.505, P<0.001), but during monocular viewing, there was no significant difference between the groups (Z=-1.908, P=0.056). Under near viewing conditions, the variation value of the fixating eyes of the case group was -0.228(-0.796, 0.382)D, which was greater than the variation value -0.086(-0.606, 0.628)D of the right eye of the normal controls, such difference is of statistical significance (Z=-2.279, P=0.023). Under distance viewing conditions, there was no significant difference in the accommodative response between fixating eyes and deviating eyes in case group neither during monocular viewing nor binocular viewing (t=-1.525, -1.729, P>0.05). Besides, the asymmetric values of accommodative response between groups were not significantly different (Z=-1.433, P=0.152. Z=-0.938, P=0.348). Under distance viewing conditions, the changes in accommodative response of each eye during both monocular viewing and binocular viewing were not significantly different between case group and normal controls (Z=-0.041, P=0.967. Z=-1.433, P=0.152). Conclusions: The accommodative responses of the fixating eye and deviating eye of patients with intermittent exotropia were asymmetric under near fixation binocular viewing conditions, and the accommodative response of the deviating eye tends to decrease. Besides, the change of accommodative response of the patients with intermittent exotropia when maintaining binocular fusion is more significant than that of the normal controls. (Chin J Ophthalmol, 2018, 54: 55-61).
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Affiliation(s)
- P C Shen
- School of Ophthalmology & Optometry, Wenzhou Medical University, Wenzhou, 325000, China
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Li WW, Huang D, Shen PC, Wu Q, Sun C, Wang XX, He LQ. [Effects of Gubentongluo Formula on Oxidative Stress Reflected by Expressions of PPARα and L-FABP in Mice with IgA Nephropathy]. Sichuan Da Xue Xue Bao Yi Xue Ban 2017; 48:210-215. [PMID: 28612528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
OBJECTIVES To determine the underlying mechanism of Gubentongluo Formula in the treatment of IgA nephropathy (IgAN). METHODS C57BL/6 mice were randomly divided into four groups: normal group (n =10), IgAN group (n =10), control group (n =10) and treatment group (n =10). Mice in the normal and IgAN groups were intragastricly administered with normal saline for 12 weeks; while those in the control and treatment groups were given fenofibrate [30 mg/(kg!$d) and Gubentongluo Formula [1.67 mL/(g!$d)], respectively. Urinary albumin was detected at week 0 and 12. At week 12, protein expressions of peroxisome proliferstor activated receptor α (PPARα), liver fatty acid-binding proteins (L-FABP), 4-hydroxy-2-nonenal (4-HNE), and hemeoxygenase-1(HO-1) in renal tissues were determined by Western blot; mRNA expressions of PPARα and L-FABP in renal tissues were determined by florescent quantitative reverse transcription-polymerase chain reaction (qRT-PCR). RESULTS At week 12, higher levels of urinary albumin, pathological injuries in glomerular mesangial area, and lower expressions of protein and mRNA of PPARα and L-FABP were found in mice in the IgAN group compared with those in the normal group (P <0.01). The levels of those indicators decreased in those treated with fenofibrate and Gubentongluo Formule, but still higher than the normal controls (P <0.01). The mice treated with Gubentongluo Formula had more significant improvement than those treated with fenofibrate (P <0.05). CONCLUSION [CM(155.3mm]Gubentongluo formula can improve proteinuria and pathological injuries in glomerular mesangial area of IgAN mice, due to reduction of oxidative stress in renal tissues through regulating the expressions of PPARα and L-FABP.
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Affiliation(s)
- Wen-Wen Li
- Department of Nephrology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 200021, China
- Shanghai Tranditional Chinese Medicine-integrated Hospital, Shandhai University of Tranditional Chinese Medicine, Shanghai 200082, China
| | - Di Huang
- Department of Nephrology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 200021, China
| | - Pei-Cheng Shen
- Department of Nephrology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 200021, China
| | - Qing Wu
- Department of Nephrology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 200021, China
| | - Chuan Sun
- Department of Nephrology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 200021, China
| | - Xian-Xian Wang
- Department of Nephrology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 200021, China
| | - Li-Qun He
- Department of Nephrology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 200021, China
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Shen PC, He LQ, Tang Y, Wang Q, Wang W, Li J. Clinicopathological Characteristics and Prognostic Factors of Asymptomatic IgA Nephropathy. J Investig Med 2015. [DOI: 10.2310/jim.0b013e3181d20aa1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Shen PC, He LQ, Yang XJ, Cao HX. Renal Protection of Losartan 50 mg in Normotensive Chinese Patients With Nondiabetic Chronic Kidney Disease. J Investig Med 2015; 60:1041-7. [DOI: 10.2310/jim.0b013e31826741d2] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Shen PC, He LQ, Tang Y, Wang Q, Wang W, Li J. Clinicopathological characteristics and prognostic factors of asymptomatic IgA nephropathy. J Investig Med 2010; 58:560-5. [PMID: 20215916 DOI: 10.231/jim.0b013e3181d20aa1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
AIMS Many patients with immunoglobulin class A (IgA) nephropathy (IgAN) present with asymptomatic urinary abnormalities. The purpose of this study was to observe the clinicopathological characteristics and prognostic factors in asymptomatic IgAN. METHODS Eighty-six asymptomatic IgAN patients (49 males and 37 females) were investigated; 82 of them were followed up during a mean +/- SD period of 66.7 +/- 19.7 months. RESULTS At biopsy, 18 patients (21%) presented with pure hematuria (HU), 29 patients (34%) presented with proteinuria alone (PU), and 39 patients (45%) presented concomitant hematuria and proteinuria with severe pathological lesions. Meanwhile, 16% and 26% had renal insufficiency and hypertension, respectively. Finally, urinary abnormalities of 15% of the patients disappeared, 25% of HU developed proteinuria, 47% of concomitant hematuria and proteinuria, and 32% of PU appeared to have increase of proteinuria, and 14% of PU developed hematuria. Fifteen (24%) of the patients with normal blood pressure initially became hypertensive and 18 (22%) of the patients with normal renal function initially developed renal insufficiency. Twenty-four patients (29%) had doubling of serum creatinine level, and 13 patients (16%) progressed to end-stage renal disease. Prednisone therapy and antihypertensive treatment significantly improved proteinuria and renal function deterioration. Hematuria, hypertension during follow-up, and tubulointerstitial lesions were independent risk factors predictive of the ultimate development of renal progression. CONCLUSIONS The renal outcome of asymptomatic IgAN is guarded. Hematuria, hypertension during follow-up, and tubulointerstitial lesions may be important markers to monitor renal progression in the course.
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Affiliation(s)
- Pei-Cheng Shen
- Department of Nephrology, Traditional Chinese Internal Medicine e-Institute of Shanghai University, ShuGuang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, PR China.
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Shen PC, Lee SN, Liu BT, Chu FH, Wang CH, Wu JS, Lin HH, Cheng WTK. The effect of activation treatments on the development of reconstructed bovine oocytes. Anim Reprod Sci 2007; 106:1-12. [PMID: 17482390 DOI: 10.1016/j.anireprosci.2007.03.019] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2006] [Revised: 03/12/2007] [Accepted: 03/23/2007] [Indexed: 11/20/2022]
Abstract
The purpose of this study was to investigate the effect of different activation treatments on the development of IVM-derived and cloned bovine embryos. The effect of oocyte age (20h versus 24h after IVM) on the blastocyst rate was also investigated. No differences in the percentage of blastocyst development were observed between the oocytes matured for 20 and 24h (15% versus 27%, p>0.05). Reconstructed oocytes activated 4h after fusion (fusion before activation, FBA) had a higher blastocyst rate than those oocytes activated immediately after electrofusion (fusion and activation simultaneously, FAS) (26% versus 5%, p<0.01). Blastocyst rates were significantly greater (p<0.01) for the reconstructed oocytes activated by calcium ionophore (A23187) combined with 6-dimethylaminopurine (6-DMAP) (51.6%) than for those activated with cycloheximide (CHX) plus cytochalasin B (CB) treatment (1h, 8.2%; 5h, 14.3%). However, the blastocyst rates were similar among reconstructed oocytes activated by electric pulses and A23187 (30.5% versus 42.2%) or by A23187 and ionomycin (36.7% versus 33.3%) combined with 6-DMAP, respectively. Blastocysts that developed from reconstructed oocytes activated by A23187 and 6-DMAP resulted in three pregnancies (3/9) and one live birth from 18 embryos transferred to recipient cows. Genotypic analysis of six bovine microsatellite markers by polymerase chain reaction confirmed that the cloned calf was genetically identical to the nuclear donor. In conclusion, reconstructed oocytes that derived from oocytes exposed to activation treatment 4h after electrofusion are more likely to develop to the blastocyst stage. The best treatment to activate reconstructed bovine oocytes in this study was A23187 combined with 6-DMAP.
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Affiliation(s)
- P C Shen
- Department of Animal Science, National Pingtung University of Science and Technology, Pingtung 912, Taiwan, ROC
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Shen PC, Lee SN, Wu JS, Huang JC, Chu FH, Chang CC, Kung JC, Lin HH, Chen LR, Shiau JW, Yen NT, Cheng WTK. The effect of electrical field strength on activation and development of cloned caprine embryos. Anim Reprod Sci 2006; 92:310-20. [PMID: 16159700 DOI: 10.1016/j.anireprosci.2005.05.025] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2004] [Revised: 04/12/2005] [Accepted: 05/10/2005] [Indexed: 10/25/2022]
Abstract
The activation procedure used in nuclear transfer (NT) is one of the critical factors affecting the efficiency of animal cloning. The purpose of this study was to compare the effect of two electrical field strengths (EFS) for activation on the developmental competence of caprine NT embryos reconstructed from ear skin fibroblasts of adult Alpine does. The NT embryos were obtained by transfer of the quiescent fibroblasts at the fourth passage into the enucleated metaphase II (M II) oocytes. Four to five hours after electrical fusion, the NT-embryos were activated by EFS either at 1.67 or at 2.33 kV/cm and immediately incubated in 6-DMAP (2 mM) for 4 h. The cleavage rate of the NT-embryos activated with 2.33 kV/cm was greater than that activated with 1.67 kV/cm after in vitro culture for 18 h (65.6% versus 19.6%, p < 0.001). No pregnancy was found in 14 recipient does after transferring 51 NT embryos at 1-2 cell stages activated with 1.67 kV/cm. In contrast, two of the seven recipients were pregnant and gave birth to three kids after transferring 61 NT embryos at 1-2 cell stages activated by 2.33 kV/cm. The birth weights of three cloned kids were within the normal range of Alpine goats. However, one kid died 1h after birth while the remaining two are still healthy. DNA analysis by polymerase chain reaction (single-strand conformation polymorphism, SSCP) confirmed that the three kids were genetically identical to the nuclear donor.
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Affiliation(s)
- P C Shen
- Department of Animal Science, National Pingtung University of Science and Technology, Pingtung 912, Taiwan, ROC
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Kuo YT, Jaw TS, Wang CK, Lee LW, Shen PC, Liu GC. Diagnostic efficacy of non-breath-hold magnetic resonance cholangiopancreatography. J Formos Med Assoc 1999; 98:97-103. [PMID: 10083764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023] Open
Abstract
Magnetic resonance cholangiopancreatography (MRCP) is an emerging imaging technique for direct visualization of biliary and pancreatic ducts without the need for an invasive procedure, ionizing radiation, or iodine contrast media administration. The purpose of this study was to evaluate the efficacy of non-breath-hold MRCP in depicting normal and diseased biliary and pancreatic ducts. A retrospective analysis of 162 patients who underwent MRCP was performed, and a comparison between MRCP and direct cholangiography was made. The overall accuracy of MRCP in diagnosing malignant and benign pancreaticobiliary diseases was also calculated. MRCP depicted more than three hepatic segments in 99% of patients with dilated intrahepatic ducts and in 63% of patients with nondilated intrahepatic ducts. MRCP demonstrated the main hepatic duct, gallbladder, and cystic duct in 100%, 89%, and 72% of patients, respectively. The dilated extrahepatic duct, nondilated extrahepatic duct, dilated pancreatic duct, and nondilated pancreatic duct were visualized in 100%, 98%, 95%, and 77% of patients, respectively. The accuracy of MRCP in diagnosing hepatolithiasis, cholecystolithiasis, and choledocholithiasis was 96%, 97%, and 96%, respectively. The obstruction levels and characteristics determined by MRCP were in agreement with those determined from direct cholangiography in 98% of malignant obstructions and 89% of benign obstructions. The overall accuracy of a combination of MRCP and conventional magnetic resonance imaging in diagnosing pancreaticobiliary diseases was 81% for malignant diseases, 86% for benign diseases, and 82% for stone diseases. We conclude that non-breath-hold MRCP can reliably depict normal and diseased pancreaticobiliary ducts except for cystic ducts and nondilated pancreatic ducts.
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Affiliation(s)
- Y T Kuo
- Department of Radiology, Kaohsiung Medical College, Taiwan
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