1.Isobolographic analysis of hypnotic interaction between propofol and ketamine
Chinese Journal of Anesthesiology 1996;0(07):-
Objective To study the hypnotic interaction between propofol and ketamine with isobologram. Methods Seventy-five ASA Ⅰ - Ⅱ patients (35 male, 40 female) aged 20-50 yr, weighing 40-80 kg, undergoing elective upper abdominal surgery were randomly divided into three equal groups of 25 patients : propofol group (P); ketamine group (K) and propofol-ketamine combination group (P/K), Each group was further divided into 5 subgroups. Propofol 0.8, 1.0, 1.25, 1.56 or 1.95 mg ? kg-1 was given in 5 propofol subgroups (P1-5 ) respectively. Ketamine 0.32, 0.40, 0.50, 0.63 or 0.78 mg?kg-1 was given in 5 ketamine subgroups (K1-5 ) respectively. Propofol /ketamine 0.45/0.15, 0.60/0.20, 0.80/0.29, 1.05/0.35 or 1.41/0.47 mg?kg-1 were given in the 5 propofol-ketamine combination subgroups (P/K1-5 ) respectively. Two minutes after drug administration the patients were asked to open their eyes. Failure to open eyes was taken as the start-point of hypnotic effect. If the patient failed to respond to verbal order twice consecutively, the patient was considered to be in the hypnotic state. When the patient in hypnotic state failed to respond to electric stimulation of certain intensity, the patient was considered to be in anesthetic state. ED50s of propofol, ketamine and P/K combination for hypnotic and anesthetic effect were calculated. Isobologram was drawn. ED50 and 95 % confidence limit of ketamine were plotted on the abscissa and of propofol on the ordinate. The ED50 s of the two drugs were connected. If the ED50 of P/K combination was located on the connecting line, the two drugs are additive, on the left side of the connecting line synergistic, on the right side of the connecting line antagonistic. SBP, DBP, HR, SpO2 and BIS were continuously monitored before, during and after drug administration. Results The ED50 s for hypnotic and anesthetic effect were : 1.15 mg? kg-1 and 1.59 mg? kg-1 in group P; 0.40 mg? kg-1 and 0.72 mg? kg-1 in ketamine group; 0.65/0.22 mg?kg-1 and 1.19/0.40 mg?kg-1 in P/K group. The deviation of the location of ED50 of P/K combination from the connecting line was statistically insignificant. There was no significant change in SBP and DBF after administration of drugs in P/K group. Conclusion The hypnotic and anesthetic interaction between propofol and ketamine was additive. In terms of hemodynamic stability, P/K combination was the best among the three groups.
3.Clinical value of blastocyst transfer in vitrified-thawed cycles
Jingjing CHEN ; Hong JIANG ; Pan LI
Chongqing Medicine 2014;(34):4610-4612
Objective To evaluate the clinical value of frozen-thawed blastocyst transfer and the blastocyst derived from frozen-thawed cleavage stage embryo transfer.Methods The data of 5 1 8 cycles in reproductive medicine center of the hospital from Sep-tember 2012 to August 2013 were analyzed retrospectively.According to the frozen-embryos type,all patients were divided into three groups,group A:frozen-thawed blastocyst transfer,129 cycles;group B:blastocysts derived from frozen-thawed cleavage stage embryos transfer,123 cycles;group C:frozen-thawed cleavage embryos transfer,266 cycles.The clinical outcomes of all groups were compared with each other,and the rates of blastocyst formation and cancellation were compared between group A and group B.Re-sults The rates of biochemical pregnancy,clinical pregnancy and embryo implantation in group A(70.5%,61.2%,42.3%)and group B(67.5%,58.2%,40.2%)were significantly higher than group C(53.0%,42.5%,23.1%)(P<0.05);there were no signif-icant differences in the rates of early abortion,ectopic pregnancy,multiple pregnancy among three groups(P>0.05);there were no significant differences in the blastocyst formation rates of the high quality cleavage embryos at D3 in fresh cycles and the frozen-thawed cleavage embryos(62.5%vs.57.7%)(P>0.05)and those two groups were both significantly higher than the poor quality cleavage embryos at D3 in fresh cycles(20.3%)(P<0.05).Conclusion Blastocyst transfer in vitrified-thawed cycles could get rel-atively satisfactory clinical outcomes.There are higher blastocyst formation rate and better clinical outcomes of transfer blastocyst derived from frozen-thawed cleavage embryo.
4.A clinicopathological study of Alport syndrome and detection of type Ⅳ collagen chains in Alport patients
Nan CHEN ; Xiaoxia PAN ; Hong REN
Chinese Journal of Nephrology 1994;0(04):-
Objective To analyse the clinicopathological changes of Alport syndrome (AS) and to detect the deposition of type Ⅳ collagen within basement membrane of Alport patients. Methods Fourteen patients with AS (12 families) hospitalized from 1990. 1 to 1996. 6 were investigated. Eleven were male and 3 female (mean age 29. 4 years). Results Microscopic hematuria was found in 13, with recurrent gross hematuria in 7. All had proteinuria. Three patients presented nephrotic syndrome. Progressive renal failure occured in 10 of 11 male(11 - 39 years) and 1 female (40 years). Six patients were treated with hemodialysis, two of them with transplantation. Sensorineural deafness was observed in 9 patients particularly high frequency sound. Anterior lenticonus were presented in 2. It showed heterogeneitic, 50% transmitted as X-linked dominant(XD) trait. In 7 renal biopsies, the findings by light microscopy mostly revealed focal and segmental sclerosis glomerulonephritis (4/7). The results of immunofluorescenc e (IF) were ne gatt ye in 4. Ultrastructural studies showed variable thickening, thinning of glomerular basement membrane (GBM) in 7 specimens with lamellation and basket-weaving of GBM in 1. Using the iIF technique, the ?3, 4, 5 (Ⅳ) chains were absent within both GBM and EBM of 4 male XD-AS patients. Conclusions AS is not a rare hereditary disease characterized by hematuria, proteinuria and progressive renal failure with sensorineural deafness and ocular lesions. Type Ⅳ collagen within Alpori patients' basement membrane is abnormal and iIF study of type Ⅳ collagen chains distribution is useful to confirm the diagnosis of AS.
5.The analysis of clinical outcome of frozen-thawing embryo transfer after whole embryo cryopreservation
Pan LI ; Hong JIANG ; Jingjing CHEN
The Journal of Practical Medicine 2014;(16):2580-2582
Objective To analyze the outcomes of frozen-thawed blastocyst and cleavage embryo transfer after whole embryos cryopreservation. Methods The data of 489 IVF-ET cycles in reproductive medicine center of our hospital from September 2012 to August 2013 were analyzed retrospectively. Whole embryos cryopreservation in 214 patients were carried out with vitrification method and served as group A , 275 cycles performed fresh embryo transfer were served as group B. Then group A and group B were subdivided into group A1 (83 cycles),group A2 (131 cycles), group B1 (120 cycles)and group B2 (155 cycles)according to blastocyst transfer or cleavage-stage embryo transfer. The clinical outcomes of all groups were compared each other. Results The pregnancy rate and embryo implantation rate in group A1 were significantly higher(71.1% ,53.0%)than those in group A2, B1 and B2 (A2 group: 57.3%, 34.0%, B1group: 55.0%,42.1%, B2 group: 52.9%, 32.7%,respectively)(P<0.05). The embryo implantation rate in group B1 were higher than those in group B2 (P < 0.05). Conclusion F-ET after whole embryos freezing could significantly improve the embryo utilization rate and clinical pregnancy rate. Frozen-thawed blastocyst transfer could get better clinical outcomes than frozen-thawed cleavage-stage embryo transfer.
6.Research progress concerning knee-joint subchondral bone bruises
Xiaohua PAN ; Zhibin CHEN ; Jinsong HONG
Chinese Journal of Orthopaedic Trauma 2016;18(2):179-184
Recently,wide application of MRI in clinic accelerates researches into the etiology,diagnosis,treatment and prognosis of bone bruises.MRI manifestations of bone bruises include trabecular microfracture associated with hemorrhage,oedema of subchondral bone because of direct or indirect traumatic force and focal abnormalities in subchondral bone of the knee.This condition is also known as occult injury of the knee,because it is likely to be overlooked or misdiagnosed in hospital due to its diagnostic difficulty by plain radiographs and CT.If timely intervention is not given,it will be accompanied by chronic pain which seriously affects the daily life of the patients,even resulting in early degeneration.This article discusses the current research on bone bruises of the knee.
7.Factors determining growth response in recombinant growth hormone treatment of growth hormone deficient children.
Si-nian PAN ; Min-lian DU ; Hong-shan CHEN
Chinese Journal of Pediatrics 2006;44(7):544-545
Adolescent
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Age Factors
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Body Height
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drug effects
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Body Mass Index
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Child
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Child, Preschool
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Drug Administration Schedule
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Female
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Follow-Up Studies
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Growth Disorders
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drug therapy
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Human Growth Hormone
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administration & dosage
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therapeutic use
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Humans
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Male
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Recombinant Proteins
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therapeutic use
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Time Factors
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Treatment Outcome
8.Study on the type diagnosis for hospital culture of a tertiary hospital
Ping CHEN ; Yadong WANG ; Hong CAI ; Yuesong PAN
Chinese Journal of Hospital Administration 2009;25(7):495-498
Objective To learn the current culture of the hospital and identify its future development pathway. Methods The current culture types of the hospital are evenly distributed among the four quadrants. Results These types are found to be identically distributed among the tribe type, temporary system type, hierarchy type and market-oriented type of culture. Among these four type, the hierarchy type and market-oriented type score higher (27 scores both) and take the lead. Conclusions Hospitals are expected to enhance its exchange and communication with the employees, and head to its desired direction of a hospital culture type.
9.Progress in the study of tubulin inhibitors.
Hai SHANG ; Li PAN ; Shu YANG ; Hong CHEN ; Maosheng CHENG
Acta Pharmaceutica Sinica 2010;45(9):1078-88
Microtubule is one of the key components of the cytoskeleton and plays an important role in the maintenance of cell shape and the process of signal transduction and mitosis. Due to the extreme importance of microtubule in the process of mitosis, tubulin becomes one of the most important targets for development of new anticancer drugs and tubulin inhibitors are used for the treatment of cancer nowadays. These inhibitors have antitumor activity by inhibiting or promoting the assembly of tubulin to microtubules and interfering the process of cell mitosis. This review summarized the research progress of the tubulin inhibitors, especially the introduction of the tubulin inhibitors of pharmacological activities and the progress of clinical research. Also, the development trend of these inhibitors is discussed.
10.Study on CLCNKB gene mutation in a late-onset Chinese patient with classic Bartter syndrome
Ying YU ; Xiaoxia PAN ; Hong REN ; Weiming WANG ; Nan CHEN
Chinese Journal of Nephrology 2010;26(8):598-602
Objective To investigate the underlying mutation in a late-onset Chinese patient with classic Bartter syndrome. Methods The mutation analysis of CLCNKB gene was performed by the PCR direct sequencing. The patient's parents and siblings were studied as well. Fifty normal volunteers were analyzed as control group. Results The heterozygous deletion mutation cDNA 753delG and heterozygous missense mutation G433E were detected in the patient. Her father was found to carry heterozygous G433E and her mother to carry cDNA 753delG mutation respectively. Her brother carried heterozygous G433E and her sister was normal. Conclusions Two mutations of the CLCNKB gene in this Chinese patient with late-onset classic Bartter syndrome are identified. The cDNA 753delG mutation has not been reported previously.