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OBJECTIVE: To observe the time-effect of stimulation of the embedded poly glycolide-co-lactide (PGLA) suture in Sanyinjiao (SP6) area in normal human body, so as to provide an experimental evidence for clinical application of micro-invasion suture-embedding at an appropriate interval. METHODS: A total of 8 healthy volunteer students (3 boys and 5 girls, ranging in age from 24 to 27 years) were recruited in the present study. A piece of sterilized PGLA suture was implanted into the left SP6 using minimally invasive surgery after strict local skin disinfection. The fat-suppression T2 weighted magnetic resonance images (MRI, displaying local lesion after eliminating interference of fat tissue signals), and T2 mapping 8-echo train images were acquired before and 8 h, 3, 7, 10 and 14 days after PGLA suture embedment by using a MR imaging system. After transformation of the T2-mapping 8-echo train images into T2-mapping images by using a relevant software, the T2 values (meaning the relaxation time of the local muscle) of the left SP6 were measured, followed by analysis of the signal intensity of T2 weighted fat-suppression images and T2 values at different time-points. RESULTS: Before the suture embedding, no abnormal signals were found in the signal intensity of T2 weighted fat-suppression images. After PGLA suture embedment, the local signal intensity of T2WI fat-suppression images was relatively increased at the 8th h, and on day 3, 7, 10 and 14 relevant to pre-embedment, but gradually atte-nuated on day 10 and 14. The T2 values were significantly increased at the 5 time-points of post-embedment (all P0.05), and being markedly lowered on day 14 relevant to day 7 (P<0.01) in spite of being still markedly higher than that of pre-embedding (P<0.01). CONCLUSION: The signal intensity of T2 weighted fat-suppression images and T2 values acquired from PGLA-suture-embedded SP6 acupoint area in healthy subjects may keep at least for 2 weeks, suggesting that the stimulating reaction of suture-embedment persists more than 14 days. Hence, when a micro-invasion embedding with PGLA suture performed, the interval of two weeks would be appropriate.
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OBJECTIVE@#To explore the objectivity and time-effect of stimulating effect at acupoint with PGLA in the healthy person, and to provide a basis for the rational interval of minimally invasive embedding of PGLA.@*METHODS@#Before embedding, 8 h, 3rd, 7th, 10th, 14th day after embedding, medical imaging magnetic resonance imaging (MRI) scanning technique was used to collect local T2WI pressure-lowering and T2-Mapping 8 echoes sequence image of left Zusanli (ST 36) in 8 cases of healthy person. The T2-Mapping 8 echoes sequence image was generated by the relevant software to the T2-Mapping image and the local T2 value was measured. The characteristics of local T2WI pressure-fat image signal intensity and the change of T2 value at left Zusanli (ST 36) with minimally invasive embedding with PGLA were observed and analyzed.@*RESULTS@#①There was no abnormal signal on the T2WI pressure-fat image on the left Zusanli (ST 36) point before the embedding. The high-signal was seen on the local T2WI pressure-fat image at each time point after embedding, there was no significant difference in local signal intensity between 8 h, 3rd and 7th day after embedding. The local signal intensity decreased on the 10th day after embedding, and the local signal intensity decreased significantly on the 14th day after embedding.②The T2 value at each time point after embedding increased significantly compared with that before embedding (all 0.05); there was no significant difference between the T2 value on the 7th and the 10th day after embedding (>0.05)，the T2 value on the 14th day after embedding was significantly lower than that on the 7th day after embedding (<0.01).@*CONCLUSION@#It has a stimulating effect on the local acupoints with minimally invasive embedding with PGLA in the healthy person, and the stimulating effect has certain time-effect. The effective stimulation time is about 2 weeks. The rational interval period for the minimally invasive embedding with the PGLA of the same specification type should be about 2 weeks.
Subject(s)
Acupuncture Points , Antimicrobial Cationic Peptides , Magnetic Resonance ImagingABSTRACT
<p><b>OBJECTIVE</b>To in vivo dynamically observe the time-effect characteristic of local stimulating effect on acupoints after micro-invasion embedding, which could provide references for the interval period of micro-invasion embedding.</p><p><b>METHODS</b>With magnetic resonance imaging (MRI) technique, the local T2WI fat-suppression images and T2 Mapping 8-echo sequence images were collected at multiple time points from 8 healthy subjects who received embedding at left Sanyinjiao (SP 6).After the 8-echo sequence images were transformed into T2 Mapping images by using software FuncTool, the T2 average value of embedding area was measured, and the changes of local signal strength of T2WI fat-suppression images and T2 average value along with time after embedding at left Sanyinjiao (SP 6)were analyzed.</p><p><b>RESULTS</b>Compared before embedding, the signal strength of local T2WI fat-suppression images and the T2 average value began to increase 8 h after being embedded(<0.01); the signal strength of T2WI fat-suppression images and the T2 average value were significantly increased 3 d and 7 d after being embedded(all<0.01);the signal strength of local T2WI fat-suppression images and the T2 average value 14 d after being embedded were lower than those at previous 2 time points, but higher than those before embedding(both<0.01); 21 d, 28 d and 35 d after embedding, the signal strength of local T2WI fat-suppression images and the T2 average value were similar to those before treatment (all>0.05).</p><p><b>CONCLUSIONS</b>After micro-invasion embedding at Sanyinjiao (SP 6), the stimulation effect period on acupoint is approximately 21 days.When applying micro-invasion embedding under similar condition at acupoints which has similar structure as Sanyinjiao (SP 6), the interval period of embedding could consider 21 days as a reference.</p>
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Introduction In 19th century, researchers proved at biochemical level the healing properties of bee products such as bee venom, honey, royal jelly, pollen, propolis and wax. The object of our research is the Apis cerena’s venom properties1-2. Asiatic honey bee or Apis cerana is small honey are small honey bees of southern and southeastern Asia, such as China, India, Japan, Malaysia, Nepal, Bangladesh and Papua New Guinea3. This species is also known as the Himalayan hive honeybee. This species is the sister species of Apis koschevnikovi, and both are in the same sub¬genus as the Western (European) honey bee, Apis mellifera4. Goal The purpose of our research is to study property and potential of bee venom and its effect on immune system. Heal¬ing property of Apis cerana was high. This study proves that bee venom therapy stimulates immunity. Materialis and Methods The research was conducted at the Scientific Research Center of “Monos” Institute of Traditional Medicine and in biochemical Laboratory of “Khuljborjigon” Clinic. For the experiment, we used 23 perfectly healthy mice of same sex and size which meets standards of laboratory testing. We put a bee sting to 0.5 ml of 10% red blood cell (RBC) solution and measured time of heamolysis to de¬fine bee venom potential/capability by Shkenderov S., Ivanov Ts., (1985) method. Following Erne (1963), Kovalev I.E.,(1976), Petrov’s (1980) methodology of studying effects on immune system, we have stung bee venom to 23 mice on the acupuncture point of hind paw every other day in total 3 times. On third day of the experiment, we in¬jected into vein 2ml of 10 % sheep’s RBC to stimulate the immunity. On the fifth day, we defined weight of pancreas, number of pancreatic cells, pancreatic index, and haemagglutination titre. Results Potential of bee venom is determined by speed of heamolysis when bee sting is placed in the 0.5 ml of 10% RBC solution. If we place one bee sting into 1ml of RBC solution then the speed of heamolysis is 46 seconds, when two stings are place speed is 38 seconds and when 3 stings placed then time is 30. Compare to usual speed of heamolysis which is 60 seconds, change in time depending on the number of bee stings proves the effectiveness of bee venom (Table 1). In figure 3, the number of spleen cells of control group’s was 142.71±55.51*106/ml. this is 1.2 times lower compare to normal group which is 172.67±135.5*106/ml. BVT group’s number of spleen cells was 329.78±187.78*106/ml and 1.61 times bigger than in control group. In comparison to control group, haemagglutina¬tion titre of BVT group was 1.13 times higher (BVT group 54.86±19.95%; control group 50±8.83%, p<0.05) and this indicates that BV has immunity stimulating effect. Conclusions From our experiment we can conclude the following 1. Apis mellifera’s bee venom has high treating effect. 2. Bee venom therapy has immunity stimulating activity.
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Fibrinogen is converted into fibrin by the action of thrombin under presence of calcium. In addition to its hemostatic effect, fibrin coagulum has tissue adhesive effect and fibroblast stimulating effect in the healing process. Perforating wounds about 1mm X 3mm in size were made in the center of rabbit corneas, and then were treated with fibrin glue. Simple full-thickness lacerations were also made in the central cornea of the other eye without any treatment as a control group. These eyes were enucleated after various periods of interval and the wound sites were studied with light and electron microscope. Tissue defect of perforated cornea was closed well by fibrin glue and active proliferation of the fibroblasts was seen near the glue. From these results, fibrin glue may be useful in the treatment of human corneal perforation and it will be used for the other ocular surgery.
Subject(s)
Humans , Adhesives , Calcium , Cornea , Corneal Perforation , Fibrin Tissue Adhesive , Fibrin , Fibrinogen , Fibroblasts , Lacerations , Thrombin , Tissue Adhesives , Wounds and InjuriesABSTRACT
Fibrinogen is converted into fibrin by the action of thrombin under presence of calcium. In addition to its hemostatic effect, fibrin coagulum has tissue adhesive effect and fibroblast stimulating effect in the healing process. Perforating wounds about 1mm X 3mm in size were made in the center of rabbit corneas, and then were treated with fibrin glue. Simple full-thickness lacerations were also made in the central cornea of the other eye without any treatment as a control group. These eyes were enucleated after various periods of interval and the wound sites were studied with light and electron microscope. Tissue defect of perforated cornea was closed well by fibrin glue and active proliferation of the fibroblasts was seen near the glue. From these results, fibrin glue may be useful in the treatment of human corneal perforation and it will be used for the other ocular surgery.