Objective To study the effect of the human umbilical cord blood on the content of trace elements in whole blood during fracture healing in rabbits and to explore the mechanism of promoting fracture healing. Methods The right tibial fracture model was made in 63 white New Zealand rabbits (aged, 4-5 months; weighing, 2.0-2.5 kg). The fracture site was treated with 3 mL human umbilical cord blood (group A, n=21) and 3 mL normal saline (group B, n=21) at 3 and 8 days after operation, and was not treated as a control (group C, n=21). At 1, 2, 3, 4, 5, and 6 weeks after operation, the X-ray and histological observations were done; the contents of zinc, copper, magnesium, ferrum, calcium, and phosphorus were detected. Results X-ray observation showed that the fracture healing speed of group A was significantly faster than that of groups B and C; the fracture healing X-ray score of group A was significantly higher than that of groups B and C at 2-6 weeks (P lt; 0.05). The histological observation indicated that new trabeculae and osteoid of group A were significantly more than those of groups B and C; at 2-5 weeks, the histological score of group A was significantly higher than that of groups B and C (P lt; 0.05); at 6 weeks, the score of group A was significantly higher than that of group B (P lt; 0.05), but no significant difference was found between groups A and C (P gt; 0.05). Changes trend of the trace elements in 3 groups after operation was basically consistent. The content of copper first decreased and then gradually increased; the contents of ferrum, zinc, and magnesium at different time points decreased, but were basically stable; the content of calcium first increased and then decreased; the content of phosphorus first decreased and then increased. The contents of copper, zinc, magnesium, ferrum, calcium, and phosphorus in group A were significantly higher than those in groups B and C at different time points (P lt; 0.05), but there was no significant difference between groups B and C (P gt; 0.05). Conclusion Injection of the human umbilical cord blood at the fracture end of rabbits can significantly slow down the loss of trace elements in whole blood, ensure the contents of necessary trace elements during fracture healing, which may be one of the mechanisms of the umbilical cord blood promoting fracture healing.
ObjectiveTo understand the function of trace element and amino acids detection in early diagnosis of breast cancer, and explore the correlation between plasma amino acid and trace element changes. MethodsFifty-five patients with breast cancer and 50 normal controls were included in our study from May 2012 to June 2013. Trace elements were detected by atomic absorption spectrophotometer, and the level of amino acids was detected by Hitachi L-8900 amino acids analyzer. Then, we analyzed the correlation between the two indexes. ResultsCompared with the normal controls, breast cancer patients had a higher level of Cu and Fe (P<0.05), and a lower level of Zn (P<0.05). Seven kinds of amino acids had significant changes (P<0.05), including three kinds of increased amino acids, and four reduced. Amino acids and trace element correlation analysis showed that Mg was negatively correlated with Leu, Tyr, Lys, and His; and Ca was negatively correlated with Lys and His. ConclusionThere are many kinds of changes of plasma amino acids and trace elements in breast cancer patients. Serum trace element and amino acids detection in patients with breast cancer are helpful in the severity judgment and regimen design.
In order to study the effect of Chinese traditional medicine, "Bone Growth Fluid", on bone formation in bone lengthening, the limb lengthening model was made on goat to observe bone formation in the distracted area, and the content of the trace elements was determined. The bone-lengthening operation was carried out on the upper metaphysis of left tibia. The animals were divided into two groups following operation. From 2nd day afteroperation, "Bone Growth Fluid", 10 ml per kilogram body weight, was given daily to goats in the experimental group, and same amount of normal saline was given to goats in another group as control. The results showed-that new bone formation and bone remodeling in the experimental group appeared earlier than that in the control group, and the content of the trace elements was also improved. So Chinese Traditional medicine, "Bone Growth Fluid", could accelerate the accumulation of the trace elements in callus on the distracted sites and it might play some role in the promotion of osteogenesis and bone remodeling in bone lengthening.
OBJECTIVE: To investigate the effects of trace elements on the metabolism of extracellular matrix and explore the physiological and pathological mechanism of trauma. METHODS: Based on the experimental and clinical data, it was studied that the action of trace elements in the metabolism of extracellular matrix in trauma repairing. RESULTS: During wound healing, the trace elements were the components of many kinds of enzymes, carriers and proteins. They took part in the synthesis of hormones and vitamins as well as the transmission of information system. They activated many different kinds of enzymes and regulate the levels of free radicals. The trace elements had the complicated effects on the synthesis, decompose, deposition and reconstruction of collagen and other extracellular matrix. CONCLUSION: The trace elements play an important role in regulating the metabolism of extracellular matrix.
Objective To investigate the relationship between trace elements in synovial fluid and cartilage and severity of knee osteoarthritis (KOA). MethodsPatients with KOA who underwent knee arthrocentesis or total knee arthroplasty (TKA) were recruited based on inclusion criteria between June 2021 and December 2021. Synovial fluid samples were obtained during knee arthrocentesis and TKA, and participants were divided into the mild group (grading Ⅰ/Ⅱ) and the severe group (grading Ⅲ/Ⅳ) according to the Kellgren-Lawrence grading (K-L grading). Cartilage samples with different degrees of wear were collected during the TKA from the same patient and were divided into mild wear (0-1 point) and severe wear (2-4 points) groups based on the Pelletier score. The contents of copper (Cu), zinc (Zn), and manganese (Mn) in synovial fluid and cartilage were evaluated by inductively coupled plasma mass spectrometry, and the differences between groups were compared. ResultsA total of 33 synovial fluid samples were collected, including 19 specimens from 14 patients who underwent knee arthrocentesis of mild group, with 5 bilateral sides knee arthrocentesis in them, and 14 specimens from 14 TKA patients of severe group. The patients were significantly younger in the mild group than in the severe group (P<0.05), but there was no significant difference in gender or body mass index between the two groups (P>0.05). Nineteen pairs of cartilage samples with mild and severe wear were collected from severe KOA patients (K-L grading Ⅲ and Ⅳ), including 9 males and 10 females, with an average age of 70.4 years (range, 58-80 years). The body mass index ranged from 21.2 to 30.7 kg/m2, with an average of 25.6 kg/m2. The content of Zn in synovial fluid and cartilage from KOA patients was the highest, followed by Cu, and Mn was the lowest. The Cu content in synovial fluid was significantly higher in the severe group than in the mild group (P<0.05), and in the severe wear group than in the mild wear group (P<0.05). There was no significant difference in Zn and Mn content between the two groups (P>0.05). Conclusion The Cu content increases with the severity of cartilage wear in patients with KOA.
摘要:目的：觀察小兒反復性肺炎的發生與血微量元素的關系。方法:選擇56例反復性肺炎患兒為觀察組，與60例健康兒童作對照，分別測定血鎘、鉛、銅、鋅、鈣、鎂、鐵含量。結果:56例反復性肺炎患兒血鋅、鐵含量較對照組減低，差異有統計學意義（Plt;0.05）。結論:部分反復性肺炎的發生與血微量元素鋅、鐵缺乏有關。應對反復性肺炎患兒常規行血微量元素檢測，對血微量元素缺乏者應予相應補充治療。Abstract: Objective: To observe the relationship to the occurrence of repeated pneumonia and the microelement in blood. Methods: We chose the 56 infant patients who suffered from repeated pneumonia as the observe group while the 60 health infants as the comprise group, then test the content of cadmium， plumbum， cuprum， zinc， calcium， magnesium and ferrum in blood. Results: The content of zinc and ferrum in the patient’s blood was lower than the comparison group, and the P value was Plt;0.01 and Plt;0.05 respectively, there was obvious differentiation between the two groups. Conclusion: Occurence of part repeated pneumonia is related to the deficiency of the microelements zinc and ferrum in blood. We should detect the common content of microelement to the infant patients who suffer the repeated pneumonia, and give a complement treatment to the microelements’ deficiency infant patients.
Febrile seizure is one of the most common emergencies in children, accounting for about 30% of all types of children, and the most common among children aged 6 months to 5 years. At the same time, children in this age group are at the peak of growth and development, and the content of various trace elements in the body is prone to abnormalities. At present, there are few related studies on febrile seizure and trace elements in children. This paper summarizes the related studies on febrile seizure and trace elements in order to provide theoretical guidance for the prevention and treatment of febrile seizure
目的 探討慢性阻塞性肺疾病（COPD）患者中微量元素銅和鋅與炎癥介質的關系。 方法 2010年11月－2011年3月間測量15例COPD急性加重期患者入院時及治療后和13例健康者為對照組的血清銅、鋅、C反應蛋白（CRP）、白介素-6（IL-6），血漿中金屬硫蛋白，以及氧化應激產物丙二醛的濃度變化。并對銅、鋅濃度變化與CRP、IL-6進行相關分析。 結果 COPD組血清中銅濃度、CRP、IL-6水平高于對照組（P＜0.05），同時急性加重期患者血清中銅的濃度、CRP、IL-6水平以及丙二醛值高于緩解期患者（P＜0.05）。而急性加重期患者血清中鋅濃度低于緩解期組和對照組（P＜0.05）。血漿中抗氧化物質金屬硫蛋白在三組間差異無統計學意義（P＞0.05）。在微量元素與炎癥因子的相關分析中發現，銅與CRP（r=0.602，P＜0.001）、IL-6（r=0.533，P＜0.001）呈正相關，鋅與IL-6呈負相關（r=?0.336，P＜0.05）。 結論 在COPD氧化應激發病機制中，銅可能發揮促氧化應激的作用，而鋅可能發揮抗氧化應激的作用。微量元素穩態的紊亂有可能是COPD急性加重的危險因素。