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Original article
Association between total body muscle percentage and prevalence of non-alcoholic fatty liver disease in Korean adults findings from an 18-year follow-up: a prospective cohort study
Byoung Chan Ahn, Chul Yong Park, Jung Hee Hong, Ki Ook Baek
J Yeungnam Med Sci. 2023;40(Suppl):S47-S55.   Published online August 29, 2023
DOI: https://doi.org/10.12701/jyms.2023.00605
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AbstractAbstract PDFSupplementary Material
Background
This study aimed to elucidate the association between total lean muscle mass and the incidence of non-alcoholic fatty liver disease (NAFLD) in the adult Korean population.
Methods
Utilizing data derived from the 18-year prospective cohort of the Korean Genome and Epidemiology Study, NAFLD was diagnosed via the hepatic steatosis index with an established cutoff value of 36. Lean muscle mass was assessed via bioelectrical impedance analysis and subsequently divided into tertiles. A generalized mixed model with a logit link was employed for repeated measures data analysis, accounting for potential confounders.
Results
Analysis encompassed 7,794 participants yielding 49,177 measurements. The findings revealed a markedly increased incidence of NAFLD in the lower tertiles of muscle mass, specifically, tertile 1 (odds ratio [OR], 20.65; 95% confidence interval [CI], 9.66–44.11) and tertile 2 (OR, 4.57; 95% CI, 2.11–9.91), in comparison to tertile 3. Age-dependent decreases in the OR were observed within the tertile 1 group, with ORs of 10.12 at age of 40 years and 4.96 at age of 80 years. Moreover, each 1%-point increment in total muscle mass corresponded with an estimated OR of 0.87 (95% CI, 0.82–0.93) for NAFLD resolution.
Conclusions
The study demonstrates a significant association between total muscle mass and NAFLD prevalence among Korean adults. Given the potential endocrine role of muscle mass in NAFLD pathogenesis, interventions aimed at enhancing muscle mass might serve as an effective public health strategy for mitigating NAFLD prevalence.
Case reports
Ultrasonographic and magnetic resonance images of a gluteus maximus tear
Jong Bum Kim, Wonho Lee, Min Cheol Chang
Yeungnam Univ J Med. 2021;38(2):157-159.   Published online July 31, 2020
DOI: https://doi.org/10.12701/yujm.2020.00500
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  • 2 Crossref
AbstractAbstract PDF
The diagnosis of a gluteal muscle tear or strain is based on clinical findings. However, for an accurate diagnosis, imaging examinations are also needed. Herein, we describe the case of a patient with a gluteus maximus muscle tear confirmed by ultrasonography (US) and magnetic resonance imaging (MRI). A 58-year-old woman complained of dull pain in the left lateral gluteal region that she had been experiencing for 8 days. In the axial US image, retraction of the left gluteus maximus muscle was noted around its insertion site in the iliotibial band. On an MRI, a partial tear in the left gluteus maximus was observed at its insertion site in the left iliotibial band. In addition, fluid infiltration due to edema and hemorrhage was observed. A partial left gluteal muscle tear was diagnosed. The patient was treated with physical therapy at the involved region and oral analgesics. She reported relief from the pain after 1 month of treatment. Based on this experience, we recommend US or MRI for accurate diagnosis of muscle tear or strain.

Citations

Citations to this article as recorded by  
  • Essentials of thoracic outlet syndrome: A narrative review
    Min Cheol Chang, Du Hwan Kim
    World Journal of Clinical Cases.2021; 9(21): 5804.     CrossRef
  • Obturator hernia - a rare etiology of lateral thigh pain: A case report
    Jun Young Kim, Min Cheol Chang
    World Journal of Clinical Cases.2021; 9(34): 10728.     CrossRef
Rectus abdominis muscle atrophy after thoracotomy
Jang Hoon Lee, Seok Soo Lee
Yeungnam Univ J Med. 2020;37(2):133-135.   Published online November 27, 2019
DOI: https://doi.org/10.12701/yujm.2019.00381
  • 7,006 View
  • 120 Download
  • 1 Crossref
AbstractAbstract PDF
Intercostal nerve injury is known to occur during thoracotomy; however, rectus abdominis muscle atrophy has rarely been reported. We describe a 52-year-old man who underwent primary closure of esophageal perforation and lung decortication via left thoracotomy. He was discharged 40 days postoperatively without any complications. He noticed an abdominal bulge 2 months later, and computed tomography revealed left rectus abdominis muscle atrophy. We report thoracotomy induced denervation causing rectus abdominis muscle atrophy.

Citations

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  • Ingenuity of minimally invasive thoracoscopic lobectomy for undiagnosed pulmonary tumour
    Sumitaka Yamanaka, Takashi Yoshimatsu, Takeaki Miyata, Hanae Higa
    Respirology Case Reports.2020;[Epub]     CrossRef
Original Article
The effect of thalidomide on visceral fat pad mass and triglyceride concentration of the skeletal muscles in rats
Ki-Hoon Kim, Chang-Bon Choi, Jong-Yeon Kim
Yeungnam Univ J Med. 2018;35(2):213-218.   Published online December 31, 2018
DOI: https://doi.org/10.12701/yujm.2018.35.2.213
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  • 52 Download
  • 1 Crossref
AbstractAbstract PDF
Background
Body fats, especially both of abdominal fat pad mass and skeletal muscle fat content, are inversely related to insulin action. Therefore, methods for decreasing visceral fat mass and muscle triglyceride content may be helpful for the prevention of insulin resistance.
Methods
Thalidomide, used for its anti-angiogenic and anti-inflammatory properties, was administered to rats for 4 weeks. A 10% solution of thalidomide in dimethyl sulfoxide was injected daily into the peritoneal cavity as much as 100 mg/kg of body weight.
Results
The total visceral fat pad mass in the thalidomide-treated group was 11% lower than in the control group. The size of adipocytes of the epididymal fat pad mass in the thalidomide-treated group was smaller than in the control group. The intraperitoneal thalidomide treatment increased triglyceride concentrations by 16% in the red muscle, but not in the white muscle.
Conclusion
The results suggested that intraperitoneal thalidomide treatment inhibited abdominal fat accumulation, and that the free fatty acids in the blood were preferentially accumulated in the red muscle rather than in the white muscle.

Citations

Citations to this article as recorded by  
  • Thalidomide suppresses migration and invasion of colorectal cancer cells by inhibiting HOXB7‐mediated activation of the Wnt/β‐catenin signaling pathway
    Liyang Liu, Wusong Xue
    Chemical Biology & Drug Design.2024;[Epub]     CrossRef
Case Reports
Suddenly fixed upward ocular deviation under general anesthesia
Won Jae Kim, Sang Jin Park, Myung Mi Kim
Yeungnam Univ J Med. 2017;34(2):290-292.   Published online December 31, 2017
DOI: https://doi.org/10.12701/yujm.2017.34.2.290
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AbstractAbstract PDF
Various changes in ocular position are possible during general anesthesia as opposed to the awakening state. However, unexpected ocular deviation under general anesthesia is a disconcerting event as it can lead to difficult complications intraoperatively. To date, sudden fixed upward ocular deviation has been rarely reported previously. This phenomenon was observed in an 8-year-old boy during strabismus surgery. Suddenly fixed upward ocular deviation occurred when the speculum was inserted into the right eye. When the eyeball was pulled down, using forceps, there was some resistance, such as contracture of superior rectus. The eyeball sprang back into the upward position when the forceps was released. These changes could hamper the good exposition of the surgical field, leading to significant intraoperative difficulties and complications. Surgeons should be aware of this possibility, despite general anesthesia; if it occurs, proceed with the surgery as planned preoperatively, and both ophthalmic and anesthetic interventions should be used to solve this problem.
Spontaneous abdominal intramuscular hematoma in a non-dialysis chronic kidney disease patient under cilostazol therapy.
Seonghui Kang, Hyung Min Yu, Ha Young Na, Young Kyung Ko, Se Woong Kwon, Chae Ho Lim, Sun Woong Kim, Young Il Jo
Yeungnam Univ J Med. 2014;31(2):139-143.   Published online December 31, 2014
DOI: https://doi.org/10.12701/yujm.2014.31.2.139
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AbstractAbstract PDF
Spontaneous intramuscular hematoma of the abdominal wall is a rare condition characterized by acute abdominal pain. It is often misdiagnosed as a surgical condition. It used to be associated with risk factors such as coughing, pregnancy, and anticoagulant therapy. Most cases of abdominal wall hematomas were rectus sheath hematomas caused by the rupture of either the superior or inferior epigastric artery, but spontaneous internal oblique hematoma was extremely rare. In this report, we present a case of spontaneous internal oblique hematoma in a 69-year-old man with non-dialysis chronic kidney disease who was taking cilostazol. The patient complained of abrupt abdominal pain with a painful palpable lateral abdominal mass while sleeping. The abdominal computed tomography showed an 8 cm-sized mass in the patient's left internal oblique muscle. The administration of cilostazol was immediately stopped, and the intramuscular hematoma of the lateral oblique muscle disappeared with conservative management.
Reviews
Various Abdominal Flaps for Breast Reconstruction: Pedicled TRAM, Free TRAM, Muscle-sparing TRAM, DIEP, and SIEA Flaps.
Jun Ho Lee
Yeungnam Univ J Med. 2011;28(2):116-123.   Published online December 31, 2011
DOI: https://doi.org/10.12701/yujm.2011.28.2.116
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AbstractAbstract PDF
The incidence of breast cancer, the second most prevalent cancer type in South Korea, has increased by 6.8% annually in the lastsix years.The higher number of breast cancer patients has led to an increase in the cases of skin-sparing mastectomies, thereby increasing the need for reconstructive procedures. The reconstruction options include alloplastic techniques such as implant or autologous reconstruction with numerous flaps. The abdominal area is the preferred donorsite for the harvest of autologous tissue for breast reconstruction. Breast reconstruction using abdonimal tissue is commonly accomplished using the transverse rectus abdominis myocutaneous (TRAM) flap. The establishment of microvascular surgery led to the development of the free TRAM flap because of its increased vascularity and decreased rectus abdominis sacrifice. The muscle-sparing TRAM, DIEP, and SIEA flap techniques were later developed in an effort to decrease the abdominal-donor-site morbidity by decreasing the injury to the rectus abdominis muscle and fascia. This article summarizes the various abdominal flaps for breast reconstruction.
In Vitro Culture of Endothelial Cell and Smooth Muscle Cell for Studying Vascular Diseases.
Joo Young Kim
Yeungnam Univ J Med. 2010;27(2):91-97.   Published online December 31, 2010
DOI: https://doi.org/10.12701/yujm.2010.27.2.91
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AbstractAbstract PDF
Endothelial cells play a key role in pathological processes such as cancer cell metastasis, atherosclerosis, and diabetic retinopathy. Vascular smooth muscle cells directly involve in the formation of atheroma in atherosclerosis. Some kinds of the endothelial cells are simply harvested from the umbilical veins, the tunica intima of aortic walls, the retina using various enzymes solutions. Those purely isolated cells provide a powerful tool in vitro studies of the endothelial cell related diseases. In this context, the cultured smooth muscle cells after the isolation from the tunica media of aortic walls are also used for elucidating the pathogenesis of atherosclerosis. Here, I briefly introduce articles that include the isolation of human umbilical vein endothelial cells (HUVEC), aortic endothelial and smooth muscle cells, retinal microvascular endothelial cells (RMEC), as well as the diseases' applications of these cells.
Case Report
Injury of the Medial Rectus Muscle by Using a Microdebrider During Endoscopic Sinus Surgery : A Case Report.
Yoon Seok Choi, Chang Hoon Bai, Si Youn Song, Yong Dae Kim
Yeungnam Univ J Med. 2006;23(2):240-246.   Published online December 31, 2006
DOI: https://doi.org/10.12701/yujm.2006.23.2.240
  • 1,479 View
  • 1 Download
AbstractAbstract PDF
A microdebrider is increasingly used in endoscopic sinus surgery. Although it has many advantages over conventional instruments, it has been associated with severe complications. We treated a case of rupture of the left medial rectus muscle after use of a microdebrider during endoscopic sinus surgery in a 50 year-old female patient who complained of binocular diplopia and exotropia. The patient showed marked limitation on adduction and about 40 prism diopters of left exodeviation. The orbital computed tomography showed a bony defect at the left medial orbital wall, and injury of the medial rectus muscle. The exodeviation was corrected after ophthalmologic surgery. We report a case of the rupture of the medial rectus muscle after use of a microdebrider during endoscopic sinus surgery and review the medical literature.
Original Articles
Isolation of Endothelial Cells and Smooth Muscle Cells from Rat Aort.
Young Eun Yun, In Hwan Song, Eon Ki Sung, Joo Young Kim
Yeungnam Univ J Med. 2006;23(2):182-192.   Published online December 31, 2006
DOI: https://doi.org/10.12701/yujm.2006.23.2.182
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AbstractAbstract PDF
BACKGROUND
Atherosclerosis has emerged as the leading cause of death in developed countries. At present, human umbilical vein endothelial cells (HUVEC) are most commonly used for the investigation of Endothelial cells (EC). However, HUVEC are not found in arteries but only in veins. Currently there are many reports on methods used to isolate EC;, most of these methods require special equipment to remove contaminating smooth muscle cells (SMC). MATERIALS AND METHODS: The method described here may be used to isolate not only ECs but also SMCs;,the approach presented here did not require special equipment. Rat aorta was treated with 2 mg/ml of type II collagenase solution for 45 minutes. The isolated cells from the aorta were incubated in medium G for a week;, only ECs could be separated. After the collagenase treatment, the rest of aorta was cut lengthwise, and left undisturbed to obtain SMCs in the culture dish for 10 days. To verify the purity of the isolated cells, we performed immunofluorescence and evaluated the results with transmission electron microscopy analysis. RESULTS: The immunofluorescence study demonstrated specific expression of CD31 and alpha-smooth muscle actin in the isolated ECs and SMCs, respectively. Cultured ECs and SMCs showed their own fine structure characteristics. CONCLUSION: These results suggest that this method for isolating ECs and SMCs may be especially useful for the study of atherosclerosis.
The Relationship Between Body Composition and Bone Mineral Density in Postmenopausal Women.
Jin Wook Chae, Il Hoe Kim, Woo Sung Kwon, Keun Mi Lee, Seung Pil Jung, Yong Moon
Yeungnam Univ J Med. 2003;20(1):53-61.   Published online June 30, 2003
DOI: https://doi.org/10.12701/yujm.2003.20.1.53
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AbstractAbstract PDF
BACKGROUND
Body weight is an important factor that influence the bone density in postmenopausal women except estrogen dificiency. However, different results are reported about the relationship between body composition and bone density in the postmenopausal women. We have studied the relationship between age, body weight, body mass index (BMI), waist hip ratio (WHR), muscle mass, fat mass, fat free mass and bone density. MATERIALS AND METHODS: We have studied 127 persons of postmenopausal women who visited university medical center and examined the inbody 3.0 and Dual Energy X-ray Absorptiometry (DEXA) from Jan, 2001 to Jun, 2002. they didn't have any disease and didn't received hormone therapy, osteoporosis therapy or other medication that influence the bone density. RESULTS: The numbers of study subjects is total 127 persons. Mean age is 56.9+/-5.14, mean weight is 59.3+/-8.7 kg, mean BMI is 25.37+/-3.16 (kg/m2), mean fat mass is 20.02+/-5.05 kg, mean muscle mass is 37.49+/-4.50 kg, mean fat free mass is 39.80+/-4.70, mean BMD is 0.828+/-0.148 (g/cm2). In the result of linear regression analysis, age, height, weight, muscle mass, fat free mass, fat mass, BMI are significant determinants of BMD. In stepwise multiple regression analysis, age is the most significant determinant of BMD and besides age, fat free mass is the most significant determinant of BMD among body composition. CONCLUSION: In postmenopausal women, age, height, weight, BMI, muscle mass, fat free mass, fat mass are significant determinants of BMD and besides age, fat free mass is the most significant determinant of BMD among the body composition. So, diet and exercise that increase fat free mass will contribute to bone density increment.

Citations

Citations to this article as recorded by  
  • Problems with Bone Health and the Influencing Factors of Bone Mineral Density in Women across the Life Cycle
    Nami Chun, Hyunju Chae
    Korean Journal of Women Health Nursing.2015; 21(1): 43.     CrossRef
  • Association between bone mineral density and remaining teeth in postmenopausal women
    Kyeong-Soo Lee, Chang-Suk Kim
    Journal of Korean society of Dental Hygiene.2014; 14(3): 319.     CrossRef
  • Association of Anthropometric and Biochemical Factors with Bone Mineral Density in Korean Adult Women Data from the Fourth (2008~2009) and Fifth (2010~2011) Korea National Health and Nutrition Examination Surveys (KNHANES IV & V)
    Soon-Nam Choi, Kwang-Hyun Jho, Nam-Yong Chung
    Journal of the Korean Dietetic Association.2014; 20(3): 157.     CrossRef
  • A Study of Factors Influencing the Bone Mineral Density on Premenopausal Women: Using the 2011 Korean National Health and Nutrition Examination Survey Data
    Young-Mi Chun, Sun-Hee Lee
    Journal of the Korea Academia-Industrial cooperation Society.2013; 14(12): 6246.     CrossRef
  • Factors Associated with Bone Mineral Density in Korean Postmenopausal Women Aged 50 Years and Above: Using 2008-2010 Korean National Health and Nutrition Examination Survey
    Son-Ok Mun, Jihye Kim, Yoon Jung Yang
    Korean Journal of Community Nutrition.2013; 18(2): 177.     CrossRef
Diagnostic Sensitivity of Several Muscles in Repetitive Nerve Stimulation Test for Myasthenia Gravis.
Hyun Jic Kim, Sung Hwan Lim, Seung Yeop Lee, Jung Sang Hah, Wook Nyeon Kim
Yeungnam Univ J Med. 2001;18(2):277-286.   Published online December 31, 2001
DOI: https://doi.org/10.12701/yujm.2001.18.2.277
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  • 3 Download
AbstractAbstract PDF
BACKGROUND
This study was undertaken to evaluate the diagnostic sensitivity of several muscles in repetitive nerve stimulation test (RNST) for myasthenia gravis (MG) patients. MATERIALS AND METHODS: The study population consisted of 39 MG patients classified by modified Ossermann's classification. Using Stalberg's method, RNST was systematically performed in facial (orbicularis oculi and nasalis) and upper extremity (flexor carpi ulnaris, abductor digiti quinti and anconeus) muscles. RESULTS: The significant electrodecremental response of RNST were noted in orbicularis oculi (58.9%), nasalis (51.3%), flexor carpi ulnaris (42%), anconeus (41%) and abductor digiti quinti muscles (27%). Among the 3 muscles of upper extremity (abductor digiti quinti, flexor carpi ulnaris and anconeus), the positive electrodecremental response of anconeus muscles was significantly higher than other two muscles (p<0.05) in type IIa, IIb and there were no statistical differences of the positive electrodecremental response between orbicularis oculi and nasalis muscles. The facial muscles showed more prominent decremental responses than upper extremity muscles in type I MG(p<0.05). In type IIa MG patients, there were no significant statistical differences between facial and upper extremity muscles but significant statistical differences among upper extremity muscles. In type IIb MG patients, there were no significant statistical differences in all tested muscles in spite of the increased positive electrodecremental response of RNST. CONCLUSION: On the basis of this study, RNST would be initially performed for the orbicularis or nasalis in type I MG and for the anconeus in type IIa or IIb MG.
Effect of Age on Glucose Metabolism of Skeletal Muscle in Rats.
Eung Chan Jang, Woon Ki Youn, Suck Kang Lee
Yeungnam Univ J Med. 2001;18(1):94-100.   Published online June 30, 2001
DOI: https://doi.org/10.12701/yujm.2001.18.1.94
  • 1,787 View
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  • 3 Crossref
AbstractAbstract PDF
BACKGROUND
It is doubtful that aging causes deteriorated glucose metabolism and insulin resistance of skeletal muscle. Some researchers had different results about it. So we have studied the mechanism responsible for the abnormal glucose tolerance associated with aging in rapidly growing and matured rats. MATERIALS AND METHODS: Animals were used S.D. rats. Growing rats were 7 weeks old (BW: 160-190 gm) and matured rats were 28 weeks old (BW: 420-525 gm). RESULTS: Fasting blood glucose and plasma insulin levels were significantly elevated in matured rat compared with growing rats. And during oral glucose tolerance test the glucose level was also significantly elevated in matured rats. These results confirmed an insulin resistant state of aging. Insulin levels at 30 minutes of oral glucose tolerance test was significantly elevated in growing rat. But at 120 minutes it was maintained at higher level in matured rats than in growing rats. It suggested the possibility of increased insulin secretion by initial stimulation of beta-cells in growing rats, and increased secretion and decreased catabolic rate of insulin in matured rats. Glucose uptake rate of soleus muscle in matured rats was lower than that of growing rats, but the difference was not statistically significant. The dose(insulin)- responsive (glucose uptake) curve of soleus muscle was only slightly deviated to the right side. CONCLUSION: Glucose metabolism of rat skeletal muscle was worsened by aging. The data of glucose uptake experiments suggested the possibility of insulin resistance of skeletal muscle in matured rats, but the mechanism of insulin resistance of skeletal muscle need further studies.

Citations

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  • Anti-Oxidative Effect of Jeokbaekhaogwanjoong-tang Distillate on Spleen Cells of Aged Rats
    Young-Chun Park, Il-Gu Kim, Tae-Min Kim
    The Korea Journal of Herbology.2016; 31(4): 35.     CrossRef
  • The Effect of Jeokbaekhaogwanjung-tang Herbal Acupuncture Solution on the Immune Activity of Spleen Cells of Aged Rats
    Hyun-Suk Lee, Kang-Min Choi, Yun-Kyoung Yim
    Journal of Korean Medicine.2016; 37(1): 90.     CrossRef
  • The Effect of Yongyukjowitang Distillate on the Immune Activity of Spleen Cells of Aged Rats
    Jin-Wook Yi, Moon-Hee Jang, Jae-Song Choi, Taek-Won Ahn
    Journal of Sasang Constitutional Medicine.2013; 25(3): 218.     CrossRef
The Effects of Hyperglycemia and Hyperlipidemia on Muscle Glycogen Utilization during Exercise in rats.
Jong Chul Ahn, Dong Woo Lee, Oog Jin Shon, Seuk Kang Lee
Yeungnam Univ J Med. 1999;16(1):34-42.   Published online June 30, 1999
DOI: https://doi.org/10.12701/yujm.1999.16.1.34
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AbstractAbstract PDF
The effects of hyperglycemia and hyperlipidemia on utilization of muscle glycogen during 45 minutes treadmill running(26 m/min, 8 % grade) were evaluated in Sprague Dawley rats, and the charateristic of the 4 different type of muscles, soleus, white and red gastrocnemius, and plantaris, on glycogen utilization were simultameously investigated. Hyperglycemia, 145-165 mg/dL, was induced by oral glucose ingestion, and hyperlipidemia, 444 uEq/L, was induced by combined treatment of intraperitoneal heparine injection and oral 10 % intralipose ingestion. During the hyperglycemic trial, the glycogen utilization of plantaris muscle was decreased by 13 % at 45 minutes duration of treadmill running comparing to the control trial(p<0.05), and the glycogen utilization of white gastrocnemius was also decreased. The sparing tendency of soleus and red gastrocnemius by 5-13 % was observed at 30 and 45 minutes of treadmill running in hyperglycemic trial. There was no glycogen sparing effect of hyperlipidemia in the soleus, red gastrocnemius and plantaris muscle subjected in this experiment during exercise. However, only a slight sparing tendency of white gastrocnemius muscle was observed. In summary, the glycogen sparing effect of hyperglycemia during exercise was observed in plantaris and white gastrocnemius muscles in rats. However, there was no glycogen sparing effect of hyperlipidemia in the 4 hindlimb muscles. It was observed that the glycogen sparing effect of hyperglycemia is more prominant in fast glycolytic muscle fiber.
Effect of Hyperglycemia and Hyperlipidemia on Cardiac Muscle Glycogen Usage during Exercise in Rats.
Suck Kang Lee, Eun Jung Kim, Yong Woon Kim
Yeungnam Univ J Med. 1998;15(1):29-35.   Published online June 30, 1998
DOI: https://doi.org/10.12701/yujm.1998.15.1.29
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AbstractAbstract PDF
Rats were studied during 45 minutes treadmill exercise to determine the effects of hyperglycemia and hyperlipidemia on the utilization of cardiac muscle glycogen, and the utilization of diaphragm muscle glycogen was also studied for comparing to cardiac muscle. The hyperglycemia was produced by ingestion of 25% glucose solution(1ml/100gm, BW) and the hyperlipidemia by 10% intralipose ingestion(1ml/100gm, BW) with intraperitoneal injection of heparin(500 IU) 15 minutes before treadmill exercise. The mean blood glucose concentrations(mg/dL) in control and hyperglycemic rats were 110 and 145, respectively, and the mean plasma free fatty acid concentrations(micronEq/L) in control, control exercise(control-E) and hyperlipidemia exercise(HL-E) rats were 247, 260 and 444, respectively. In the hyperglycemic trial, the cardiac muscle glycogen concentration was not significantly decreased by the exercise but the concentration in control rats was decreased to 73.9%(p<0.05). The glycogen concentration of diaphragm was significantly decreased in both groups by the exercise, but the hyperglycemia decreased the glycogen utilization by approximately 10% compared to the control. The cardiac muscle glycogen concentration was not decreased by the exercise in control and hyperlipidemic rats but the utilization of glycogen in hyperlipidemic rats is lower than that of the control. These data illustrate the sparing effect of hyperglycemia on cardiac muscle glycogen usage during exercise, but the effect of hyperlipidemia was not conclusive. In the skeletal muscle, the usage of glycogen by exercise was spared by both hyperglycemia and hyperlipidemia.

Citations

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  • The Effects of Treadmill Exercise on Blood components, Antioxidant enzymes and Reactive Oxygen in Hyperlipidemic Rats
    Byeong-Ok Jung, Sang-Hun Jang, Hyun-Soo Bang
    Journal of the Korean Society of Physical Medicine.2013; 8(1): 71.     CrossRef

JYMS : Journal of Yeungnam Medical Science