1
|
Simon L, Torres D, Saravia A, Levitt DE, Vande Stouwe C, McGarrah H, Coleman L, Dufour JP, Amedee AM, Molina PE. Chronic binge alcohol and ovariectomy-mediated impaired insulin responsiveness in SIV-infected female rhesus macaques. Am J Physiol Regul Integr Comp Physiol 2021; 321:R699-R711. [PMID: 34524906 PMCID: PMC8616623 DOI: 10.1152/ajpregu.00159.2021] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 08/24/2021] [Accepted: 09/09/2021] [Indexed: 12/13/2022]
Abstract
Aging people living with HIV (PLWH), especially postmenopausal women may be at higher risk of comorbidities associated with HIV, antiretroviral therapy (ART), hypogonadism, and at-risk alcohol use. Our studies in simian immunodeficiency virus (SIV)-infected male macaques demonstrated that chronic binge alcohol (CBA) reduced acute insulin response to glucose (AIRG), and at-risk alcohol use decreased HOMA-β in PLWH. The objective of this study was to examine the impact of ovariectomy (OVX) on glucose-insulin dynamics and integrity of pancreatic endocrine function in CBA/SIV-infected female macaques. Female macaques were administered CBA (12-15 g/kg/wk) or isovolumetric water (VEH) intragastrically. Three months after initiation of CBA/VEH administration, all macaques were infected with SIVmac251, and initiated on antiretroviral therapy (ART) 2.5 mo postinfection. After 1 mo of ART, macaques were randomized to OVX or sham surgeries (n = 7 or 8/group), and euthanized 8 mo post-OVX (study endpoint). Frequently sampled intravenous glucose tolerance tests (FSIVGTT) were performed at selected time points. Pancreatic gene expression and islet morphology were determined at study endpoint. There was a main effect of CBA to decrease AIRG at Pre-SIV and study endpoint. There were no statistically significant OVX effects on AIRG (P = 0.06). CBA and OVX decreased the expression of pancreatic markers of insulin docking and release. OVX increased endoplasmic stress markers. CBA but not OVX impaired glucose-insulin expression dynamics in SIV-infected female macaques. Both CBA and OVX altered integrity of pancreatic endocrine function. These findings suggest increased vulnerability of PLWH to overt metabolic dysfunction that may be exacerbated by alcohol use and ovarian hormone loss.
Collapse
Affiliation(s)
- Liz Simon
- Department of Physiology, Louisiana State University Health Sciences Center, New Orleans, Louisiana
- Comprehensive Alcohol HIV/AIDS Research Center, Louisiana State University Health Sciences Center, New Orleans, Louisiana
| | - Diego Torres
- Department of Physiology, Louisiana State University Health Sciences Center, New Orleans, Louisiana
| | - Ari Saravia
- Department of Physiology, Louisiana State University Health Sciences Center, New Orleans, Louisiana
| | - Danielle E Levitt
- Department of Physiology, Louisiana State University Health Sciences Center, New Orleans, Louisiana
- Comprehensive Alcohol HIV/AIDS Research Center, Louisiana State University Health Sciences Center, New Orleans, Louisiana
| | - Curtis Vande Stouwe
- Department of Physiology, Louisiana State University Health Sciences Center, New Orleans, Louisiana
- Comprehensive Alcohol HIV/AIDS Research Center, Louisiana State University Health Sciences Center, New Orleans, Louisiana
| | - Heather McGarrah
- Department of Physiology, Louisiana State University Health Sciences Center, New Orleans, Louisiana
- Comprehensive Alcohol HIV/AIDS Research Center, Louisiana State University Health Sciences Center, New Orleans, Louisiana
| | - Larry Coleman
- Department of Physiology, Louisiana State University Health Sciences Center, New Orleans, Louisiana
- Comprehensive Alcohol HIV/AIDS Research Center, Louisiana State University Health Sciences Center, New Orleans, Louisiana
| | - Jason P Dufour
- Division of Veterinary Medicine, Tulane National Primate Research Center, Covington, Louisiana
| | - Angela M Amedee
- Comprehensive Alcohol HIV/AIDS Research Center, Louisiana State University Health Sciences Center, New Orleans, Louisiana
- Department of Microbiology, Immunology and Parasitology, Louisiana State University Health Sciences Center, New Orleans, Louisiana
| | - Patricia E Molina
- Department of Physiology, Louisiana State University Health Sciences Center, New Orleans, Louisiana
- Comprehensive Alcohol HIV/AIDS Research Center, Louisiana State University Health Sciences Center, New Orleans, Louisiana
| |
Collapse
|
2
|
Chen CH, Cheng TL, Chang CF, Huang HT, Lin SY, Wu MH, Kang L. Raloxifene Ameliorates Glucosamine-Induced Insulin Resistance in Ovariectomized Rats. Biomedicines 2021; 9:biomedicines9091114. [PMID: 34572301 PMCID: PMC8466068 DOI: 10.3390/biomedicines9091114] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 08/22/2021] [Accepted: 08/24/2021] [Indexed: 12/15/2022] Open
Abstract
Osteoarthritis (OA) and osteoporosis (OP) are common among older women, especially postmenopausal women. Glucosamine (GlcN) is a common medication for OA, but it may induce insulin resistance and β-cell dysfunction, especially if ovarian hormones are lacking. Raloxifene (RLX) is a selective estrogen receptor modulator and also an OP drug. Previously, we found that estrogen could improve GlcN-induced insulin resistance in ovariectomized (OVX) rats. Here, we further hypothesized that RLX, similarly to estrogen, can ameliorate GlcN-induced insulin resistance in OVX rats. We used GlcN to induce insulin resistance in OVX rats as a model for evaluating the protective effects of RLX in vivo. We used a pancreatic β-cell line, MIN-6, to study the mechanisms underlying the effect of RLX in GlcN-induced β-cell dysfunction in vitro. Increases in fasting plasma glucose, insulin, and homeostasis model assessments of insulin resistance in OVX Sprague Dawley rats treated with GlcN were reversed by RLX treatment (n = 8 in each group). Skeletal muscle GLUT-4 increased, liver PEPCK decreased, pancreatic islet hypertrophy, and β-cell apoptosis in OVX rats treated with GlcN was ameliorated by RLX. The negative effects of GlcN on insulin secretion and cell viability in MIN-6 cells were related to the upregulation of reticulum (ER) stress-associated proteins (C/EBP homologous protein, phospho-extracellular signal-regulated kinase, phospho-c-JunN-terminal kinase), the expression of which was reduced by RLX. Pretreatment with estrogen receptor antagonists reversed the protective effects of RLX. GlcN can induce insulin resistance, β-cell dysfunction, and apoptosis in OVX rats and increase ER stress-related proteins in β-cells, whereas RLX can reverse these adverse effects. The effects of RLX act mainly through estrogen receptor α; therefore, RLX may be a candidate drug for postmenopausal women with OA and OP.
Collapse
Affiliation(s)
- Chung-Hwan Chen
- Orthopaedic Research Center, College of Medicine, Kaohsiung Medical University, Kaohsiung 80701, Taiwan
- Department of Orthopedics, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 80701, Taiwan
- Regeneration Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung 80701, Taiwan
- Departments of Orthopedics, College of Medicine, Kaohsiung Medical University, Kaohsiung 80701, Taiwan
- Department of Orthopedics, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung Medical University, Kaohsiung 80145, Taiwan
- Department of Healthcare Administration and Medical Informatics, Kaohsiung Medical University, Kaohsiung 80701, Taiwan
- Institute of Medical Science and Technology, National Sun Yat-Sen University, Kaohsiung 80420, Taiwan
- Graduate Institute of Animal Vaccine Technology, College of Veterinary Medicine, National Pingtung University of Science and Technology, Pingtung 912301, Taiwan
- Graduate Institute of Materials Engineering, College of Engineering, National Pingtung University of Science and Technology, Pingtung 912301, Taiwan
| | - Tsung-Lin Cheng
- Orthopaedic Research Center, College of Medicine, Kaohsiung Medical University, Kaohsiung 80701, Taiwan
- Regeneration Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung 80701, Taiwan
- Department of Physiology, College of Medicine, Kaohsiung Medical University, Kaohsiung 80701, Taiwan
| | - Chi-Fen Chang
- Department of Anatomy, School of Medicine, China Medical University, Taichung 40402, Taiwan
| | - Hsuan-Ti Huang
- Orthopaedic Research Center, College of Medicine, Kaohsiung Medical University, Kaohsiung 80701, Taiwan
- Department of Orthopedics, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 80701, Taiwan
- Regeneration Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung 80701, Taiwan
- Departments of Orthopedics, College of Medicine, Kaohsiung Medical University, Kaohsiung 80701, Taiwan
- Department of Orthopedics, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung Medical University, Kaohsiung 80145, Taiwan
| | - Sung-Yen Lin
- Orthopaedic Research Center, College of Medicine, Kaohsiung Medical University, Kaohsiung 80701, Taiwan
- Department of Orthopedics, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 80701, Taiwan
- Regeneration Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung 80701, Taiwan
- Departments of Orthopedics, College of Medicine, Kaohsiung Medical University, Kaohsiung 80701, Taiwan
- Department of Orthopedics, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung Medical University, Kaohsiung 80145, Taiwan
- Department of Healthcare Administration and Medical Informatics, Kaohsiung Medical University, Kaohsiung 80701, Taiwan
| | - Meng-Hsing Wu
- Department of Obstetrics & Gynecology, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan
- Department of Obstetrics and Gynecology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan
| | - Lin Kang
- Department of Obstetrics & Gynecology, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan
- Department of Obstetrics and Gynecology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan
| |
Collapse
|
3
|
Chen CH, Kang L, Chang LH, Cheng TL, Lin SY, Wu SC, Lin YS, Chuang SC, Lee TC, Chang JK, Ho ML. Intra-articular low-dose parathyroid hormone (1-34) improves mobility and articular cartilage quality in a preclinical age-related knee osteoarthritis model. Bone Joint Res 2021; 10:514-525. [PMID: 34387115 PMCID: PMC8414442 DOI: 10.1302/2046-3758.108.bjr-2020-0165.r2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Aims Osteoarthritis (OA) is prevalent among the elderly and incurable. Intra-articular parathyroid hormone (PTH) ameliorated OA in papain-induced and anterior cruciate ligament transection-induced OA models; therefore, we hypothesized that PTH improved OA in a preclinical age-related OA model. Methods Guinea pigs aged between six and seven months of age were randomized into control or treatment groups. Three- or four-month-old guinea pigs served as the young control group. The knees were administered 40 μl intra-articular injections of 10 nM PTH or vehicle once a week for three months. Their endurance as determined from time on the treadmill was evaluated before kill. Their tibial plateaus were analyzed using microcalculated tomography (μCT) and histological studies. Results PTH increased the endurance on the treadmill test, preserved glycosaminoglycans, and reduced Osteoarthritis Research Society International score and chondrocyte apoptosis rate. No difference was observed in the subchondral plate bone density or metaphyseal trabecular bone volume and bone morphogenetic 2 protein staining. Conclusion Subchondral bone is crucial in the initiation and progression of OA. Although previous studies have shown that subcutaneous PTH alleviates knee OA by improving subchondral and metaphyseal bone mass, we demonstrated that intra-articular PTH injections improved spontaneous OA by directly affecting the cartilage rather than the subchondral or metaphyseal bone in a preclinical age-related OA model. Cite this article: Bone Joint Res 2021;10(8):514–525.
Collapse
Affiliation(s)
- Chung-Hwan Chen
- Orthopaedic Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan.,Institute of Medical Science and Technology, National Sun Yat-Sen University, Kaohsiung, Taiwan.,Department of Healthcare Administration and Medical Informatics, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Orthopedics, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Division of Adult Reconstruction Surgery, Department of Orthopedics, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Orthopedics, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Regeneration Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Lin Kang
- Department of Obstetrics and Gynecology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Ling-Hua Chang
- Orthopaedic Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Tsung-Lin Cheng
- Orthopaedic Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan.,Regeneration Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Physiology, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Sung-Yen Lin
- Orthopaedic Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Orthopedics, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Division of Adult Reconstruction Surgery, Department of Orthopedics, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Orthopedics, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Shun-Cheng Wu
- Orthopaedic Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan.,Regeneration Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yi-Shan Lin
- Orthopaedic Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Shu-Chun Chuang
- Orthopaedic Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan.,Regeneration Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Tien-Ching Lee
- Orthopaedic Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Orthopedics, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Division of Adult Reconstruction Surgery, Department of Orthopedics, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Orthopedics, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Regeneration Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Je-Ken Chang
- Orthopaedic Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Orthopedics, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Division of Adult Reconstruction Surgery, Department of Orthopedics, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Orthopedics, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Regeneration Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Mei-Ling Ho
- Orthopaedic Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan.,Regeneration Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Physiology, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung, Taiwan.,Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| |
Collapse
|
4
|
The lignan-rich fraction from Sambucus Williamsii Hance ameliorates dyslipidemia and insulin resistance and modulates gut microbiota composition in ovariectomized rats. Biomed Pharmacother 2021; 137:111372. [PMID: 33761598 DOI: 10.1016/j.biopha.2021.111372] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 01/25/2021] [Accepted: 01/31/2021] [Indexed: 12/13/2022] Open
Abstract
Menopausal women are susceptible to have high risk of cardiovascular diseases, type II diabetes and osteoporosis due to the metabolic disorder caused by estrogen deficiency. Accumulating evidence supports that gut microbiota is a key regulator of metabolic diseases. Our previous metabolomics study interestingly demonstrated that the anti-osteoporotic effects of lignan-rich fraction (SWCA) from Sambucus wialliamsii Hance were related to the restoration of a series of lipid and glucose metabolites. This study aims to investigate how SWCA modulates lipid and glucose metabolism and the underlying mechanism. Our results show that oral administration of SWCA (140 mg/kg and 280 mg/kg) for 10 weeks alleviated dyslipidemia, improved liver functions, prevented glucose tolerance and insulin actions, attenuated system inflammation and improved intestinal barrier in OVX rats. It also induced a high abundance of Actinobacteria, and restored microbial composition. We are the first to report the protective effects of the lignan-rich fraction from S. williamsii on dyslipidemia and insulin resistance. Our findings provide strong evidence for the application of this lignan-rich fraction to treat menopausal lipid disorder and insulin resistance-related diseases.
Collapse
|
5
|
De Paoli M, Werstuck GH. Role of Estrogen in Type 1 and Type 2 Diabetes Mellitus: A Review of Clinical and Preclinical Data. Can J Diabetes 2020; 44:448-452. [DOI: 10.1016/j.jcjd.2020.01.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 09/17/2019] [Accepted: 01/06/2020] [Indexed: 02/06/2023]
|
6
|
Insulin Resistance in Osteoarthritis: Similar Mechanisms to Type 2 Diabetes Mellitus. J Nutr Metab 2020; 2020:4143802. [PMID: 32566279 PMCID: PMC7261331 DOI: 10.1155/2020/4143802] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 05/01/2020] [Accepted: 05/11/2020] [Indexed: 02/06/2023] Open
Abstract
Osteoarthritis (OA) and type 2 diabetes mellitus (T2D) are two of the most widespread chronic diseases. OA and T2D have common epidemiologic traits, are considered heterogenic multifactorial pathologies that develop through the interaction of genetic and environmental factors, and have common risk factors. In addition, both of these diseases often manifest in a single patient. Despite differences in clinical manifestations, both diseases are characterized by disturbances in cellular metabolism and by an insulin-resistant state primarily associated with the production and utilization of energy. However, currently, the primary cause of OA development and progression is not clear. In addition, although OA is manifested as a joint disease, evidence has accumulated that it affects the whole body. As pathological insulin resistance is viewed as a driving force of T2D development, now, we present evidence that the molecular and cellular metabolic disturbances associated with OA are linked to an insulin-resistant state similar to T2D. Moreover, the alterations in cellular energy requirements associated with insulin resistance could affect many metabolic changes in the body that eventually result in pathology and could serve as a unified mechanism that also functions in many metabolic diseases. However, these issues have not been comprehensively described. Therefore, here, we discuss the basic molecular mechanisms underlying the pathological processes associated with the development of insulin resistance; the major inducers, regulators, and metabolic consequences of insulin resistance; and instruments for controlling insulin resistance as a new approach to therapy.
Collapse
|
7
|
Luo Q, Ji S, Li Z, Huang T, Fan S, Xi Q. Effects of ultrasound therapy on the synovial fluid proteome in a rabbit surgery-induced model of knee osteoarthritis. Biomed Eng Online 2019; 18:18. [PMID: 30795769 PMCID: PMC6387552 DOI: 10.1186/s12938-019-0637-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2018] [Accepted: 02/15/2019] [Indexed: 01/07/2023] Open
Abstract
Background Ultrasound (US) therapy may improve osteoarthritis symptoms. We investigated the effects of US on the synovial fluid (SF) proteome in a rabbit knee osteoarthritis (KOA) model to explore its therapeutic mechanisms. Methods Sixteen healthy 6-month-old New Zealand white rabbits (eight male, eight female), weighing 2.5–3.0 kg, were randomly divided into groups A and B with eight rabbits per group. Both groups were subjected to right anterior cruciate ligament transaction. Six weeks after surgery, we treated the operated knee joint of group A rabbits with US and of group B rabbits with sham US for 2 weeks. The proteomes of knee joint SF from groups A and B rabbits were then analyzed using a label-free mass spectrometry (MS) quantification method. Results We identified 19 protein sequences annotated by 361 Gene Ontology (GO) items. According to the Kyoto Encyclopedia of Genes and Genomes (KEGG) database of rabbit protein sequences, we then annotated the KO numbers of homologous/similar proteins to 32 relevant KEGG pathways. We extracted 10 significantly differentially expressed proteins among the 32 relevant KEGG messages/metabolism pathways. The proteins whose levels were decreased were apolipoprotein A-I (AopA-1), transferrin (TF), carboxypeptidase B2 (CBP2), arylesterase/paraoxonase (PON), fibrinogen alpha chain, and alpha-2-macroglobulin (A2M). The proteins whose levels were increased were molecular chaperone HtpG/heat shock proteins (htpG, HSP90A), decorin (DCN), pyruvate kinase (PK, pyk), and fatty acid-binding protein 4/adipocyte (FABP4, aP2). Conclusions US therapy can alter protein levels in SF, which can decrease AopA-1, TF, CBP2, PON, fibrinogen alpha chain and A2M protein levels, and increase HtpG/HSP90A, DCN, PK/PKY, and FABP4/aP2 protein levels in SF of KOA, suggesting that the therapeutic mechanisms of US therapy on KOA may occur through changes in the SF proteome.
Collapse
Affiliation(s)
- Qinglu Luo
- The Fifth Affiliated Hospital of Guangzhou Medicine University, No. 621, GangWan Road, HuangPu District, Guangzhou, 510700, Guangdong Province, China.,College of Rehabilitation Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, 350122, Fujian, China
| | - Shuangquan Ji
- The Fifth Affiliated Hospital of Guangzhou Medicine University, No. 621, GangWan Road, HuangPu District, Guangzhou, 510700, Guangdong Province, China
| | - Zhimi Li
- The Fifth Affiliated Hospital of Guangzhou Medicine University, No. 621, GangWan Road, HuangPu District, Guangzhou, 510700, Guangdong Province, China
| | - Tao Huang
- The Fifth Affiliated Hospital of Guangzhou Medicine University, No. 621, GangWan Road, HuangPu District, Guangzhou, 510700, Guangdong Province, China
| | - Siqin Fan
- College of Rehabilitation Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, 350122, Fujian, China
| | - Qin Xi
- The Fifth Affiliated Hospital of Guangzhou Medicine University, No. 621, GangWan Road, HuangPu District, Guangzhou, 510700, Guangdong Province, China.
| |
Collapse
|
8
|
Pacher KAS, Camargo TF, Andrade TAM, Barbosa-Sampaio HCL, Amaral MECD. Involvement of M1 and M3 receptors in isolated pancreatic islets function during weight cycling in ovariectomized rats. Biochem Cell Biol 2019; 97:647-654. [PMID: 30707596 DOI: 10.1139/bcb-2018-0306] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
We investigated the structural and functional adaptations of the pancreas during weight cycling in animals submitted to hypoestrogenism. Female Wistar rats were distributed among the following test groups: ShamAL (AL, ad libitum); OVXAL (ovariectomized); and OVXcycle (dietary restriction with weight cycling). The ShamAL and OVXAL groups received commercial feed ad libitum, whereas the OVXcycle group received 21 days of commercial feed ad libitum, and 21 days of caloric restriction, with caloric intake amounting to 40% of the amount of feed consumed by the rats in the OVXAL group. The tolerance tests for glucose and insulin were applied. After euthanasia, the pancreas and adipose tissue were collected. The disappearance of glucose during the insulin assay occurred at a higher rate in tissues from the OVXcycle group, compared with the OVXAL group. Fasting glycemia and perirenal adipose tissue were lower in the OVXcycle group. By comparison with the ShamAL and OVXAL groups, the OVXcycle group showed higher protein expression of the M1 and M3 receptors and SOD1-2, as well as higher carbachol-induced insulin secretion. Under highly stimulatory conditions with 16.7 mmol/L glucose, the OVXAL and OVXcycle groups presented lower insulin secretion compared with the ShamAL group. Morphological analysis revealed higher iron deposition in the OVXAL islets by comparison with the OVXcycle group. These results show that ovariectomy accelerated the loss of pancreatic islet function, and that weight cycling could restore the function of the islets.
Collapse
Affiliation(s)
- Kayo Augusto Salandin Pacher
- Graduate Program in Biomedical Sciences, Centro Universitário Hermínio Ometto, FHO/UNIARARAS, Araras, São Paulo, Brazil
| | - Thaís Furtado Camargo
- Graduate Program in Biomedical Sciences, Centro Universitário Hermínio Ometto, FHO/UNIARARAS, Araras, São Paulo, Brazil
| | | | | | | |
Collapse
|
9
|
Abstract
OBJECTIVE Glucosamine (GlcN), which has been reported to induce insulin resistance (IR), is a popular nutritional supplement used to treat osteoarthritis in menopausal women. We previously demonstrated that GlcN treatment caused IR in ovariectomized rats by reducing the expression of glucose transport protein subtype 4 (GLUT-4) in skeletal muscle. In the present study, we hypothesized that endurance exercise training can reverse GlcN-induced IR. METHODS Fifty female rats were randomly divided into five groups with 10 rats in each group: (1) sham-operated group; (2) sham-operated group with GlcN treatment for 14 days; (3) ovariectomy (OVX) group; (4) OVX with GlcN treatment; and (5) OVX with GlcN treatment followed by exercise training (running program) for 8 weeks. RESULTS Fasting plasma glucose increased in the OVX + GlcN group, and fasting plasma insulin and the homeostasis model assessment-insulin resistance (HOMA-IR) were significantly higher only in this group. After the rats received exercise training for 8 weeks, no increase in the fasting plasma glucose, insulin, or HOMA-IR was observed. In an intraperitoneal glucose tolerance test, the plasma glucose, plasma insulin, HOMA-IR, and glucose-insulin index were significantly elevated only in the OVX with GlcN treatment group. However, the plasma glucose, plasma insulin, HOMA-IR, and glucose-insulin index decreased after exercise training for 8 weeks, implying that GlcN-induced IR in OVX rats could be reversed through exercise. A histological analysis revealed that exercise training can reduce islet hypertrophy and maintain GLUT-4 in skeletal muscle. CONCLUSIONS Exercise training can alleviate IR in OVX rats treated with GlcN. Islet hyperplasia was subsequently prevented. Preserving GLUT-4 expression may be one of the mechanisms by which exercise prevents IR.
Collapse
|
10
|
Lin C, Chen C, Huang Y, Huang C, Huang J, Jang J, Lin Y. In-vivo investigations and cytotoxicity tests on Ti/Zr-based metallic glasses with various Cu contents. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 77:308-317. [DOI: 10.1016/j.msec.2017.03.228] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Revised: 11/01/2016] [Accepted: 03/24/2017] [Indexed: 12/24/2022]
|
11
|
Wu T, Xu J, Xu S, Wu L, Zhu Y, Li G, Ren Z. 17 β-Estradiol Promotes Islet Cell Proliferation in a Partial Pancreatectomy Mouse Model. J Endocr Soc 2017; 1:965-979. [PMID: 29264547 PMCID: PMC5686603 DOI: 10.1210/js.2016-1073] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Accepted: 05/31/2017] [Indexed: 12/31/2022] Open
Abstract
17β-Estradiol (E2) is a multifunctional steroid hormone in modulating metabolism in vivo. Previous studies have reported that E2 could promote insulin secretion and protect β cells from apoptosis. In this study, the partial pancreatectomy (PPx) model was used to study the role of E2 in islet cell proliferation. The animals were divided into four groups, including sham control, PPx model, E2, and E2 plus estrogen antagonist (E2 plus ICI) groups. In the E2 group, 5-bromo-2'-deoxyuridine- and Ki67-positive cells significantly increased after PPx, and the protein expression of forkhead transcription factor M1, cyclin A2, cyclin B1, and cyclin E2 also significantly increased in the isolated islets. The messenger RNA expression of cyclin A2 and cyclin B2 increased in E2 treatment group. Additionally, the effects of E2 on the PPx mice were partially blocked by estrogen antagonist ICI182,780. The results indicated that E2 significantly promoted islet cell proliferation in PPx model mice, and it upregulated the expression of cell cycle genes. In conclusion, E2 treatment is beneficial for islet cell proliferation in adult mice after PPx. A partial pancreatectomy in mice may be an attractive model for the study of islet cell proliferation.
Collapse
Affiliation(s)
- Tingting Wu
- Department of Neurobiology, School of Basic Medicine, Anhui Medical University, Hefei, Anhui 230032, China.,Department of Anatomy, School of Basic Medicine, Anhui Medical University, Hefei, Anhui 230032, China
| | - Jinyong Xu
- Department of Neurobiology, School of Basic Medicine, Anhui Medical University, Hefei, Anhui 230032, China.,Department of Anatomy, School of Basic Medicine, Anhui Medical University, Hefei, Anhui 230032, China
| | - Shengchun Xu
- Department of Anatomy, School of Basic Medicine, Anhui Medical University, Hefei, Anhui 230032, China
| | - Lianzhong Wu
- Department of Anatomy, School of Basic Medicine, Anhui Medical University, Hefei, Anhui 230032, China
| | - Youyu Zhu
- Department of Anatomy, School of Basic Medicine, Anhui Medical University, Hefei, Anhui 230032, China
| | - Guangwu Li
- Department of Neurobiology, School of Basic Medicine, Anhui Medical University, Hefei, Anhui 230032, China.,Department of Anatomy, School of Basic Medicine, Anhui Medical University, Hefei, Anhui 230032, China
| | - Zhenhua Ren
- Department of Neurobiology, School of Basic Medicine, Anhui Medical University, Hefei, Anhui 230032, China.,Department of Anatomy, School of Basic Medicine, Anhui Medical University, Hefei, Anhui 230032, China.,Cell Therapy Center, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| |
Collapse
|
12
|
|
13
|
Chen CH, Li CJ, Tai IC, Lin XH, Hsu HK, Ho ML. The Fractionated Toona sinensis Leaf Extract Induces Apoptosis of Human Osteosarcoma Cells and Inhibits Tumor Growth in a Murine Xenograft Model. Integr Cancer Ther 2016; 16:397-405. [PMID: 27879376 PMCID: PMC5759936 DOI: 10.1177/1534735416675951] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Osteosarcoma is a malignant bone tumor prevalent in adolescents with poor prognosis. Toona sinensis showed potent antiproliferation effect on lung, melatonin, ovary, colon, and liver cancers. However, the effects of the species on osteosarcoma cells are rarely investigated. RESULTS In this study, we found fraction 1 of Toona sinensis leaf (TSL-1) resulted in inhibition of cell viability in MG-63, Saos-2, and U2OS osteosarcoma cell lines, while it only caused a moderate suppressive effect on normal osteoblasts. In addition, TSL-1 significantly elevated lactate dehydrogenase leakage and induced apoptosis and necrosis in Saos-2 cells. TSL-1 increased mRNA expression of pro-apoptotic factor Bad. Most important, TSL-1 significantly suppressed Saos-2 xenograft tumor growth in nude mice by increasing caspase-3. The IC-50 of TSL-1 for the 3 tested osteosarcoma cells is around 1/9 of that for lung cancer cells. CONCLUSION We demonstrated that TSL-1, a fractionated extract from TSL, caused significant cytotoxicity to osteosarcoma cells due to apoptosis. In vivo xenograft study showed that TSL-1 suppressed the growth of osteosarcoma cells at least in part by inducing apoptosis. Our results indicate that TSL-1 has potential to be a promising anti-osteosarcoma adjuvant functional plant extract.
Collapse
Affiliation(s)
- Chung-Hwan Chen
- 1 Kaohsiung Medical University, Kaohsiung, Taiwan.,2 Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.,3 Department of Orthopedics, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung City, Taiwan
| | - Ching-Ju Li
- 1 Kaohsiung Medical University, Kaohsiung, Taiwan
| | - I-Chun Tai
- 1 Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Xiao-Hui Lin
- 1 Kaohsiung Medical University, Kaohsiung, Taiwan
| | | | - Mei-Ling Ho
- 1 Kaohsiung Medical University, Kaohsiung, Taiwan
| |
Collapse
|
14
|
Gartoulla P, Davis SR, Worsley R, Bell RJ, Gartoulla P, Davis SR, Worsley R, Bell RJ. Use of complementary and alternative medicines for menopausal symptoms in Australian women aged 40–65 years. Med J Aust 2015. [DOI: 10.5694/mja14.01723] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|