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Wei CW, Chen YQ, Ma M, Xiu MH, Zhang XY. Sex differences in the association of body mass index with symptoms and cognitive deficits in Chinese patients with chronic schizophrenia. Transl Psychiatry 2020; 10:18. [PMID: 32066717 PMCID: PMC7026182 DOI: 10.1038/s41398-020-0717-x] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 11/19/2019] [Accepted: 11/28/2019] [Indexed: 12/17/2022] Open
Abstract
Accumulating studies have revealed gender differences in many aspects of schizophrenia (SZ), including obesity and cognitive function. The relationship between obesity and cognitive impairment in SZ has been studied before; however, the results are inconsistent. This study was designed to examine the sex differences in the relationship between body mass index (BMI) and cognitive deficits in Chinese patients with chronic SZ, which have not been investigated yet. 176 chronic patients with SZ (male/female = 108/68) and 200 controls (male/female = 120/80) were enrolled to compare the sex differences in cognitive functions measured by the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS), BMI, and their associations. The clinical symptoms were evaluated using the positive and negative syndrome scales (PANSS). Our results showed that male patients had lower BMI and more negative symptoms but fewer positive symptoms than female patients (all p < 0.05). However, there was no significant sex difference in RBANS scores. In male patients, BMI was correlated with age of onset, PANSS general psychopathology, total score, negative symptom, together with RBANS language, visuospatial/construction, and attention. Further regression analysis showed that in male patients, BMI was significantly associated with RBANS language, PANSS general psychopathology, PANSS total score, and age of onset, with adjusted R2 = 0.22. These findings revealed significant sex differences in BMI, cognitive dysfunctions and their association in SZ. Nonetheless, these results should only be considered as preliminary because of the cross-sectional design, which will deserve further replication in first-episode patients using a prospective longitudinal design.
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Affiliation(s)
- Chang Wei Wei
- grid.24696.3f0000 0004 0369 153XDepartment of Anesthesiology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, P. R. China
| | - Ying Qi Chen
- grid.24696.3f0000 0004 0369 153XDepartment of Anesthesiology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, P. R. China
| | - Mi Ma
- grid.452792.fQingdao Mental Health Center, Qingdao, P. R. China
| | - Mei Hong Xiu
- Peking University HuiLongGuan Clinical Medical School, Beijing HuiLongGuan Hospital, Beijing, P. R. China.
| | - Xiang Yang Zhang
- CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, P. R. China. .,Department of Psychology, University of Chinese Academy of Sciences, Beijing, P. R. China.
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Choi E, Kim W, Joo SK, Park S, Park JH, Kang YK, Jin SY, Chang MS. Expression patterns of STAT3, ERK and estrogen-receptor α are associated with development and histologic severity of hepatic steatosis: a retrospective study. Diagn Pathol 2018; 13:23. [PMID: 29615085 PMCID: PMC5883355 DOI: 10.1186/s13000-018-0698-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Accepted: 03/12/2018] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Hepatic steatosis renders hepatocytes vulnerable to injury, resulting in the progression of preexisting liver disease. Previous animal and cell culture studies implicated mammalian target of rapamycin (mTOR), signal transducer and activator of transcription-3 (STAT3), extracellular signal-regulated kinase (ERK) and estrogen-receptor α in the pathogenesis of hepatic steatosis and disease progression. However, to date there have been few studies performed using human liver tissue to study hepatic steatosis. We examined the expression patterns of mTOR, STAT3, ERK and estrogen-receptor α in liver tissues from patients diagnosed with hepatic steatosis. METHODS We reviewed the clinical and histomorphological features of 29 patients diagnosed with hepatic steatosis: 18 with non-alcoholic fatty liver disease (NAFLD), 11 with alcoholic fatty acid disease (AFLD), and a control group (16 biliary cysts and 22 hepatolithiasis). Immunohistochemistry was performed on liver tissue using an automated immunostainer. The histologic severity of hepatic steatosis was evaluated by assessing four key histomorphologic parameters common to NAFLD and AFLD: steatosis, lobular inflammation, ballooning degeneration and fibrosis. RESULTS mTOR, phosphorylated STAT3, phosphorylated pERK, estrogen-receptor α were found to be more frequently expressed in the hepatic steatosis group than in the control group. Specifically, mTOR was expressed in 78% of hepatocytes, and ERK in 100% of hepatic stellate cells, respectively, in patients with NAFLD. Interestingly, estrogen-receptor α was diffusely expressed in hepatocytes in all NALFD cases. Phosphorylated (active) STAT3 was expressed in 73% of hepatocytes and 45% of hepatic stellate cells in patients with AFLD, and phosphorylated (active) ERK was expressed in hepatic stellate cells in all AFLD cases. Estrogen-receptor α was expressed in all AFLD cases (focally in 64% of AFLD cases, and diffusely in 36%). Phosphorylated STAT3 expression in hepatocytes and hepatic stellate cells correlated with severe lobular inflammation, severe ballooning degeneration and advanced fibrosis, whereas diffusely expressed estrogen-receptor α correlated with a mild stage of fibrosis. CONCLUSIONS Our data indicate ERK activation and estrogen-receptor α may be relevant in the development of hepatic steatosis. However, diffuse expression of estrogen-receptor α would appear to impede disease progression, including hepatic fibrosis. Finally, phosphorylated STAT3 may also contribute to disease progression.
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Affiliation(s)
- Euno Choi
- Department of Pathology, Seoul National University Boramae Hospital, Seoul National University College of Medicine, 20 Boramae-ro 5-gil, Dongjak-gu, Seoul, 07061, Korea
| | - Won Kim
- Department of Internal Medicine, Seoul National University Boramae Hospital, Seoul National University College of Medicine, 20 Boramae-ro 5-gil, Dongjak-gu, Seoul, Korea
| | - Sae Kyung Joo
- Department of Internal Medicine, Seoul National University Boramae Hospital, Seoul National University College of Medicine, 20 Boramae-ro 5-gil, Dongjak-gu, Seoul, Korea
| | - Sunyoung Park
- Department of Pathology, Seoul National University Boramae Hospital, Seoul National University College of Medicine, 20 Boramae-ro 5-gil, Dongjak-gu, Seoul, 07061, Korea
| | - Jeong Hwan Park
- Department of Pathology, Seoul National University Boramae Hospital, Seoul National University College of Medicine, 20 Boramae-ro 5-gil, Dongjak-gu, Seoul, 07061, Korea
| | - Yun Kyung Kang
- Department of Pathology, Seoul Paik Hospital, Inje University College of Medicine, Mareunnae-ro 9, Jung-gu, Seoul, Korea
| | - So-Young Jin
- Department of Pathology, Soon Chun Hyang University Hospital, 59 daesagwan-ro, Yongsan-gu, Seoul, Korea
| | - Mee Soo Chang
- Department of Pathology, Seoul National University Boramae Hospital, Seoul National University College of Medicine, 20 Boramae-ro 5-gil, Dongjak-gu, Seoul, 07061, Korea.
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Chambliss KL, Barrera J, Umetani M, Umetani J, Kim SH, Madak-Erdogan Z, Huang L, Katzenellenbogen BS, Katzenellenbogen JA, Mineo C, Shaul PW. Nonnuclear Estrogen Receptor Activation Improves Hepatic Steatosis in Female Mice. Endocrinology 2016; 157:3731-3741. [PMID: 27552247 PMCID: PMC5045504 DOI: 10.1210/en.2015-1629] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Estrogens have the potential to afford atheroprotection, to prevent excess adiposity and its metabolic complications including insulin resistance, and to lessen hepatic steatosis. Cellular responses to estrogens occur through gene regulation by nuclear estrogen receptors (ERs), and through signal initiation by plasma membrane-associated ER. Leveraging the potentially favorable cardiometabolic actions of estrogens has been challenging, because their reproductive tract and cancer-promoting effects adversely impact the risk to benefit ratio of the therapy. In previous works, we discovered that an estrogen dendrimer conjugate (EDC) comprised of ethinyl-estradiol (E2) molecules linked to a poly(amido)amine dendrimer selectively activates nonnuclear ER, and in mice, EDC does not invoke a uterotrophic response or support ER-positive breast cancer growth. In the present investigation, we employed EDC to determine how selective nonnuclear ER activation impacts atherosclerosis, adiposity, glucose homeostasis, and hepatic steatosis in female mice. In contrast to E2, EDC did not blunt atherosclerosis in hypercholesterolemic apoE-/- mice. Also in contrast to E2, EDC did not prevent the increase in adiposity caused by Western diet feeding in wild-type mice, and it did not affect Western diet-induced glucose intolerance. However, E2 and EDC had comparable favorable effect on diet-induced hepatic steatosis, and this was related to down-regulation of fatty acid and triglyceride synthesis genes in the liver. Predictably, only E2 caused a uterotrophic response. Thus, although nonnuclear ER activation does not prevent atherosclerosis or diet-induced obesity or glucose intolerance, it may provide a potential new strategy to combat hepatic steatosis without impacting the female reproductive tract or increasing cancer risk.
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Affiliation(s)
- Ken L Chambliss
- Center for Pulmonary and Vascular Biology (K.L.C., J.B., M.U., J.U., L.H., C.M., P.W.S.), Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, Texas, 75390; and Departments of Chemistry (S.H.K., J.A.K.), Food Science and Human Nutrition (Z.M.-E.), and Molecular and Integrative Physiology (B.S.K.), University of Illinois at Urbana-Champaign, Urbana, Illinois, 61801
| | - Jose Barrera
- Center for Pulmonary and Vascular Biology (K.L.C., J.B., M.U., J.U., L.H., C.M., P.W.S.), Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, Texas, 75390; and Departments of Chemistry (S.H.K., J.A.K.), Food Science and Human Nutrition (Z.M.-E.), and Molecular and Integrative Physiology (B.S.K.), University of Illinois at Urbana-Champaign, Urbana, Illinois, 61801
| | - Michihisa Umetani
- Center for Pulmonary and Vascular Biology (K.L.C., J.B., M.U., J.U., L.H., C.M., P.W.S.), Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, Texas, 75390; and Departments of Chemistry (S.H.K., J.A.K.), Food Science and Human Nutrition (Z.M.-E.), and Molecular and Integrative Physiology (B.S.K.), University of Illinois at Urbana-Champaign, Urbana, Illinois, 61801
| | - Junko Umetani
- Center for Pulmonary and Vascular Biology (K.L.C., J.B., M.U., J.U., L.H., C.M., P.W.S.), Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, Texas, 75390; and Departments of Chemistry (S.H.K., J.A.K.), Food Science and Human Nutrition (Z.M.-E.), and Molecular and Integrative Physiology (B.S.K.), University of Illinois at Urbana-Champaign, Urbana, Illinois, 61801
| | - Sung Hoon Kim
- Center for Pulmonary and Vascular Biology (K.L.C., J.B., M.U., J.U., L.H., C.M., P.W.S.), Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, Texas, 75390; and Departments of Chemistry (S.H.K., J.A.K.), Food Science and Human Nutrition (Z.M.-E.), and Molecular and Integrative Physiology (B.S.K.), University of Illinois at Urbana-Champaign, Urbana, Illinois, 61801
| | - Zeynep Madak-Erdogan
- Center for Pulmonary and Vascular Biology (K.L.C., J.B., M.U., J.U., L.H., C.M., P.W.S.), Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, Texas, 75390; and Departments of Chemistry (S.H.K., J.A.K.), Food Science and Human Nutrition (Z.M.-E.), and Molecular and Integrative Physiology (B.S.K.), University of Illinois at Urbana-Champaign, Urbana, Illinois, 61801
| | - Linzhang Huang
- Center for Pulmonary and Vascular Biology (K.L.C., J.B., M.U., J.U., L.H., C.M., P.W.S.), Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, Texas, 75390; and Departments of Chemistry (S.H.K., J.A.K.), Food Science and Human Nutrition (Z.M.-E.), and Molecular and Integrative Physiology (B.S.K.), University of Illinois at Urbana-Champaign, Urbana, Illinois, 61801
| | - Benita S Katzenellenbogen
- Center for Pulmonary and Vascular Biology (K.L.C., J.B., M.U., J.U., L.H., C.M., P.W.S.), Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, Texas, 75390; and Departments of Chemistry (S.H.K., J.A.K.), Food Science and Human Nutrition (Z.M.-E.), and Molecular and Integrative Physiology (B.S.K.), University of Illinois at Urbana-Champaign, Urbana, Illinois, 61801
| | - John A Katzenellenbogen
- Center for Pulmonary and Vascular Biology (K.L.C., J.B., M.U., J.U., L.H., C.M., P.W.S.), Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, Texas, 75390; and Departments of Chemistry (S.H.K., J.A.K.), Food Science and Human Nutrition (Z.M.-E.), and Molecular and Integrative Physiology (B.S.K.), University of Illinois at Urbana-Champaign, Urbana, Illinois, 61801
| | - Chieko Mineo
- Center for Pulmonary and Vascular Biology (K.L.C., J.B., M.U., J.U., L.H., C.M., P.W.S.), Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, Texas, 75390; and Departments of Chemistry (S.H.K., J.A.K.), Food Science and Human Nutrition (Z.M.-E.), and Molecular and Integrative Physiology (B.S.K.), University of Illinois at Urbana-Champaign, Urbana, Illinois, 61801
| | - Philip W Shaul
- Center for Pulmonary and Vascular Biology (K.L.C., J.B., M.U., J.U., L.H., C.M., P.W.S.), Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, Texas, 75390; and Departments of Chemistry (S.H.K., J.A.K.), Food Science and Human Nutrition (Z.M.-E.), and Molecular and Integrative Physiology (B.S.K.), University of Illinois at Urbana-Champaign, Urbana, Illinois, 61801
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