1
|
Fu XX, Wei B, Cao HM, Duan R, Deng Y, Lian HW, Zhang YD, Jiang T. Telmisartan Alleviates Alzheimer's Disease-Related Neuropathologies and Cognitive Impairments. J Alzheimers Dis 2023:JAD230133. [PMID: 37355897 DOI: 10.3233/jad-230133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/26/2023]
Abstract
BACKGROUND Alzheimer's disease (AD) is the most common type of neurodegenerative disorder. There are few effective medications for halting the progression of AD. Telmisartan (TEL) is a widely used anti-hypertensive drug approved by FDA. Aside from treating hypertension, TEL has been revealed to provide protection against AD. However, the underlying mechanisms remain unclear. OBJECTIVE To investigate the mechanisms underlying the beneficial effects of TEL against AD. METHODS Eight-month-old APP/PS1 mice were administered with 5 mg/kg TEL once per day for 4 successive months. Nesting test, Y-maze test, and Morris water maze test were employed to assess the cognitive and executive functions. Neuronal and synaptic markers, Aβ pathology, neuroinflammation, and oxidative stress in the brains were measured. Specifically, components involved in amyloid-β (Aβ) production and degradation pathway were analyzed to explore the mechanisms underlying the therapeutic effect of TEL against Aβ pathology. The primary microglia were used to uncover the mechanisms underlying the anti-inflammatory effects of TEL in AD. Additionally, the preventive effect of TEL against AD were investigated using 4-month-old APP/PS1 mice. RESULTS TEL treatment ameliorated cognitive and executive impairments, neuronal and synaptic injury, Aβ pathology, neuroinflammation, and oxidative stress in APP/PS1 mice. The favorable effects of TEL on Aβ pathology were achieved by inhibiting enzymatic Aβ production and facilitating enzymatic and autophagic Aβ degradation. Meanwhile, the anti-inflammatory effects of TEL were accomplished via microglial PPARγ/NLRP3 pathway. The administration of TEL prior to symptom onset prevented AD-related cognitive decline and neuropathologies. CONCLUSION TEL represents a promising agent for AD prevention and treatment.
Collapse
Affiliation(s)
- Xin-Xin Fu
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu Province, PR China
- Department of Neurology, Nanjing First Hospital, China Pharmaceutical University, Nanjing, Jiangsu Province, PR China
| | - Bin Wei
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu Province, PR China
| | - Hai-Ming Cao
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu Province, PR China
| | - Rui Duan
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu Province, PR China
- Department of Neurology, Nanjing First Hospital, China Pharmaceutical University, Nanjing, Jiangsu Province, PR China
| | - Yang Deng
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu Province, PR China
- Department of Neurology, Nanjing First Hospital, China Pharmaceutical University, Nanjing, Jiangsu Province, PR China
| | - Hui-Wen Lian
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu Province, PR China
| | - Ying-Dong Zhang
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu Province, PR China
- Department of Neurology, Nanjing First Hospital, China Pharmaceutical University, Nanjing, Jiangsu Province, PR China
| | - Teng Jiang
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu Province, PR China
| |
Collapse
|
2
|
Cao HM, Yang YZ, Huang BY, Zhang Y, Wu Y, Wan Z, Ma L. A cross-sectional study of the association between heavy metals and pan-cancers associated with sex hormones in NHANES 1999-2018. Environ Sci Pollut Res Int 2023; 30:61005-61017. [PMID: 37046159 DOI: 10.1007/s11356-023-26828-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 04/03/2023] [Indexed: 05/10/2023]
Abstract
Given the complexity of tumorigenesis, numerous studies have also shown that excessive exposure to heavy metals increases the risk of cancers and disrupts the secretion of sex hormones. However, the specific effects of heavy metals on cancers remain to be proven. To confirm the association between heavy metals and pan-cancer sex hormone levels among adults, 94,337 individuals from the National Health and Nutrition Examination Survey were assessed. We examined the associations between pan-cancers associated with sex hormones (ovarian, testicular, breast, and prostate cancers) and heavy metals in blood/urine. The methods (the WQS (weighted quantile sums) and SVYGLM (survey generalized linear model) regressions) were used to evaluate the association between sex hormone-related cancers and each metal category by incorporating covariates. To evaluate the overall effect of heavy metals and detect the dose-response relationship between the prevalence of pan-cancers associated with sex hormones and heavy metals, RCS (restricted cubic splines) were applied. Environmental exposure to heavy metals may be associated with pan-cancers associated with sex hormones in adults in the USA. Prostate cancer was inversely associated with blood cadmium while positively associated with blood lead, urinary tin, and thallium. Breast cancer was inversely associated with blood lead. Ovarian cancer was positively associated with blood cadmium. We also found a non-linear dose-response relationship between pan-cancers associated with sex hormones and heavy metals, which was non-parametric, using RCS models. The OR for breast cancer decreased along with the increase in lead concentration under approximately 20 µg/dl, while the OR for prostate cancer increased between urine thallium levels of approximately 0.17-1.1 ng/ml. Pan-cancers associated with sex hormones are associated with exposure to heavy metals. Considering the design of the NHANES study, further studies need to be conducted on other nationally representative surveys.
Collapse
Affiliation(s)
- Hai-Ming Cao
- The Reproductive Andrology, The Reproductive Medicine Center, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, 518000, People's Republic of China
| | - Ya-Zhu Yang
- The Reproductive Medicine Center, The Seventh Affiliated Hospital of Sun Yat-Sen University, No. 628 Zhenyuan Road, Shenzhen, 518000, People's Republic of China
| | - Bao-Yi Huang
- The Reproductive Medicine Center, The Seventh Affiliated Hospital of Sun Yat-Sen University, No. 628 Zhenyuan Road, Shenzhen, 518000, People's Republic of China
| | - Yunzhe Zhang
- Faculty of Life Sciences and Medicine, King's College London, London, UK
| | - Yu Wu
- The Urology Department, The Second Affiliated Hospital of Bengbu Medical University, Bengbu, 233000, People's Republic of China
| | - Zi Wan
- The Andrology Department, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510080, People's Republic of China
| | - Lin Ma
- The Reproductive Medicine Center, The Seventh Affiliated Hospital of Sun Yat-Sen University, No. 628 Zhenyuan Road, Shenzhen, 518000, People's Republic of China.
| |
Collapse
|
3
|
Zhang YD, Jiang T, Wang SY, Fu XX, Duan R, Wei B, Cao HM, Yan E, Chen SY. The Alzheimer’s disease-associated gene TREML2 modulates inflammation by regulating microglia polarization and NLRP3 inflammasome activation. Neural Regen Res 2023; 18:434-438. [PMID: 35900442 PMCID: PMC9396521 DOI: 10.4103/1673-5374.346468] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Triggering receptor expressed on myeloid cells-like 2 (TREML2) is a newly identified susceptibility gene for Alzheimer’s disease (AD). It encodes a microglial inflammation-associated receptor. To date, the potential role of microglial TREML2 in neuroinflammation in the context of AD remains unclear. In this study, APP/PS1 mice were used to investigate the dynamic changes of TREML2 levels in brain during AD progression. In addition, lipopolysaccharide (LPS) stimulation of primary microglia as well as a lentivirus-mediated TREML2 overexpression and knockdown were employed to explore the role of TREML2 in neuroinflammation in the context of AD. Our results show that TREML2 levels gradually increased in the brains of APP/PS1 mice during disease progression. LPS stimulation of primary microglia led to the release of inflammatory cytokines including interleukin-1β, interleukin-6, and tumor necrosis factor-α in the culture medium. The LPS-induced microglial release of inflammatory cytokines was enhanced by TREML2 overexpression and was attenuated by TREML2 knockdown. LPS increased the levels of microglial M1-type polarization marker inducible nitric oxide synthase. This effect was enhanced by TREML2 overexpression and ameliorated by TREML2 knockdown. Furthermore, the levels of microglial M2-type polarization markers CD206 and ARG1 in the primary microglia were reduced by TREML2 overexpression and elevated by TREML2 knockdown. LPS stimulation increased the levels of NLRP3 in primary microglia. The LPS-induced increase in NLRP3 was further elevated by TREML2 overexpression and alleviated by TREML2 knockdown. In summary, this study provides the first evidence that TREML2 modulates inflammation by regulating microglial polarization and NLRP3 inflammasome activation. These findings reveal the mechanisms by which TREML2 regulates microglial inflammation and suggest that TREML2 inhibition may represent a novel therapeutic strategy for AD.
Collapse
|
4
|
Cao HM, Lian HW, E Y, Duan R, Zhou JS, Chen XL, Jiang T. Clopidogrel with Aspirin versus Aspirin Alone following Intravenous Thrombolysis in Minor Stroke: A 1-Year Follow-Up Study. Brain Sci 2022; 13:brainsci13010020. [PMID: 36672002 PMCID: PMC9856559 DOI: 10.3390/brainsci13010020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 12/19/2022] [Accepted: 12/21/2022] [Indexed: 12/24/2022] Open
Abstract
OBJECTIVE The objective of this study was to investigate the long-term effect of dual antiplatelet therapy (DAPT) using clopidogrel plus aspirin versus aspirin monotherapy after intravenous thrombolysis on functional outcomes in patients with minor stroke. METHODS Patients with acute ischemic stroke with a National Institutes of Health Stroke Scale score ≤ 5 who received either DAPT or aspirin monotherapy following recombinant tissue plasminogen activator intravenous thrombolysis were studied. Data recorded between January 2017 and December 2020 were retrospectively analyzed. The primary efficacy outcome was functional improvement at 1 year, measured by a 1-point decrease across modified Rankin Scale (mRS) scores. Secondary outcomes included complete rehabilitation (mRS = 0), an excellent outcome (mRS = 0-1), and a favorable outcome (mRS = 0-2) at 1 year, as well as the rates of stroke recurrence and all-cause mortality within 1 year. RESULTS A total of 238 patients were included, and follow-up data were available for 205 patients (86.1%). The distribution of 1-year outcomes on the mRS favored DAPT over aspirin monotherapy (adjusted common odds ratio (OR), 2.19; 95% confidence interval (CI), 1.12-4.28; p = 0.022). Patients who received DAPT, compared with those receiving aspirin alone, were more likely to achieve complete rehabilitation (adjusted OR, 2.44; 95% CI, 1.21-4.95; p = 0.013) at the 1-year follow-up. Additionally, the percentages of an excellent outcome and a favorable outcome did not differ, and the rates of stroke recurrence and all-cause mortality were comparable during the 1-year follow-up. CONCLUSIONS Clopidogrel with aspirin following intravenous thrombolysis was associated with improved functional outcome at the 1-year follow-up for patients with minor stroke, and it did not increase the stroke recurrence rate and mortality.
Collapse
Affiliation(s)
- Hai-Ming Cao
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China
| | - Hui-Wen Lian
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China
| | - Yan E
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China
| | - Rui Duan
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China
| | - Jun-Shan Zhou
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China
| | - Xiang-Liang Chen
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China
- Department of Neurology, Jinling Hospital, Nanjing University School of Medicine, Nanjing 210002, China
| | - Teng Jiang
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China
- Correspondence:
| |
Collapse
|
5
|
Wan Z, Cao HM, Yang BC, Gao Y, Ding L, Luo P, Yang GW, Ma L, Deng CH. An alternative surgical technique for varicoceles: a preliminary experience of the microsurgical spermatic (distal end)-inferior or superficial epigastric vein anastomosis in symptomatic varicoceles associated with perineal pain. Asian J Androl 2022; 24:624-627. [PMID: 35665693 PMCID: PMC9809473 DOI: 10.4103/aja202232] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Many therapies are effective in treating varicoceles, including dilation of the pampiniform plexus in males. The most common method of treatment is varicocelectomy. We aimed to assess an alternative technique (microsurgical spermatic [distal end]-superficial or inferior epigastric vein anastomosis) that preserves the normal blood flow pattern for varicocele treatment. We retrospectively analyzed 27 men with varicocele between October 2019 and July 2020. All patients underwent microsurgical spermatic (distal end)-superficial or inferior epigastric vein anastomosis. The prognosis was reviewed retrospectively with an additional survey conducted 3 months after surgery. The mean ± standard deviation of the age was 26.1 ± 7.3 years in patients with microsurgical spermatic (distal end)-superficial or inferior epigastric vein anastomosis. The maximum diameter of the varicocele vein, perineal pain score, sperm density, and forward movement of sperm improved over 3 months after surgery. Microsurgical spermatic (distal end)-superficial or inferior epigastric vein anastomosis is a safe and efficient surgical treatment for varicoceles.
Collapse
Affiliation(s)
- Zi Wan
- The Andrology Department, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Hai-Ming Cao
- The Andrology Department, The Reproductive Medicine Center, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen 518107, China
| | - Bi-Cheng Yang
- The Andrology Department, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Yong Gao
- The Reproductive Medicine Center, The Key Laboratory for Reproductive Medicine of Guangdong Province, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Li Ding
- The Pathology Department, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Peng Luo
- The Reproductive Medicine Center, The Key Laboratory for Reproductive Medicine of Guangdong Province, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Guang-Wen Yang
- The Urology Department, Tongren Municipal People’s Hospital, Tongren 554399, China
| | - Lin Ma
- The Reproductive Medicine Center, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen 518107, China,
Correspondence: Dr. L Ma () or Dr. CH Deng ()
| | - Chun-Hua Deng
- The Andrology Department, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China,
Correspondence: Dr. L Ma () or Dr. CH Deng ()
| |
Collapse
|
6
|
Duan R, Wang SY, Wei B, Deng Y, Fu XX, Gong PY, E Y, Sun XJ, Cao HM, Shi JQ, Jiang T, Zhang YD. Angiotensin-(1-7) Analogue AVE0991 Modulates Astrocyte-Mediated Neuroinflammation via lncRNA SNHG14/miR-223-3p/NLRP3 Pathway and Offers Neuroprotection in a Transgenic Mouse Model of Alzheimer's Disease. J Inflamm Res 2021; 14:7007-7019. [PMID: 34955647 PMCID: PMC8694579 DOI: 10.2147/jir.s343575] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Accepted: 12/08/2021] [Indexed: 12/16/2022] Open
Abstract
Objective Emerging evidence suggests that brain angiotensin-(1–7) (Ang-(1–7)) deficiency contributes to the pathogenesis of Alzheimer’s disease (AD). Meanwhile, our previous studies revealed that restoration of brain Ang-(1–7) levels provided neuroprotection by inhibition of inflammatory responses during AD progress. However, the potential molecular mechanisms by which Ang-(1–7) modulates neuroinflammation remain unclear. Materials and Methods APP/PS1 mice were injected intraperitoneally with AVE0991 (a nonpeptide analogue of Ang-(1–7)) once a day for 30 consecutive days. Cognitive functions, neuronal and synaptic integrity, and inflammation-related markers were assessed. Since astrocytes played a crucial role in AD-related neuroinflammation whilst long noncoding RNAs (lncRNAs) were reported to participate in modulating inflammatory responses, astrocytes of APP/PS1 mice were isolated for high-throughput lncRNA sequencing to identify the most differentially expressed lncRNA following AVE0991 treatment. Afterward, the downstream pathways of this lncRNA in the anti-inflammatory action of AVE0991 were investigated using primary astrocytes. Results AVE0991 rescued spatial cognitive impairments and alleviated neuronal and synaptic damage in APP/PS1 mice. The levels of Aβ1-42 in the brain of APP/PS1 mice were not affected by AVE0991. By employing high-throughput lncRNA sequencing, our in vitro study demonstrated for the first time that AVE0991 suppressed astrocytic NLRP3 inflammasome-mediated neuroinflammation via a lncRNA SNHG14-dependent manner. SNHG14 acted as a sponge of miR-223-3p while NLRP3 represented a direct target of miR-223-3p in astrocytes. In addition, miR-223-3p participated in the AVE0991-induced suppression of astrocytic NLRP3 inflammasome. Conclusion Our results suggest that Ang-(1–7) analogue AVE0991 inhibits astrocyte-mediated neuroinflammation via SNHG14/miR-223-3p/NLRP3 pathway and offers neuroprotection in APP/PS1 mice. These findings reveal the underlying mechanisms by which Ang-(1–7) inhibits neuroinflammation under AD condition and uncover the potential of its nonpeptide analogue AVE0991 in AD treatment.
Collapse
Affiliation(s)
- Rui Duan
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, People's Republic of China
| | - Si-Yu Wang
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, People's Republic of China
| | - Bin Wei
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, People's Republic of China
| | - Yang Deng
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 211198, People's Republic of China
| | - Xin-Xin Fu
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 211198, People's Republic of China
| | - Peng-Yu Gong
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, People's Republic of China
| | - Yan E
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, People's Republic of China
| | - Xiao-Jin Sun
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 211198, People's Republic of China
| | - Hai-Ming Cao
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, People's Republic of China
| | - Jian-Quan Shi
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, People's Republic of China
| | - Teng Jiang
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, People's Republic of China
| | - Ying-Dong Zhang
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, People's Republic of China.,School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 211198, People's Republic of China
| |
Collapse
|
7
|
Cao HM, Wan Z, Gao Y, Zhang JL, Zhang Y, Xiao HP, Tu XA, Sun XZ, Deng CH. Psychological burden prediction based on demographic variables among infertile men with sexual dysfunction. Asian J Androl 2020; 21:156-162. [PMID: 30460932 PMCID: PMC6413542 DOI: 10.4103/aja.aja_86_18] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
There has been increasing interest in the psycho-socio-relational and sexual disorders of infertility, as the risk of psychological burden among infertile men with sexual dysfunctions is significant. The purpose of this study was to develop and to validate a predictive model to estimate individual psychological burden among infertile men with sexual dysfunction and study the association between them. Comprehensive data were collected for infertile men (n = 480) who sought treatment for infertility in a reproductive medicine center between June 2012 and December 2013. Using independent predictors of psychological burden from the least absolute shrinkage and selection operator, univariable and multivariable analyses were developed into two models. Predictive accuracy was compared between the models. We explored the association between sexual dysfunction and psychological burden. A total of 480 patients were analyzed using 10-fold cross-validation. Independent predictors of psychological burden were incorporated into a model to measure anxiety (corrected-area under curve (AUC): 77.3%) and a model to measure depression (corrected-AUC: 70.2%). Anxiety and depression were both associated with erectile dysfunction (P < 0.05), with anxiety demonstrating the strongest association. Only anxiety was associated with premature ejaculation (P < 0.05). Premature ejaculation was not found to be associated with depression (P > 0.05). Predictive models for psychological burden among infertile men with sexual dysfunction are presented, and we found that there is an association between psychological burden and sexual dysfunction. According to the models, proper counseling and treatment of sexual dysfunction in infertile men may reduce the psychological burden, help attain natural pregnancy, and improve the quality of life.
Collapse
Affiliation(s)
- Hai-Ming Cao
- Department of Urology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China.,Department of Urology, The Second Affiliated Hospital of Bengbu Medical College, Bengbu 233000, China
| | - Zi Wan
- Department of Urology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Yong Gao
- Reproductive Medicine Center, The Key Laboratory for Reproductive Medicine of Guangdong Province, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Jun-Long Zhang
- Department of Urology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Yan Zhang
- Department of Cardiovascular, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Hai-Peng Xiao
- Department of Endocrinology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Xiang-An Tu
- Department of Urology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Xiang-Zhou Sun
- Department of Urology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Chun-Hua Deng
- Department of Andrology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| |
Collapse
|
8
|
Cao HM, Wan Z, Wu Y, Wang HY, Guan C. Development and internal validation of a novel model and markers to identify the candidates for lymph node metastasis in patients with prostate cancer. Medicine (Baltimore) 2019; 98:e16534. [PMID: 31348270 PMCID: PMC6708735 DOI: 10.1097/md.0000000000016534] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND High-grade prostate cancer (PCa) has a poor prognosis, and up to 15% of patients worldwide experience lymph node invasion (LNI). To further improve the prediction lymph node invasion in prostate cancer, we adopted risk scores of the genes expression based on the nomogram in guidelines. METHODS We analyzed clinical data from 320 PCa patients from the Cancer Genome Atlas database. Weighted gene coexpression network analysis was used to identify the genes that were significantly associated with LNI in PCa (n = 390). Analyses using the Gene Ontology and Kyoto Encyclopedia of Genes and Genomes databases were performed to identify the activated signaling pathways. Univariate and multivariate logistic regression analyses were performed to identify the independent risk factors for the presence of LNI. RESULTS We found that patients with actual LNI and predicted LNI had the worst survival outcomes. The 7 most significant genes (CTNNAL1, ENSA, MAP6D1, MBD4, PRCC, SF3B2, TREML1) were selected for further analysis. Pathways in the cell cycle, DNA replication, oocyte meiosis, and 9 other pathways were dramatically activated during LNI in PCa. Multivariate analyses identified that the risk score (odds ratio [OR] = 1.05 for 1% increase, 95% confidence interval [CI]: 1.04-1.07, P < .001), serum PSA level, clinical stage, primary biopsy Gleason grade (OR = 2.52 for a grade increase, 95% CI: 1.27-5.22, P = .096), and secondary biopsy Gleason grade were independent predictors of LNI. A nomogram built using these predictive variables showed good calibration and a net clinical benefit, with an area under the curve (AUC) value of 90.2%. CONCLUSIONS In clinical practice, the application of our nomogram might contribute significantly to the selection of patients who are good candidates for surgery with extended pelvic lymph node dissection.
Collapse
Affiliation(s)
- Hai-Ming Cao
- Department of Urology, The Second Affiliation Hospital, Bengbu Medical College, Bengbu, Anhui
| | - Zi Wan
- Department of Urology, The First Affiliation Hospital, Sun Yat-Sen University, Guangzhou, Guangdong
| | - Yu Wu
- Department of Urology, The Second Affiliation Hospital, Bengbu Medical College, Bengbu, Anhui
| | - Hong-Yang Wang
- Department of Urology, The First Affiliation Hospital, Qingdao University, Qingdao, Shandong, China
| | - Chao Guan
- Department of Urology, The Second Affiliation Hospital, Bengbu Medical College, Bengbu, Anhui
| |
Collapse
|
9
|
Abstract
Objective To discuss the relevance of heparanase and syndecan-1 and regulation of the heparanase-syndecan1 axis in the invasiveness of gallbladder carcinoma cells. Methods 1. Generation of a gallbladder cancer cell line overexpressing a heparanase (GBD-SD) transgene. 2. Western blot analysis of syndecan-1 levels of GBD-SD and control gallbladder carcinoma (GBC-SD) cells. 3. RT-PCR analysis of syndecan-1 mRNA levels of GBD-SD and GBC-SD. 4. Evaluation of invasion and migration of GBD-SD and GBC-SD cells. Results 1. Heparanase expression in GBD-SD cells was significantly increased. 2. The syndecan-1 mRNA level of GBD-SD cells was significantly lower compared with that of GBC-SD cells. 3. The syndecan-1 DNA copy number in GBD-SD cells was significantly lower compared with that of GBC-SD. 4. The invasiveness and migration of GBD-SD cells were significantly higher compared with GBC-SD cells. Conclusions 1. The expression of heparanase negatively correlated with that of syndecan-1 in a gallbladder carcinoma cell line. 2. The expression of heparanase and syndecan-1 in gallbladder carcinomas negatively correlated, similar to other tumours. 3. The heparanase/syndecan1 axis in gallbladder carcinoma plays an important role in the invasion and metastasis, thus providing a new therapeutic target. 4. Further research is required to identify the detailed mechanisms.
Collapse
Affiliation(s)
- Hao Jin
- 1 Zhuhai People's Hospital, Zhuhai, China
| | | | - Song Yang
- 2 The First Affiliated Hospital of Bengbu Medical College, Bengbu, China
| | | |
Collapse
|
10
|
Wang HY, Liu LS, Cao HM, Li J, Deng RH, Fu Q, Zhang HX, Fei JG, Wang CX. Hemodynamics in Transplant Renal Artery Stenosis and its Alteration after Stent Implantation Based on a Patient-specific Computational Fluid Dynamics Model. Chin Med J (Engl) 2017; 130:23-31. [PMID: 28051019 PMCID: PMC5221107 DOI: 10.4103/0366-6999.196569] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Background: Accumulating studies on computational fluid dynamics (CFD) support the involvement of hemodynamic factors in artery stenosis. Based on a patient-specific CFD model, the present study aimed to investigate the hemodynamic characteristics of transplant renal artery stenosis (TRAS) and its alteration after stent treatment. Methods: Computed tomography angiography (CTA) data of kidney transplant recipients in a single transplant center from April 2013 to November 2014 were reviewed. The three-dimensional geometry of transplant renal artery (TRA) was reconstructed from the qualified CTA images and categorized into three groups: the normal, stenotic, and stented groups. Hemodynamic parameters including pressure distribution, velocity, wall shear stress (WSS), and mass flow rate (MFR) were extracted. The data of hemodynamic parameters were expressed as median (interquartile range), and Mann–Whitney U-test was used for analysis. Results: Totally, 6 normal, 12 stenotic, and 6 stented TRAs were included in the analysis. TRAS presented nonuniform pressure distribution, adverse pressure gradient across stenosis throat, flow vortex, and a separation zone at downstream stenosis. Stenotic arteries had higher maximal velocity and maximal WSS (2.94 [2.14, 3.30] vs. 1.06 [0.89, 1.15] m/s, 256.5 [149.8, 349.4] vs. 41.7 [37.8, 45.3] Pa at end diastole, P = 0.001; 3.25 [2.67, 3.56] vs. 1.65 [1.18, 1.72] m/s, 281.3 [184.3, 364.7] vs. 65.8 [61.2, 71.9] Pa at peak systole, P = 0.001) and lower minimal WSS and MFRs (0.07 [0.03, 0.13] vs. 0.52 [0.45, 0.67] Pa, 1.5 [1.0, 3.0] vs. 11.0 [8.0, 11.3] g/s at end diastole, P = 0.001; 0.08 [0.03, 0.19] vs. 0.70 [0.60, 0.81] Pa, 2.0 [1.3, 3.3] vs. 16.5 [13.0, 20.3] g/s at peak systole, P = 0.001) as compared to normal arteries. Stent implantation ameliorated all the alterations of the above hemodynamic factors except low WSS. Conclusions: Hemodynamic factors were significantly changed in severe TRAS. Stent implantation can restore or ameliorate deleterious change of hemodynamic factors except low WSS at stent regions.
Collapse
Affiliation(s)
- Hong-Yang Wang
- Organ Transplant Center, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510080, China
| | - Long-Shan Liu
- Organ Transplant Center, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510080, China
| | - Hai-Ming Cao
- Organ Transplant Center, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510080, China
| | - Jun Li
- Organ Transplant Center, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510080, China
| | - Rong-Hai Deng
- Organ Transplant Center, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510080, China
| | - Qian Fu
- Organ Transplant Center, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510080, China
| | - Huan-Xi Zhang
- Organ Transplant Center, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510080, China
| | - Ji-Guang Fei
- Organ Transplant Center, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510080, China
| | - Chang-Xi Wang
- Organ Transplant Center, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510080; Guangdong Provincial Key Laboratory on Organ Donation and Transplant Immunology, Guangzhou, Guangdong 510080, China
| |
Collapse
|
11
|
Cao HM, Wang ZY, Zhang GW, Liu CF, Pan CM, Zhao SX, Song ZY, Song HD, Zhang L. Identification of a locus (DSP2) for disseminated superficial porokeratosis at chromosome 12q21.2-24.21. Clin Exp Dermatol 2012; 37:672-6. [PMID: 22680787 DOI: 10.1111/j.1365-2230.2012.04380.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Porokeratosis is a rare disorder of epidermal keratinization that is characterized by the presence of a border called the cornoid lamella. Disseminated superficial porokeratosis (DSP) is a subtype of porokeratosis, which is inherited as an autosomal trait. The first locus for DSP was localized to chromosome 18p11.3, but no causative gene has yet been identified. In this study, we recruited and analysed a large six-generation Chinese family with autosomal dominant DSP. The genome-wide screening identified a maximum two-point LOD score of 3.06 at θ = 0.00 with the microsatellite marker D12S78. Fine mapping and haplotype analysis defined a critical region of 38 Mb between D12S326 and D12S79 on chromosome 12q21.2-24.21, which is a probable second locus identified for DSP (DSP2). We sequenced 50 candidate genes in this region, but no causative mutation was found. This study provides a map location for isolation of a gene causing DSP.
Collapse
Affiliation(s)
- H M Cao
- Ruijin Hospital, State Key Laboratory of Medical Genomics, Molecular Medicine Center, Shanghai Institute of Endocrinology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | | | | | | | | | | | | | | | | |
Collapse
|
12
|
Liu B, Cao HM, Li GY, Liu M, Feng J, Li J, Wang Q. Effects of Rosuvastatin versus Atorvastatin on Rho-Associated Coiled-Coil Containing Protein Kinase Activity and Endothelial Function in Patients with Atherosclerosis. J Int Med Res 2011; 39:2314-22. [PMID: 22289549 DOI: 10.1177/147323001103900630] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
This randomized, double-blind, parallel-design study compared the short-term effects of rosuvastatin and atorvastatin on serum lipids and markers of inflammation and endothelial function in patients with stable atherosclerosis. Patients received either 10 mg/day rosuvastatin ( n = 18) or 20 mg/day atorvastatin ( n = 18), orally, for 4 weeks. Serum lipids, high-sensitivity C-reactive protein (hsCRP), Rho-associated coiled-coil containing protein kinase (ROCK) activity and flow-mediated dilation (FMD) of the brachial artery were assessed before and after therapy. Both statins produced significant reductions in total cholesterol, low-density lipoprotein cholesterol (LDL-C), triglyceride and hsCRP levels, and significant increases in FMD. Both statins significantly reduced ROCK activity and inhibition was significantly greater with rosuvastatin. There was no correlation between ROCK activity and LDL-C level in either group. There was a significant correlation between ROCK activity and FMD for both statins, but no correlations between FMD and LDL-C or hsCRP levels. Short-term treatment with either rosuvastatin or atorvastatin inhibits ROCK activity independent of cholesterol reduction, and improves endothelium dysfunction in patients with atherosclerosis.
Collapse
Affiliation(s)
- B Liu
- Department of Cardiology, Tongji Hospital, Tongji University School of Medicine, Shanghai, China
| | - HM Cao
- Department of Cardiology, Wuxi People's Hospital Affiliated to Nanjing Medical University, Wuxi, Jiangsu Province, China
| | - GY Li
- Department of Oncology, Tongji Hospital, Tongji University School of Medicine, Shanghai, China
| | - M Liu
- Medical Department of Management, Urumuqi General Hospital of LanZhou Military Command, Urumuqi, China
| | - J Feng
- Department of Cardiology, Wuxi People's Hospital Affiliated to Nanjing Medical University, Wuxi, Jiangsu Province, China
| | - J Li
- Department of Cardiology, Wuxi People's Hospital Affiliated to Nanjing Medical University, Wuxi, Jiangsu Province, China
| | - Q Wang
- Department of Cardiology, Wuxi People's Hospital Affiliated to Nanjing Medical University, Wuxi, Jiangsu Province, China
| |
Collapse
|
13
|
Chen JN, Li Y, Li YL, Qin HY, Li RY, Cao HM, Xie Y, Mao YM. [Investigation of genotyping HLA DRB1 gene using oligoneucleotide arrays]. Yi Chuan Xue Bao 2001; 28:887-94. [PMID: 11695259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/17/2023]
Abstract
We have developed a method performed on an oligoneucleotide array for genotyping HLA DRB1. The routine method Phenol-chloroform was used to extract genome DNA of standard samples. A pair of sense and antisense primers were designed according to the sequence of DRB1 exon2, then the primers and the Cy5-dCTP were used in the following PCR, thus the PCR products were labelled with Cy5. Many genotyping probes which were immobilized on the DNA Microarray made by APS-PDC method were designed. The labelled PCR products were hybridized with them, the signals were sanned by sanner and analyzed by Imagene software. We have genotyped 33 standard samples which have 12 DRB1 subtypes. The experimental results showed that the arrays we made and the method we used are accurate and sensitive. This proved that the DNA Microarray technique is good for DRB1 genotyping. Compared with PCR-SSP and PCR-SSO methods, the genotyping chip method is more intuitionistic and has the advantage of integration.
Collapse
Affiliation(s)
- J N Chen
- National Key Laboratory of Genetic Engineering, Institute of Genetics of Fudan University, Shanghai 200433, China
| | | | | | | | | | | | | | | |
Collapse
|
14
|
Cao HM, Zhang XD, Lou RC. [Study of concurrent reconstruction of posterior wall of vagina with pedicled muscular flap of uterus after resection of rectum carcinoma]. Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 1999; 13:88-90. [PMID: 12080775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
OBJECTIVE To investigate the reconstructional method of posterior wall of vagina after the resection of rectum carcinoma. METHODS From August 1991 to March 1996, 10 patients with rectum carcinoma were adopted in this study, among them, there were 4 cases belong to B stage of Dukas, and 6 cases belong to C stage of Dukes. In operation, rectum carcinoma and posterior wall of vagina were resected, and concurrent reconstruction was finished by using pedicled muscular flap of uterus. RESULTS The effect of operation were satisfactory except one case who was failed because of insufficient blood supply of the flap. Followed-up for 3-6 months, the posterior wall of vagina healed in 7 cases, the width of vagina was 2-3 fingers and the depth was 5-6 cm. CONCLUSION Reconstruction of the posterior wall of vagina with pedicled muscular flap of uterus was available in clinic. For its simplicity and feasibility, it's suitable for the resection of rectum carcinoma in which the posterior wall of vagina was infiltrated.
Collapse
Affiliation(s)
- H M Cao
- Department of Colonic Cancer, Zhejiang Cancer Hospital, Hangzhon, Zhejiang, P. R. China 310022
| | | | | |
Collapse
|
15
|
Liu ST, Chang WZ, Cao HM, Hu HL, Chen ZH, Ni FD, Lu HF, Hong GF. A HU-like protein binds to specific sites within nod promoters of Rhizobium leguminosarum. J Biol Chem 1998; 273:20568-74. [PMID: 9685414 DOI: 10.1074/jbc.273.32.20568] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Nodulation genes (nod) of rhizobia are essential for establishment of its symbiosis with specific legume hosts and are usually located on the Sym(biosis) megaplasmid. In this work we identified a new Sym plasmid independent protein in Rhizobium leguminosarum, Px, by its ability to bind to nod promoters and induce DNA bending. Depending upon its concentrations relative to DNA templates, Px could either stimulate or inhibit in vitro transcription of the major regulatory nodulation gene nodD. This may result from its property to bind to specific sites within nod promoters at lower concentration or in the presence of competitor calf thymus DNA but nonspecifically associate with DNA at higher levels or in the absence of competitors. Its binding sites within nodD and nodF promoters were determined by DNase I footprinting but showed no sequence consensus. N-terminal sequencing and Western blot revealed that Px belongs to the HU class of prokaryotic histone-like proteins. Its binding feature and functioning mechanism were discussed in the light of this discovery.
Collapse
Affiliation(s)
- S T Liu
- Shanghai Institute of Biochemistry, Chinese Academy of Sciences, 320 Yue-Yang Road, Shanghai 200031, China
| | | | | | | | | | | | | | | |
Collapse
|
16
|
Cao HM, Pan XQ. Effect of ketotifen on the ultrastructure of the erythrocytic stages of Plasmodium yoelii. Southeast Asian J Trop Med Public Health 1990; 21:545-51. [PMID: 2098914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The effect on the morphology of Plasmodium yoelii of ketotifen treatment was different from that of chloroquine and other antimalarial drugs. Following administration of a low dosage of ketotifen, the parasite first developed a multilamellate pellicular complex which resembled a medullary sheath and then developed vacuoles and cavitations. The development of large multilamellate whorls consisting of a pellicular structure enclosing cytoplasm was the typical change which occurred.
Collapse
Affiliation(s)
- H M Cao
- Department of Biology, East China Normal University, Shanghai
| | | |
Collapse
|
17
|
Shen HC, Huang MY, Lou RC, Cao HM, Lü GQ, Zhang XD. [Rectal examination for extent of perirectal infiltration in rectal carcinoma]. Zhonghua Zhong Liu Za Zhi 1988; 10:65-6. [PMID: 3416702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
From 1983 to 1985, 214 patients with rectal carcinoma were assessed for the conformation rate of the rectal examination to the gross findings of the extent of perirectal infiltration in the resected specimens. It was found that the conventional classification of the extent of rectal infiltration by rectal examination, 1/4, 1/3, 2/4, 3/4 and 4/4 of the circumference, had only a conformation rate of 32.7% to the gross findings. According to the classification of 1/4 or less and more, the conformation rate could reach 93%. It was also found that the extent of perirectal infiltration, being closely related to the regional lymph node metastasis and the depth of invasion, was only demonstrated by this latter classification, which was not shown in the conventional classification. Hence, it is suggested that the rectal examination implying the extent of perirectal infiltration by simply classified into two groups: equal to or less than 1/4 and more than 1/4 of the circumference of the rectal wall.
Collapse
Affiliation(s)
- H C Shen
- Zhejiang Cancer Hospital, Hangzhou
| | | | | | | | | | | |
Collapse
|
18
|
Cao HM, Wang YF, Long S. A study of ultrastructure of egg shell of Schistosoma japonicum. I. Transmission electron microscopic observation of S. japonicum egg. Ann Parasitol Hum Comp 1982; 57:345-52. [PMID: 7187198 DOI: 10.1051/parasite/1982574345] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Ultrathin sections of egg shell of S. Japonicum were observed. The micropores and network of microcanals were first reported in egg shell of S. japonicum. Both the micropores and microcanals are lined by a membrane being continous with the inner layer of egg shell and filled with materials coming from inside of the egg. As in the egg of S. mansoni, the possibility of micropores and microcanals that may play an important role as natural channels in secreting materials such as soluble antigens and histolytic enzymes... etc., is discussed.
Collapse
|