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Momordica charantia fruit extract with antioxidant capacity improves the expression of tyrosine-phosphorylated proteins in epididymal fluid of chronic stress rats

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Journal of Integrative Medicine 2022年第6期20卷 534-542页

作者： Supatcharee Arun Therachon Kamollerd Nareelak Tangsrisakda Sudtida Bunsueb Arada Chaiyamoon Alexander Tsang-Hsien Wu Sitthichai Iamsaard Department of Anatomy Faculty of MedicineKhon Kaen UniversityKhon Kaen 40002Thailand Research Institute for Human High Performance and Health Promotion(HHP&HP) Khon Kaen UniversityKhon Kaen 40002Thailand The PhD Program for Translational Medicine College of Medical Science and TechnologyTaipei Medical University and Academia SinicaTaipei 11031TaiwanChina Graduate Institute of Medical Sciences National Defense Medical CenterTaipei 114TaiwanChina

Objective:Although the protective effects of Momordica charantia L.(MC)extract on chemical-induced testicular damage have been studied,the preventive effects of MC extract on functional proteins in the epididymis under chronic stress have never been *** study investigated the protective effects of MC fruit extract on protein secretion,especially tyrosine-phosphorylated proteins,in the epididymis of rats exposed to chronic unpredictable stress(CUS).Methods:Total phenolic compounds(TPC),total flavonoid compounds(TFC)and antioxidant capacities of MC extract were *** male rats were divided into 4 groups:control group,CUS group,and 2groups of CUS that received different doses of MC extract(40 or 80 mg/kg).In treated groups,rats were given MC daily,followed by induction of CUS(1 stressor was randomly applied from a battery of 9 potential stressors)for 60 consecutive *** corticosterone and testosterone levels were analyzed after the end of *** of heat-shock protein 70(HSP-70)and tyrosine-phosphorylated proteins present in the fluid of the head and tail of the epididymis were quantified using Western ***:MC extract contained TPC of(19.005±0.270)mg gallic acid equivalents and TFC of(0.306±0.012)mg catechin equivalents per gram,and had 2,2-diphenyl-1-picrylhydrazyl antioxidant capacity of(4.985±0.086)mg trolox equivalents per gram,radical 50%inhibitory concentration of(2.011±0.008)mg/mL and ferric reducing antioxidant power of(23.697±0.819)μmol Fe(Ⅱ)per *** level in the epididymis was significantly increased,while the corticosterone level was significantly improved in groups treated with MC extract,compared to the CUS ***,an 80 mg/kg dose of MC extract prevented the impairments of HSP-70 and tyrosine-phosphorylated protein expressions in the luminal fluid of the epididymis of CUS ***:MC fruit extract had antioxidant activities and improved the functional proteins secreted from

关键词： Momordica charantia L. Antioxidant activity Epididymis Tyrosine-phosphorylated proteins Chronic unpredictable stress

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Robustness and stability of spin-glass ground states to perturbed interactions

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Physical Review E 2023年第1期107卷 014126-014126页

作者： Vaibhav Mohanty Ard A. Louis Rudolf Peierls Centre for Theoretical Physics University of Oxford Oxford OX1 3NP United Kingdom MD-PhD Program and Program in Health Sciences and Technology Harvard Medical School Boston Massachusetts 02125 USA and Massachusetts Institute of Technology Cambridge Massachusetts 02139 USA

Across many problems in science and engineering, it is important to consider how much the output of a given system changes due to perturbations of the input. Here, we investigate the glassy phase of ±J spin glasses at zero temperature by calculating the robustness of the ground states to flips in the sign of single interactions. For random graphs and the Sherrington-Kirkpatrick model, we find relatively large sets of bond configurations that generate the same ground state. These sets can themselves be analyzed as subgraphs of the interaction domain, and we compute many of their topological properties. In particular, we find that the robustness, equivalent to the average degree, of these subgraphs is much higher than one would expect from a random model. Most notably, it scales in the same logarithmic way with the size of the subgraph as has been found in genotype-phenotype maps for RNA secondary structure folding, protein quaternary structure, gene regulatory networks, as well as for models for genetic programming. The similarity between these disparate systems suggests that this scaling may have a more universal origin.

关键词： Degree correlations Mutation Network structure Scaling laws of complex systems Real world networks Spin glasses

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Overexpression of tyrosine phosphorylated proteins in reproductive tissues of polycystic ovary syndrome rats induced by letrozole

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Asian pacific Journal of Reproduction 2020年第6期9卷 275-282页

作者： Sudtida Bunsueb Supatcharee Arun Arada Chaiyamoon Alexander Tsang-Hsien Wu Sitthichai Iamsaard Department of Anatomy Faculty of MedicineKhon Kaen UniversityKhon Kaen40002Thailand Research Institute for Human High Performance and Health Promotion Khon Kaen University40002Khon KaenThailand The PhD Program for Translational Medicine College of Medical Science and TechnologyTaipei Medical University and Academia SinicaTaipei Graduate Institute of Medical Sciences National Defense Medical CenterTaipei

Objective:To identify the alteration of tyrosine phosphorylated protein expression in rats with polycystic ovary syndrome(PCOS).Methods:Sixteen female Sprague-Dawley rats were divided into the control and letrozole-induced PCOS *** oestrus cycle of rats was performed by vaginal *** hormones and morphology of the ovary,oviduct,and uterus were *** and intensity of androgen receptor and tyrosine phosphorylated proteins of reproductive organs were investigated by Western ***:Various polycysts and increased androgen receptor expression were present in the ovary of the PCOS *** levels of follicle-stimulating hormone and testosteone were significantly higher in the PCOS group while progesterone and estradiol levels were significantly decreased as compared with the control group(P<0.05).Only the size of uterus in the PCOS group was significantly smaller than the control ***,the density of collagen fibers observed in PCOS uterus was greater than the control ***,tyrosine phosphorylated proteins were significantly overexpressed in ovary(52,42,and 28 kDa),oviduct(72,56,42,and 28 kDa),and uterus(53 and 42 kDa)of the PCOS group compared to the control ***:Presence of tyrosine phosphorylated proteins in the ovary,oviduct and uterus suggests that overexpression of tyrosine phosphorylated proteins may be involved in potential mechanism of female infertility especially in PCOS.

关键词： Polycystic ovary syndrome Overexpression Tyrosine phosphorylated proteins Ovary Oviduct Uterus

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Robustness and Stability of Spin Glass Ground States to Perturbed Interactions

arXiv

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arXiv 2020年

作者： Mohanty, Vaibhav Louis, Ard A. Rudolf Peierls Centre for Theoretical Physics University of Oxford OxfordOX1 3NP United Kingdom MD-PhD Program and Program in Health Sciences and Technology Harvard Medical School BostonMA02125 United States Massachusetts Institute of Technology CambridgeMA02139 United States

Across many scientific and engineering disciplines, it is important to consider how much the output of a given system changes due to perturbations of the input. Here, we investigate the glassy phase of ±J spin glasses at zero temperature by calculating the robustness of the ground states to flips in the sign of single interactions. For random graphs and the Sherrington-Kirkpatrick model, we find relatively large sets of bond configurations that generate the same ground state. These sets can themselves be analyzed as subgraphs of the interaction domain, and we compute many of their topological properties. In particular, we find that the robustness, equivalent to the average degree, of these subgraphs is much higher than one would expect from a random model. Most notably, it scales in the same logarithmic way with the size of the subgraph as has been found in genotype-phenotype maps for RNA secondary structure folding, protein quaternary structure, gene regulatory networks, as well as for models for genetic programming. The similarity between these disparate systems suggests that this scaling may have a more universal origin. © 2020, CC BY.

关键词： Ground state

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DEEP SOUTH URBAN AMBIENT PARTICULATE MATTER INDUCES CYTOTOXIC AND INFLAMMATORY RESPONSES IN A549 CELLS

Biomedical Sciences Instrumentation

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Biomedical Sciences Instrumentation 2024年第2期60卷 188-201页

作者： Pacurari, M. Cox, I. Kafoury, R. Komolafe, K. Kodedoye, O. Farah, I. Department of Biology College of Science Engineering and Technology Jackson State University JacksonMS39217 United States Environmental Science PhD Program College of Science Engineering and Technology Jackson State University JacksonMS39217 United States RCMI Center for Environmental Health College of Science Engineering and Technology Jackson State University JacksonMS39217 United States

Exposure to ambient air pollution component particulate matter (PM) in urban environments has been associated with adverse health effects to the exposed population. This study aimed to investigate the cytotoxic and inflammatory responses of lung A549 cells to ambient particulate matter (PM) extracts (EE) collected from a geographical site in south of city limits of Jackson, Mississippi. PM was collected from the site, extracted, and characterized for chemical composition and microscopic analysis using SEM. Following characterization, the EE was used to treat A549 cells, and various cellular responses were assessed. Our SEM analysis of EE indicated the presence of micrometer-sized particles, and elemental analysis indicated the presence of elements such as C, Si, Fe, S, N, P, and Ca. Cell viability decreased in a dose- and timedependent manner following exposure to EE. Inflammatory gene IL-1β, chemokine CCL-18 and MIP-1, and transcription factor NF-кB were upregulated by EE. EE also increased the level of ROS and mitochondria. In conclusion, our data indicates that EE is cytotoxic, inflammatory, and an oxidant to lung cells Also, the findings of the present study highlight the potential health risks associated with exposure to air pollution and inflammatory lung disease. © 2024 IAE All rights reserved.

关键词： Lung cancer

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Hepatitis B surface antigen loss in chronic hepatitis B patients with low-viral-load

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Journal of Gastroenterology and Hepatology (Australia) 2024年第11期39卷 2327-2331页

作者： Jang, Tyng-Yuan Batsaikhan, Batbold Chen, Yo-Chia Dai, Chia-Yen PhD Program of Environmental and Occupational Medicine and Graduate Institute of Clinical Medicine Kaohsiung Medical University Kaohsiung Taiwan Department of Internal Medicine Kaohsiung Medical University Hospital Kaohsiung Medical University Kaohsiung Taiwan Department of Internal Medicine Pingtung Hospital Ministry of Health and Welfare Ping-Tung Taiwan Department of Internal Medicine Institute of Medical Sciences Mongolian National University of Medical Sciences Ulaanbaatar Mongolia Department of Biological Science and Technology National Pingtung University of Science and Technology Pingtung Taiwan College of Professional Studies National Pingtung University of Science and Technology Pingtung Taiwan Drug Development and Value Creation Research Center Kaohsiung Medical University Kaohsiung Taiwan

Background and Aim: Among low viral load (DNA of hepatitis B virus (HBV) was 10 IU/mL vs 2.3 log10 IU/mL;P = 0.003), and higher proportion of prior NAs-treated history. Logistic regression analysis revealed ... 详细信息

Background and Aim: Among low viral load (DNA of hepatitis B virus (HBV) was < 2000 IU/mL), the factor of the loss of hepatitis B surface antigen (HBsAg) remained elusive. Methods: The retrospective study recruited patients with chronic hepatitis B (CHB) who were negative low for hepatitis B e-antigen (HBeAg), had a low viral load, and experienced HBsAg loss during follow-up. CHB patients with low-viral load but without consequent HBsAg loss were also enrolled at the ratio of 1:4. The factors contributing to HBsAg loss were analyzed. Results: A total of 80 patients were recruited for the current study, with a mean age of 63.9 years and 61.3% being male. Among them, 62.5% patients (50/80) were treated with potent nucleoside/nucleotide analogues (NAs) during the follow-up period. Additionally, 12.5% patients (10/80) had a prior history of NAs treatment before enrolment. During the follow-up, HBsAg loss occurred in 17 patients (21.3%). Compared with patients without HBsAg loss, those with HBsAg loss were younger (57.9 years vs 65.5 years;P = 0.01), had lower HBV DNA levels (1.3 log₁₀ IU/mL vs 2.3 log₁₀ IU/mL;P = 0.003), and higher proportion of prior NAs-treated history. Logistic regression analysis revealed that the factors associated with factors associated with HBsAg loss were age < 60 years (OR/CI: 3.95/1.15–13.60, P = 0.03), prior NAs-treated history (OR/CI: 7.59/1.42–40.51, P = 0.01) and current NAs-treated (OR/CI: 0.19/0.05–0.71, P = 0.01). Conclusions: In the study, older age and prior NAs were positively associated with HBsAg loss, and current NAs was negatively associated with HBsAg loss. Additionally, some patients experienced HBsAg loss during the NAs therapy. © 2024 Journal of Gastroenterology and Hepatology Foundation and John Wiley & Sons Australia, Ltd.

关键词： HBeAg HBsAg HBV NAs viral load

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Interactive Effects of a Combination of the HDAC3 and HDAC9 Genes with Diabetes Mellitus on the Risk of Ischemic Stroke

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Thrombosis and Haemostasis 2020年第3期121卷 396-404页

作者： Hung-Yi Chiou Chyi-Huey Bai Li-Ming Lien Chaur-Jong Hu Jiann-Shing Jeng Sung-Chun Tang Huey-Juan Lin Yi-Chen Hsieh School of Public Health College of Public Health Taipei Medical University Taipei Taiwan Master Program in Applied Molecular Epidemiology College of Public Health Taipei Medical University Taipei Taiwan School of Medicine College of Medicine Taipei Medical University Taipei Taiwan Department of Neurology Shin Kong Wu Ho-Su Memorial Hospital Taipei Taiwan Stroke Center Department of Neurology Shuang Ho Hospital Taipei Medical University New Taipei City Taiwan Stroke Center and Department of Neurology National Taiwan University Hospital Taipei Taiwan Department of Emergency Medicine Chi-Mei Medical Center Tainan Taiwan Department of Biotechnology Southern Taiwan University of Science and Technology Tainan Taiwan PhD Program of Neural Regenerative Medicine College of Medical Science and Technology Taipei Medical University Taipei Taiwan PhD Program in Biotechnology Research and Development College of Pharmacy Taipei Medical University Taipei Taiwan

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Probabilistic Genotype-Phenotype Maps Reveal Mutational Robustness of RNA Folding, Spin Glasses, and Quantum Circuits

arXiv

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arXiv 2023年

作者： Sappington, Anna Mohanty, Vaibhav Department of Electrical Engineering and Computer Science Massachusetts Institute of Technology CambridgeMA02139 United States Program for Health Sciences and Technology Harvard Medical School BostonMA02115 United States Massachusetts Institute of Technology CambridgeMA02139 United States Harvard/MIT MD-PhD Program Harvard Medical School BostonMA02115 United States Department of Chemistry and Chemical Biology Harvard University CambridgeMA02138 United States

Recent studies of genotype-phenotype (GP) maps have reported universally enhanced phenotypic robustness to genotype mutations, a feature essential to evolution. Virtually all of these studies make a simplifying assumption that each genotype—represented as a sequence—maps deterministically to a single phenotype, such as a discrete structure. Here, we introduce probabilistic genotype-phenotype (PrGP) maps, where each genotype maps to a vector of phenotype probabilities, as a more realistic and universal language for investigating robustness in a variety of physical, biological, and computational systems. We study three model systems to show that PrGP maps offer a generalized framework which can handle uncertainty emerging from various physical sources: (1) thermal fluctuation in RNA folding, (2) external field disorder in spin glass ground state finding, and (3) superposition and entanglement in quantum circuits, which are realized experimentally on IBM quantum computers. In all three cases, we observe a novel biphasic robustness scaling which is enhanced relative to random expectation for more frequent phenotypes and approaches random expectation for less frequent phenotypes. We derive an analytical theory for the behavior of PrGP robustness, and we demonstrate that the theory is highly predictive of empirical robustness. © 2023, CC BY.

关键词： Quantum computers

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A Deep Learning Classifier Using Sliding Patches For Detection of Mammographical Findings

A Deep Learning Classifier Using Sliding Patches For Detecti...

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Medical Information Processing and Analysis (SIPAIM), International Symposium on

作者： Diego Mellado Marvin Querales Julio Sotelo Eduardo Godoy Fabian Pardo Scarlett Lever Steren Chabert Rodrigo Salas PhD. Program in Health Sciences and Engineering Universidad de Valparaíso Valparaíso Chile School of Medical Technology Universidad de Valparaíso Valparaíso Chile Departamento de Informática UTFSM Santiago Chile PhD. Program in Applied Software Engineering Universidad de Valparaíso Valparaíso Chile School of Medicine Universidad de Valparaíso Valparaíso Chile School of Biomedical Engineering Universidad de Valparaíso Valparaíso Chile

Mammography is known as one of the best forms to screen possible breast cancer in women, and recently deep learning models have been developed to assist the radiologist in the diagnosis. However, their lack of interpretability has become a significant drawback to their extended use in clinical practice. This paper introduces a novel approach for detecting and localising pathological findings in mammography exams through the use of a EfficientNet-based deep learning model. The model is trained using cropped segments of labelled pathological findings from Vindr Mammography Dataset. Achieving an average F1-score of 72.7 %, and reaching on mass and suspicious calcifications an F1-Score of 79.9 % and 84.5 % respectively. Using this classifier we propose a method to visualise from local information the regions of interest where pathological findings could be present on the complete image. Plus, we describe the limitations regarding area coverage of these patches on the model’s capability of generalization and certainty on its predictions, explaining its functionality.

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Perspectives of Indonesian Muslim patients with advanced lung cancer on good death: A qualitative study

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European Journal of Oncology Nursing 2023年 62卷 102251-102251页

作者： Pribadi, Dimas Ria Angga Shih, Whei-Mei Wu, Guey-Hau Lin, Hung-Ru PhD Program School of Nursing National Taipei University of Nursing and Health Sciences Taipei Taiwan Department of Nursing Muhammadiyah University of Surakarta Jawa Tengah Indonesia Department of Gerontology and Health Care Management Chang Gung University of Science and Technology Taoyuan Taiwan School of Nursing National Taipei University of Nursing and Health Sciences Taipei Taiwan

Purpose: Lung cancer is the leading cause of cancer-related death. Patients with advanced lung cancer may experience burdensome distress at the end of life. The concept of good death has been shown to be complex, and continues to be expanded by gaining a better understanding of the cultural views of different populations. This study aimed to explore the perspective of Indonesian Muslims patients with advanced cancer on the concept of good death. Method: A qualitative design comprising in-depth interviews was employed. Seven male and 3 female Muslim patients between ages 36 and 68 and diagnosed with advanced lung cancer were recruited from a teaching hospital in Central Java, Indonesia. Results: Content analysis of the interviews revealed five themes: dying without physical discomfort, dying in religious ways and in a desirable place, dying without emotional discomfort, receiving help and support, and having a good relationship with medical staff. Conclusions: Indonesian Muslim patient with advanced lung cancer have unique perspectives on good death, especially based on the themes of religious ways of dying and support from family. health care providers should be aware that good death is not an individual concern and should thus adopt highly sensitive observation skills to assess the physical and emotional state of patients. These providers must also understand their patients’ preferences and respect their needs, regardless of their own beliefs. © 2022 Elsevier Ltd

关键词： Advanced lung cancer Content analysis Good death Indonesian Muslim patients Interview Qualitative

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