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https://www.readbyqxmd.com/read/28920935/spinal-cord-injury-induced-immunodeficiency-is-mediated-by-a-sympathetic-neuroendocrine-adrenal-reflex
#1
Harald Prüss, Andrea Tedeschi, Aude Thiriot, Lydia Lynch, Scott M Loughhead, Susanne Stutte, Irina B Mazo, Marcel A Kopp, Benedikt Brommer, Christian Blex, Laura-Christin Geurtz, Thomas Liebscher, Andreas Niedeggen, Ulrich Dirnagl, Frank Bradke, Magdalena S Volz, Michael J DeVivo, Yuying Chen, Ulrich H von Andrian, Jan M Schwab
Acute spinal cord injury (SCI) causes systemic immunosuppression and life-threatening infections, thought to result from noradrenergic overactivation and excess glucocorticoid release via hypothalamus-pituitary-adrenal axis stimulation. Instead of consecutive hypothalamus-pituitary-adrenal axis activation, we report that acute SCI in mice induced suppression of serum norepinephrine and concomitant increase in cortisol, despite suppressed adrenocorticotropic hormone, indicating primary (adrenal) hypercortisolism...
September 18, 2017: Nature Neuroscience
https://www.readbyqxmd.com/read/28920920/er-associated-degradation-is-required-for-vasopressin-prohormone-processing-and-systemic-water-homeostasis
#2
Guojun Shi, Diane Somlo, Geun Hyang Kim, Cristina Prescianotto-Baschong, Shengyi Sun, Nicole Beuret, Qiaoming Long, Jonas Rutishauser, Peter Arvan, Martin Spiess, Ling Qi
Peptide hormones are crucial regulators of many aspects of human physiology. Mutations that alter these signaling peptides are associated with physiological imbalances that underlie diseases. However, the conformational maturation of peptide hormone precursors (prohormones) in the ER remains largely unexplored. Here, we report that conformational maturation of proAVP, the precursor for the antidiuretic hormone arginine-vasopressin, within the ER requires the ER-associated degradation (ERAD) activity of the Sel1L-Hrd1 protein complex...
September 18, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28904736/beer-polyphenols-and-menopause-effects-and-mechanisms-a-review-of-current-knowledge
#3
REVIEW
Berner Andrée Sandoval-Ramírez, Rosa M Lamuela-Raventós, Ramon Estruch, Gemma Sasot, Monica Doménech, Anna Tresserra-Rimbau
Beer is one of the most frequently consumed fermented beverages in the world, and it has been part of the human diet for thousands of years. Scientific evidence obtained from the development of new techniques of food analysis over the last two decades suggests that polyphenol intake derived from moderate beer consumption may play a positive role in different health outcomes including osteoporosis and cardiovascular risk and the relief of vasomotor symptoms, which are commonly experienced during menopause and are an important reason why women seek medical care during this period; here, we review the current knowledge regarding moderate beer consumption and its possible effects on menopausal symptoms...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28895923/st-producing-e-coli-oppose-carcinogen-induced-colorectal-tumorigenesis-in-mice
#4
Peng Li, Jieru E Lin, Adam E Snook, Scott A Waldman
There is a geographic inequality in the incidence of colorectal cancer, lowest in developing countries, and greatest in developed countries. This disparity suggests an environmental contribution to cancer resistance in endemic populations. Enterotoxigenic bacteria associated with diarrheal disease are prevalent in developing countries, including enterotoxigenic E. coli (ETEC) producing heat-stable enterotoxins (STs). STs are peptides that are structurally homologous to paracrine hormones that regulate the intestinal guanylyl cyclase C (GUCY2C) receptor...
September 12, 2017: Toxins
https://www.readbyqxmd.com/read/28884887/impaired-antioxidant-enzyme-functions-with-increased-lipid-peroxidation-in-epithelial-ovarian-cancer
#5
Aydan Caglayan, Doruk Cevdi Katlan, Zafer Selçuk Tuncer, Kunter Yüce, Hasan Berkan Sayal, Mehmet Coşkun Salman, Belma Kocer-Gumusel
We aimed to identify the possible role of oxidant-antioxidant status in epithelial ovarian cancer (EOC) by measuring (a) antioxidant enzyme (AOE) activities [total superoxide dismutase (SODtotal ), manganese-SOD (Mn-SOD), copper,zinc-SOD (Cu,Zn-SOD), catalase (CAT) and glutathione peroxidase (GPx1)], (b) Mn-SOD protein expression, (c) lipid peroxidation markers [malondialdehyde (MDA), 8-epi-prostaglandin-F2α (8-epi-PGF2α)] and by evaluating the possible correlations between tumor biomarkers, reproductive hormone levels and all measured parameters, comprehensively...
September 8, 2017: IUBMB Life
https://www.readbyqxmd.com/read/28860760/copper-nanoparticle-induced-ovarian-injury-follicular-atresia-apoptosis-and-gene-expression-alterations-in-female-rats
#6
Jing Yang, Shifu Hu, Meng Rao, Lixia Hu, Hui Lei, Yanqing Wu, Yingying Wang, Dandan Ke, Wei Xia, Chang-Hong Zhu
Numerous studies have reported the accumulation of copper nanoparticles (Cu NPs) in organs and the corresponding damage, although whether Cu NPs can be translocated to the ovaries and their ovarian toxicity are still unknown. In this study, three groups of female rats were injected with 3.12, 6.25, or 12.5 mg/kg Cu NPs for 14 consecutive days. The pathological changes, hormone levels, apoptosis and apoptotic proteins, oxidative stress, and gene expression characteristics in the ovaries were then investigated...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28836155/statistical-evaluation-of-trace-metals-tsh-and-t4-in-blood-serum-of-thyroid-disease-patients-in-comparison-with-controls
#7
Sidra Hanif, Asim Ilyas, Munir H Shah
The present study is based on the measurement of concentrations of selected trace metals (Fe, Zn, Cu, Co, Mn, Ni, Cr, Cd and Pb) and thyroid hormones (TSH and T4) in blood serum of hypothyroid and hyperthyroid patients in comparison with healthy donors/controls in order to establish the imbalances of the trace metals in diseased subjects. The serum samples were digested in HNO3-HClO4 mixture and quantification of the metals was performed by flame atomic absorption spectrometry. Average levels of Fe, Ni, Cu, Cr, Pb and TSH were found to be significantly higher (p < 0...
August 23, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28832652/impact-of-post-dialysis-calcium-level-on-ex-vivo-rat-aortic-wall-calcification
#8
Daniel Azpiazu, Emilio González-Parra, Alberto Ortiz, Jesús Egido, Ricardo Villa-Bellosta
OBJECTIVES: Vascular calcification is a frequent complication in chronic haemodialysis patients and is associated with adverse outcomes. Serum calcium and phosphate levels and imbalances in calcification regulators are thought to contribute to the process. In this regard, the dialysate calcium concentration is a modifiable tool for modulating the risk of vascular calcification. We explored pre- and post-dialysis phosphate and calcium concentrations in stable chronic haemodialysis patients treated by dialysis with the KDIGO-suggested 1...
2017: PloS One
https://www.readbyqxmd.com/read/28830524/lipases-and-lipid-droplet-associated-protein-expression-in-subcutaneous-white-adipose-tissue-of-cachectic-patients-with-cancer
#9
Renata Silvério, Fábio S Lira, Lila M Oyama, Cláudia M Oller do Nascimento, José P Otoch, Paulo S M Alcântara, Miguel L Batista, Marília Seelaender
BACKGROUND: Cancer cachexia is a multifactorial metabolic syndrome characterized by marked loss of adipose tissue and skeletal muscle. Fat loss from adipose tissue in cancer cachexia is partly the result of increased lipolysis. Despite the growing amount of studies focused on elucidating the mechanisms through which lipolysis-related proteins regulate the lipolytic process, there are scarce data concerning that profile in the adipose tissue of cancer cachectic patients. Considering its fundamental importance, it was our main purpose to characterize the expression of the lipolysis-related proteins in the white adipose tissue of cachectic cancer patients...
August 22, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/28811691/association-of-prooxidant-antioxidant-balance-with-clinical-and-laboratory-parameters-and-its-relation-to-different-drug-regimens-in-polycystic-ovary-syndrome-women-with-normal-bmi
#10
Niloofar Heshmati, Shoaleh Shahgheibi, Bahram Nikkhoo, Sabrieh Amini, Mohammad Abdi
Polycystic ovarian syndrome is one of the most common hormonally leading cause infertility disorders. The effect of oxidant-antioxidant imbalance on disease progression has been studied in many disorders. The present study was aimed to evaluate prooxidant-antioxidant balance (PAB) in patients with polycystic ovarian syndrome compared to healthy subjects. We also studied the possible effect of treatment with available drugs on serum PAB. In this case-control study 100 polycystic ovary syndrome (PCOS) patients and 100 healthy individuals were enrolled in the study...
July 2017: Indian Journal of Clinical Biochemistry: IJCB
https://www.readbyqxmd.com/read/28807164/effect-of-chinese-herbal-medicine-on-male-infertility
#11
Dan Jiang, Alberto Coscione, Lily Li, Bai-Yun Zeng
Male infertility normally refers a male's inability to cause pregnancy in a fertile female partner after 1 year of unprotected intercourse. Male infertility in recent years has been attracting increasing interest from public due to the evidence in decline in semen quality. There are many factors contributing to the male infertility including abnormal spermatogenesis; reproductive tract anomalies or obstruction; inadequate sexual and ejaculatory functions; and impaired sperm motility, imbalance in hormone levels, and immune system dysfunction...
2017: International Review of Neurobiology
https://www.readbyqxmd.com/read/28805588/weight-in-parkinson-s-disease-phenotypical-significance
#12
Jagdish C Sharma, Anna Lewis
Body weight in Parkinson's disease (PD) is a significant nonmotor feature. Weight homeostasis is a complex physiological process and gets deranged in PD patients leading to changes in weight. While both the low and high body weight have been reported as risk factors for PD, the majority of PD patients have a lower weight and a subset of patients lose weight during the course of the disease, while a small proportion gain weight. A number of clinical parameters such as older age, impaired cognition, severity of disease, and an imbalance of food intake determined by satiety and hunger hormones have been reported to be associated with but not the cause of weight change...
2017: International Review of Neurobiology
https://www.readbyqxmd.com/read/28799261/serum-osmolarity-in-male-patients-with-bipolar-disorder-manic-episode
#13
Tevfik Kalelioglu, Nesrin Karamustafalioglu, Abdullah Genc, Murat Kocabiyik
Imbalance of water and electrolyte homeostasis has been suggested to be associated with the acute episodes of bipolar disorder. In this study we aimed to investigate, for the first time, the serum osmolarity in bipolar disorder manic episode. A total of 68 bipolar inpatients in manic episode and 60 age-gender matched healthy controls were included in the study. Serum osmolarity was calculated from Sodium (Na(+) ), glucose and blood urea nitrogen (BUN) according to formula of (2 × Na(+) ) + (BUN/2.8) + (Glucose/18)...
August 10, 2017: Experimental Physiology
https://www.readbyqxmd.com/read/28799235/dipeptidyl-peptidase-4-serum-activity-and-concentration-are-increased-in-women-with-polycystic-ovary-syndrome
#14
Sindy Blauschmidt, Thomas Greither, Katharina Lampe, Solveig Köller, Petra Kaltwaßer, Hermann M Behre
OBJECTIVE: Polycystic ovary syndrome (PCOS) is a complex disease, the aetiology of which is not well understood. Alterations in potential candidate genes involved in the biosynthesis and metabolism of androgens, folliculogenesis and insulin and glucose metabolism have been suggested as possible aetiologies. Dipeptidyl peptidase-4 (DPP4) plays a key role in glucose homoeostasis and, thus, in the regulation of insulin secretion. The aim of our study was to analyse the DPP4 activity and concentrations in the serum of PCOS and non-PCOS patients and, additionally, study the activation of the DPP4 promoter by androgens in vitro...
August 11, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28780668/new-anabolic-therapies-for-osteoporosis
#15
REVIEW
Salvatore Minisola, Cristiana Cipriani, Marco Occhiuto, Jessica Pepe
Osteoporosis is characterized by low bone mass and qualitative structural abnormalities of bone tissue, leading to increased bone fragility that results in fractures. Pharmacological therapy is aimed at decreasing the risk of fracture, mainly correcting the imbalance between bone resorption and formation at the level of bone remodeling units. Anabolic therapy has the capability to increase bone mass to a greater extent than traditional antiresorptive agents. The only currently available drug licensed is parathyroid hormone 1-34 (teriparatide); new drugs are on the horizon, targeting the stimulation of bone formation, and therefore improving bone mass, structure and ultimately skeletal strength...
August 5, 2017: Internal and Emergency Medicine
https://www.readbyqxmd.com/read/28772209/renin-angiotensin-aldosterone-raas-the-ubiquitous-system-for-homeostasis-and-pathologies
#16
Seema Patel, Abdur Rauf, Haroon Khan, Tareq Abu-Izneid
Renin-angiotensin-aldosterone system (RAAS) is a vital system of human body, as it maintains plasma sodium concentration, arterial blood pressure and extracellular volume. Kidney-secreted renin enzyme acts on its substrate to form angiotensin II, a versatile effector peptide hormone. Every organ is affected by RAAS activation and the resultant hypertension, cell proliferation, inflammation, and fibrosis. The imbalance of renin and angiotensin II can result in an overwhelming number of chronic and acute diseases...
October 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28771762/cognitive-impairment-in-adolescents-and-adults-with-congenital-adrenal-hyperplasia
#17
Leif Karlsson, Anton Gezelius, Anna Nordenström, Tatja Hirvikoski, Svetlana Lajic
OBJECTIVE: Impaired cognition has been reported in patients with congenital adrenal hyperplasia (CAH), although the findings have been conflicting. It has been hypothesized that the major causes of the deficits are prenatal hormonal imbalances and/or excessive glucocorticoid treatment. DESIGN, PATIENTS AND SETTING: This was an observational study comparing cognition in CAH patients (n=55) to control subjects from the general population (n=58), aged 16-33 years. Nine CAH subjects had been treated prenatally with dexamethasone...
August 3, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28771210/coral-derived-natural-marine-compound-gb9-impairs-vascular-development-in-zebrafish
#18
Yi-Chun Song, Bao-Jueng Wu, Chien-Chih Chiu, Chun-Lin Chen, Jun-Qing Zhou, Shuo-Rong Liang, Chang-Yih Duh, Ping-Jyun Sung, Zhi-Hong Wen, Chang-Yi Wu
Blood vessels in vertebrates are established and genetically controlled in an evolutionarily-conserved manner during embryogenesis. Disruption of vascular growth by chemical compounds or environmental hormones may cause developmental defects. This study analyzed the vascular impacts of marine compound GB9 in zebrafish. GB9 was isolated from the marine soft coral Capnella imbricata and had shown anti-neuroinflammatory and anti-nociceptive activities. However, the role of GB9 on vascular development has not been reported...
August 3, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28751268/the-stem-cell-factor-scf-c-kit-system-in-carcinogenesis-of-reproductive-tissues-what-does-the-hormonal-regulation-tell-us
#19
REVIEW
Marília I Figueira, Henrique J Cardoso, Sara Correia, Cláudio J Maia, Sílvia Socorro
The tyrosine kinase receptor c-KIT and its ligand, the stem cell factor (SCF) are expressed in several tissues of male and female reproductive tract, playing an important role in the regulation of basic biological processes. The activation of c-KIT by SCF controls, cell survival and death, cell differentiation and migration. Also, the SCF/c-KIT system has been implicated in carcinogenesis of reproductive tissues due to its altered expression pattern or overactivation in consequence of gain-of-functions mutations...
October 1, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28747541/obesity-a-serious-etiologic-factor-for-male-subfertility-in-modern-society
#20
Yue Liu, Zhide Ding
Obesity, defined as excessive accumulation of fat in adipose tissue, is a metabolic disorder resulting from behavioral, environmental and heritable causes. Such malfunction increases the risk of developing hypertension, diabetes, cardiovascular disease, respiratory problems, osteoarthritis and cancer. Meanwhile, the negative impact of obesity on male reproduction is gradually being recognized. According to clinical investigations and animal experiments, obesity is correlated with reductions in sperm concentration and motility, increases in sperm DNA damage and changes in reproductive hormonal levels...
July 26, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
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