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https://www.readbyqxmd.com/read/29136753/-metabolomics-study-of-tris-2-chloroethyl-phosphate-induced-hepaotoxicity-and-nephrotoxicity-in-sprague-dawley-rats
#1
W Q Yang, F Zhao, L Li, Y J Fang
Objective: To discuss the potential toxic target organ and the toxic effects and mechanisms of tris (2-chloroethyl) phosphate (TCEP) on SD rats. Methods: 40 female SD rats weaning from milk for 21 days, weighted (50±2.3)g were selected as subjects and marked by the weight. They were randomly divided into 4 groups, namely control group, 50 (L), 100 (M) and 250 (H) mg·kg(-1)·d(-1) dose of TCEP group. Each group has 10 rats, and administrated the corresponding dose of drug or vehicle by mouth, quaque die for 60 days...
November 6, 2017: Zhonghua Yu Fang Yi Xue za Zhi [Chinese Journal of Preventive Medicine]
https://www.readbyqxmd.com/read/29102933/mesenchymal-stem-cells-contribute-to-improvement-of-renal-function-in-a-canine-kidney-injury-model
#2
Seung-Jun Lee, Min-Ok Ryu, Min-Soo Seo, Sang-Bum Park, Jin-Ok Ahn, Sei-Myoung Han, Kyung-Sun Kang, Dong-Ha Bhang, Hwa-Young Youn
BACKGROUND/AIM: The kidney excretes waste materials and regulates important metabolic functions, and renal disorders constitute a significant medical problem and can result in fatalities. In the present study, mesenchymal stem cells derived from canine umbilical cord blood (cUCB-MSCs) were isolated and evaluated for their ability to improve renal function in a canine model of acute kidney injury (AKI). MATERIALS AND METHODS: The canine AKI model was developed by i...
November 2017: In Vivo
https://www.readbyqxmd.com/read/29101530/sudden-death-due-to-malignant-hyperthermia-with-a-mutation-of-ryr1-autopsy-morphology-and-genetic-analysis
#3
Wenhe Li, Lin Zhang, Yue Liang, Fang Tong, Yiwu Zhou
Malignant hyperthermia (MH) is an autosomal dominant disorder characterized by abnormal calcium homeostasis in skeletal muscles in response to triggering agents. Autopsy, morphology, and genetic analysis were performed on a 19-year-old man who died rapidly after exposure to sevoflurane during maxillofacial surgery. Muscle spasm around the operation area and limb rigidity occurred and renal tubules full of myoglobin casts were observed by microscopy. Ultrastructural changes in the skeletal muscles and the myocardium were detected by transmission electron microscopy (TEM)...
November 4, 2017: Forensic Science, Medicine, and Pathology
https://www.readbyqxmd.com/read/29072386/-genetic-disorders-of-renal-phosphate-handling
#4
REVIEW
Daniella Magen
Hereditary disorders of renal phosphate handling comprise a diverse group of genetic diseases, usually characterized by excessive urinary phosphate wasting and a negative phosphate balance. In the minority of cases, perturbations of renal phosphate handling are associated with excessive urinary phosphate reabsorption, leading to pathological hyperphosphatemia. Inorganic phosphate is an essential mineral in the human body, playing a crucial role in cellular metabolism and skeletal mineralization. Whole body phosphate balance is maintained by a highly controlled equilibrium between intestinal uptake, skeletal deposition and renal excretion...
October 2017: Harefuah
https://www.readbyqxmd.com/read/29064803/morphological-substantiation-for-acute-immobilization-stress-related-disorders-of-adaptation-mechanisms
#5
Mykhailo M Koptev, Nataliia I Vynnyk
INTRODUCTION: Nowadays, an individual is being constantly accompanied by stresses in his/her everyday life. Stress reactions, produced in the process of evolution, have become the organisms' response to emergency action or pathological factors and are the important link in adaptation process. However, the adverse course of stress reaction can lead to derangement of the adaptation mechanisms in the body and become the element of the pathogenesis of various diseases. THE AIM: The study was aimed at morphological substantiation of derangement of adaptation mechanisms in white Wistar rats caused by the acute immobilization stress...
2017: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29031361/treatment-of-disorders-of-sodium-balance-in-chronic-kidney-disease
#6
REVIEW
David H Ellison
Extracellular fluid volume expansion is nearly universal in patients with CKD. Such volume expansion has features similar to the syndrome of heart failure with preserved ejection fraction, which not only leads to symptoms but can also lead to further organ damage. Unique treatment challenges are present in this patient population, including low glomerular filtration, which limits sodium chloride filtration, intrinsic tubule predisposition to sodium chloride retention, and proteinuria. In addition, pharmacokinetic considerations alter the disposition of diuretics in patients with CKD and nephrotic syndrome...
September 2017: Advances in Chronic Kidney Disease
https://www.readbyqxmd.com/read/29029242/germ-cell-neoplasia-in-situ-and-preserved-fertility-despite-suppressed-gonadotropins-in-a-patient-with-testotoxicosis
#7
Li Juel Mortensen, Martin Blomberg Jensen, Peter Christiansen, Ann-Margrethe Rønholt, Anne Jørgensen, Hanne Frederiksen, John E Nielsen, Anand C Loya, Birgitte Grønkær Toft, Niels E Skakkebæk, Ewa Rajpert-De Meyts, Anders Juul
Context: Testotoxicosis is an autosomal dominant, male-limited disorder. Activating mutations in the Luteinizing Hormone Receptor gene (LHCGR) cause high autonomous testosterone secretion resulting in early-onset peripheral precocious puberty. Little is known about long-term consequences of testotoxicosis. Case Description: We present a rare case of a patient followed for 25 years with two remarkable outcomes; preserved fertility and germ cell neoplasia in situ (GCNIS)...
October 5, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29018970/andersen-s-syndrome-mutants-produce-a-knockdown-of-inwardly-rectifying-k-channel-in-mouse-skeletal-muscle-in-vivo
#8
Dina Simkin, Gaëlle Robin, Serena Giuliano, Ana Vukolic, Pamela Moceri, Nicolas Guy, Kay-Dietrich Wagner, Alain Lacampagne, Bruno Allard, Saïd Bendahhou
Andersen's syndrome (AS) is a rare autosomal disorder that has been defined by the triad of periodic paralysis, cardiac arrhythmia, and developmental anomalies. AS has been directly linked to over 40 different autosomal dominant negative loss-of-function mutations in the KCNJ2 gene, encoding for the tetrameric strong inward rectifying K(+) channel KIR2.1. While KIR2.1 channels have been suggested to contribute to setting the resting membrane potential (RMP) and to control the duration of the action potential (AP) in skeletal and cardiac muscle, the mechanism by which AS mutations produce such complex pathophysiological symptoms is poorly understood...
October 10, 2017: Cell and Tissue Research
https://www.readbyqxmd.com/read/28988284/morphological-and-morphometrical-changes-on-adult-wistar-rat-testis-caused-by-chronic-sodium-arsenite-exposure
#9
Anderson Tadeu de Araújo Ramos, Maria Aparecida Silva Diamante, Celina de Almeida Lamas, Heidi Dolder, Fabrícia de Souza Predes
Arsenic is a contaminant that occurs naturally in the environment, and it is related to several diseases, such as cancer and severe metabolic diseases. Sodium arsenite effects on testes rats are not fully understood regarding morphology and stereology; thus, it becomes necessary to evaluate possible changes in these parameters under low concentrations and simulating occupational exposure. Therefore, the aim of this study was to analyze the morphometrical and stereological changes on rat testis treated with sodium arsenite...
October 7, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28973639/1-2-dichloroethane-induces-reproductive-toxicity-mediated-by-the-crem-creb-signaling-pathway-in-male-nih-swiss-mice
#10
Yating Zhang, Guoliang Li, Yizhou Zhong, Manqi Huang, Jiejiao Wu, Jiewei Zheng, Weifeng Rong, Lihai Zeng, Xiao Yin, Fengrong Lu, Zhiwei Xie, Dandan Xu, Qiming Fan, Xiaohui Jia, Ting Wang, Qiansheng Hu, Wen Chen, Qing Wang, Zhenlie Huang
1,2-Dichloroethane (1,2-DCE) is a widely used chlorinated organic toxicant, but little is known about the reproductive disorders induced by its excessive exposure. To reveal 1,2-DCE-induced male reproductive toxicity and to elucidate the underlying mechanisms, we exposed male NIH Swiss mice to 1,2-DCE by inhalation at 0, 100, 350, and 700 mg/m3 for 6 h/day, for 1 and 4 weeks. Our findings showed a significant decrease in body weight with increased testis/body weight ratio, reduced sperm concentration and induced malformation of spermatozoa, and vacuolar degeneration of germ cells in the seminiferous tubules of testes in mice exposed to 1,2-DCE...
August 30, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/28919595/a-case-of-hepatorenal-syndrome-and-abdominal-compartment-syndrome-with-high-renal-congestion
#11
Hiroteru Kamimura, Takayuki Watanabe, Tomoyuki Sugano, Nao Nakajima, Junji Yokoyama, Kenya Kamimura, Atsunori Tsuchiya, Masaaki Takamura, Hirokazu Kawai, Takashi Kato, Gen Watanabe, Satoshi Yamagiwa, Shuji Terai
BACKGROUND Hepatorenal syndrome (HRS) is a reversible renal impairment that occurs in patients with acute liver failure and advanced liver cirrhosis. HRS is due to a renal vasoconstriction that results from extreme vasodilatation. It is therefore a functional disorder, not associated with structural kidney damage. On the other hand, end-stage liver diseases are often complicated by massive ascites. Massive ascites may cause abdominal compartment syndrome (ACS), which includes impairment of renal blood flow, but there are no reports indicating that kidney lesions caused by ACS may pathologically contribute to end-stage liver diseases...
September 18, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28889026/gnas-mutations-and-heterotopic-ossification
#12
Murat Bastepe
GNAS is a complex imprinted gene encoding the alpha-subunit of the stimulatory heterotrimeric G protein (Gsα). GNAS gives rise to additional gene products that exhibit exclusively maternal or paternal expression, such as XLαs, a large variant of Gsα that shows exclusively paternal expression and is partly identical to the latter. Gsα itself is expressed biallelically in most tissues, although the expression occurs predominantly from the maternal allele in a small set of tissues, such as renal proximal tubules...
September 6, 2017: Bone
https://www.readbyqxmd.com/read/28851737/cholesterol-metabolism-and-cx43-cx46-cx50-gap-junction-protein-expression-and-localisation-in-normal-and-diabetic-and-obese-ob-ob-and-db-db-mouse-testes
#13
R-Marc Pelletier, Casimir D Akpovi, Li Chen, Maria Leiza Vitale
Decreased fertility and birth rates are afflictions arising from metabolic disorders. This study assesses cholesterol metabolism and Cx46, Cx50, Cx43 expression in interstitium- and seminiferous tubule-enriched fractions of leptin-deficient (ob/ob) and leptin receptor-deficient (db/db) mice, two type 2 diabetes and obesity models associated with infertility. Testosterone decreased, glucose, free and esterified cholesterol increased in serum whereas in interstitium, free and esterified cholesterol decreased in ob/ob and db/db...
August 29, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28835935/protective-effect-of-hydroalcoholic-extract-of-teucrium-polium-on-diabetes-induced-testicular-damage-and-serum-testosterone-concentration
#14
Ramin Salimnejad, Ghasem Sazegar, Mohammad Javad Saeedi Borujeni, Seyed Mojtaba Mousavi, Fatemeh Salehi, Fatemeh Ghorbani
BACKGROUND: Diabetes has an adverse effect on spermatogenesis by rising oxidative stress. OBJECTIVE: The aim of this study was to investigate the effect of Teucrium Polium extract administration on spermatogenesis and testicular structure in diabetic rats induced with Streptozotocin. MATERIALS AND METHODS: 32 male Wistar rats were randomly divided into four groups (n=8/each): control group, diabetic group received distilled water, and two experimental groups included diabetic rats treated with 50 and 100 mg/body weigh of Teucrium Polium extract for 6 six weeks...
April 2017: International Journal of Reproductive Biomedicine (Yazd, Iran)
https://www.readbyqxmd.com/read/28835760/testicular-adrenal-rests-tumors-and-testicular-microlithiasis-in-a-brazilian-case-series-with-classic-congenital-adrenal-hyperplasia
#15
Laura Ohana Marques Coelho de Carvalho, Raymundo Miguel Garcia Lora, Claudia Renata Rezende Penna, Izabel Calland Ricarte Beserra
BACKGROUND: Testicular adrenal rest tumors are a benign condition characterized by the presence of remnants of adrenal tissue within the testes that can lead to infertility. Testicular microlithiasis are calculus deposits within the seminiferous tubules. Both are described in congenital adrenal hyperplasia. OBJECTIVES: Describe the frequency of testicular adrenal rest tumors and testicular microlithiasis in a Brazilian case series of patients with classic congenital adrenal hyperplasia and to also relate these changes to disease control and hypothalamic-pituitary-gonadal axis disorders...
January 2017: International Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28770116/cisplatin-induced-nephrotoxicity-and-hiv-associated-nephropathy-mimickers-of-myeloma-like-cast-nephropathy
#16
Muhammad Siddique Khurram, Ahmed Alrajjal, Warda Ibrar, Jacob Edens, Umer Sheikh, Ameer Hamza, Hong Qu
Myeloma cast nephropathy is an obstructing disorder of renal tubules, caused by precipitation of Bence Jones proteins. Myeloma-like cast nephropathy (MLCN) has been reported in the literature to occur in various primary renal and nonrenal diseases. We present a series of three rare cases of cast nephropathy, two of which are HIV patients, and the third patient is receiving cisplatin-based chemotherapy. However, in all three patients plasma cell dyscrasia has been ruled out. A 30-year-old male was admitted to the hospital with facial cellulitis...
2017: Case Reports in Nephrology
https://www.readbyqxmd.com/read/28765879/mass-spectrometric-identification-of-dystrophin-the-protein-product-of-the-duchenne-muscular-dystrophy%C3%A2-gene-in-distinct-muscle-surface-membranes
#17
Sandra Murphy, Kay Ohlendieck
Supramolecular membrane complexes of low abundance are difficult to study by routine bioanalytical techniques. The plasmalemmal complex consisting of sarcoglycans, dystroglycans, dystrobrevins and syntrophins, which is closely associated with the membrane cytoskeletal protein dystrophin, represents such a high‑molecular‑mass protein assembly in skeletal muscles. The almost complete loss of the dystrophin isoform Dp427‑M and concomitant reduction in the dystrophin‑associated glycoprotein complex is the underlying cause of the highly progressive neuromuscular disorder named Duchenne muscular dystrophy...
October 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28763101/relevant-genetic-polymorphisms-and-kidney-expression-of-toll-like-receptor-tlr-5-and-tlr-9-in-lupus-nephritis
#18
N Elloumi, R Fakhfakh, O Abida, L Ayadi, S Marzouk, H Hachicha, M Fourati, Z Bahloul, M N Mhiri, K Kammoun, H Masmoudi
Toll-like receptor (TLR) genetic polymorphisms may modify their expression causing inflammatory disorders and influencing both susceptibility and severity of lupus erythematosus. We aim to determine whether TLR-5 and TLR-9 gene polymorphisms are implicated in the susceptibility to systemic lupus erythematosus (SLE) and lupus nephritis (LN) and to evaluate their expressions and distributions in renal LN patients' biopsies. The frequencies of two SNP in the TLR-9 gene and one in the TLR-5 gene was examined in 106 SLE patients (among them 37 LN patients) and in 200 matched controls by polymerase chain reaction-restriction fragment-length polymorphisms (PCR-RFLP) analysis...
December 2017: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/28757000/characteristics-of-vitamin-b12-deficiency-in-patients-with-plasma-cell-disorders
#19
Caitlyn Braschi, John Doucette, Ajai Chari
BACKGROUND: Although increased rates of vitamin B12 deficiency have been reported in patients with plasma cell dyscrasias (PCDs), no mechanism has been identified. Excess free light chains (FLCs) could disrupt the renal proximal tubule receptors where B12 is reabsorbed. We sought to characterize the relationship between B12 deficiency and PCDs. We hypothesized that rates of B12 deficiency would be highest in patients with PCDs with high FLC burdens. METHODS: We reviewed the electronic medical records of 501 patients who met inclusion criteria (diagnosed PCD with documented serum B12 and FLC levels) to obtain clinical data recorded prior to patients' lowest B12 levels...
July 12, 2017: Clinical Lymphoma, Myeloma & Leukemia
https://www.readbyqxmd.com/read/28752231/parasites-and-pathological-conditions-in-the-edible-oyster-crassostrea-madrasensis-preston-from-the-east-and-west-coasts-of-india
#20
G Suja, V Kripa, K Sunil Mohamed, J Lijo, K G Mini, N K Sanil
A detailed pathological survey was carried out on the commercially important edible oyster, Crassostrea madrasensis (Preston), from two distinct coastal/brackish water ecosystems of south India. Samples were collected twice a year during wet and dry seasons from 2009 to 2012. Bacterial colonies in the form of prokaryotic inclusions, protozoans (Perkinsus beihaiensis, Nematopsis sp. and ciliates Sphenophrya sp. and Stegotricha sp.), metazoans (trematodes, turbellaria, cestodes and crustaceans) and shell parasites (Polydora spp...
July 27, 2017: Parasitology Research
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