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Gisele Cristiane de Melo Dias, Mônica Cassel, Lázaro Wender Oliveira de Jesus, Sergio Ricardo Batlouni, Maria Inês Borella
Prochilodus lineatus is an important representative of the order Characiformes and a species that offers great advantages to fish farming. Therefore, detailed knowledge of its reproductive biology can be applied to various fields of production and biotechnology. In this study, we have identified testicular germ cells during spermatogenesis and have evaluated the volumetric proportion of the testes occupied by structures of the tubular and intertubular compartments. In addition, the individual volume of type A spermatogonia was measured and used to estimate the mean number of these cells per testis...
October 22, 2016: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
Akihiro Tsuchimoto, Toshiaki Nakano, Shoko Hasegawa, Kosuke Masutani, Yuta Matsukuma, Masahiro Eriguchi, Masaharu Nagata, Takehiro Nishiki, Hidehisa Kitada, Masao Tanaka, Takanari Kitazono, Kazuhiko Tsuruya
BACKGROUND: Lymphangiogenesis occurs in diseased native kidneys and kidney allografts, and correlates with histological injury; however, the clinical significance of lymphatic vessels in kidney allografts is unclear. METHODS: This study retrospectively reviewed 63 kidney transplant patients who underwent protocol biopsies. Lymphatic vessels were identified by immunohistochemical staining for podoplanin, and were classified according to their location as perivascular or interstitial lymphatic vessels...
October 21, 2016: Clinical and Experimental Nephrology
Akihisa Kangawa, Masayoshi Otake, Satoko Enya, Toshinori Yoshida, Masatoshi Shibata
Microminipigs are becoming increasingly attractive alternatives for various experimental applications, such as general toxicology studies, owing to their manageable size. However, there are limited studies on the male reproductive organs of microminipigs, particularly on the histological aspects of sexual maturity. To clarify the development of male reproductive organs, 35 male microminipigs, aged 0 to 12 months, were used in this study. Histological and histomorphological evaluation was performed based on spermatogenic development, measurement of tubular structure in testes and epididymides, and histological progress of accessory glands...
October 21, 2016: Toxicologic Pathology
Pedro H F Gois, Daniele Canale, Rildo A Volpini, Daniela Ferreira, Mariana M Veras, Vinicius Andrade-Oliveira, Niels O S Câmara, Maria H M Shimizu, Antonio C Seguro
BACKGROUND: Acute kidney injury (AKI) is the most severe complication of rhabdomyolysis. Allopurinol (Allo), a xanthine oxidase inhibitor, has been in the spotlight in the last decade due to new therapeutic applications related to its potent antioxidant effect. The aim of this study was to evaluate the efficacy of Allo in the prevention and treatment of rhabdomyolysis-associated AKI. METHODS: Male Wistar rats were divided into five groups: saline control group; prophylactic Allo (300mg/L of drinking water, 7 days); glycerol (50%, 5ml/kg, IM); prophylactic Allo + glycerol; and therapeutic Allo (50mg/Kg, IV, 30minutes after glycerol injection) + glycerol...
October 18, 2016: Free Radical Biology & Medicine
Brigid K Killelea, Anees B Chagpar, Nina R Horowitz, Donald R Lannin
BACKGROUND: Although identification of human epidermal growth factor receptor 2 (Her2) positive breast cancer represents one of the greatest advances over the past 3 decades, it has not been studied extensively on a national level. METHODS: The National Cancer Database is a joint project of the American Cancer Society and the American College of Surgeons and contains data on about 70% of the cancer cases in the United States. Data on Her2 have been collected since 2010 and was used for this study...
July 21, 2016: American Journal of Surgery
Siying Ren, Yongfeng Luo, Hui Chen, David Warburton, Hilaire C Lam, Larry Wang, Ping Chen, Elizabeth P Henske, Wei Shi
The tuberous sclerosis complex (TSC) proteins are critical negative regulators of the mTORC1 pathway. Germline mutations of TSC1 or TSC2 cause TSC, affecting multiple organs, including the kidney and lung, and causing substantial morbidity and mortality. The mechanisms of organ-specific disease in TSC remain incompletely understood, and the impact of TSC inactivation on mesenchymal lineage cells has not been specifically studied. We deleted Tsc2 specifically in mesoderm-derived mesenchymal cells of multiple organs in mice using the Dermo1-Cre driver...
October 18, 2016: American Journal of Pathology
Ryan J Milcarek, Michael J Garrett, Amrish Baskaran, Jeongmin Ahn
Combustion based power generation has been accomplished for many years through a number of heat engine systems. Recently, a move towards small scale power generation and micro combustion as well as development in fuel cell research has created new means of power generation that combine solid oxide fuel cells with open flames and combustion exhaust. Instead of relying upon the heat of combustion, these solid oxide fuel cell systems rely on reforming of the fuel via combustion to generate syngas for electrochemical power generation...
October 2, 2016: Journal of Visualized Experiments: JoVE
Hitesh Soni, Adebowale Adebiyi
Apoptosis of renal tubular and glomerular cells during kidney disease involves activation of Fas ligand (FasL)-dependent death pathway. The significance of FasL in neonates with septic acute kidney injury (AKI) is unresolved, but an increase in renal FasL production, and/or infiltration of circulating FasL into the kidneys may occur following initial septic insult. Here, we examined whether soluble Fas ligand (sFasL) levels are altered during early phase of septic AKI in neonates. Six hours of polymicrobial sepsis elicited by cecal ligation and puncture (CLP) elevated serum C-reactive protein (CRP) (a bacteremia and sepsis marker) concentration in anesthetized and mechanically ventilated neonatal pigs...
October 21, 2016: Renal Failure
Takumi Takeuchi, Mami Hattori-Kato, Yumiko Okuno, Atsushi Kanatani, Masayoshi Zaitsu, Koji Mikami
Various conditions including distal renal tubular acidosis (dRTA) can induce stone formation in the kidney. dRTA is characterized by an impairment of urine acidification in the distal nephron. dRTA is caused by variations in genes functioning in intercalated cells including SLC4A1/AE1/Band3 transcribing two kinds of mRNAs encoding the Cl(-)/HCO3(-) exchanger in erythrocytes and that expressed in α-intercalated cells (kAE1). With the acid-loading test, 25% of urolithiasis patients were diagnosed with incomplete dRTA...
October 21, 2016: Scientific Reports
Chikushi Suruda, Shoji Tsuji, Sohsaku Yamanouchi, Takahisa Kimata, Nguyen Thanh Huan, Hiroyuki Kurosawa, Yoshiaki Hirayama, Hiroyasu Tsukaguchi, Akihiko Saito, Kazunari Kaneko
BACKGROUND: The oculocerebrorenal syndrome of Lowe gene (OCRL) is located on chromosome Xq25-26 and encodes an inositol polyphosphate-5-phosphatase (OCRL-1). Mutations in this gene cause Lowe syndrome (LS) or type 2 Dent disease, of which low-molecular-weight (LMW) proteinuria is a characteristic feature. Megalin is considered to play an important role in the development of renal tubular proteinuria. Two forms of megalin are excreted into the urine: full-length megalin (C-megalin) and megalin ectodomain (A-megalin)...
October 20, 2016: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
Jinyang Shen, Xiaolin Yang, Zhaoqing Meng, Changrun Guo
BACKGROUND: High dietary fructose can cause metabolic syndrome and renal injury. PURPOSE: The effects of protodioscin on metabolic syndrome and renal injury were investigated in mice receiving high-dose fructose. METHODS: Mice received 30% (w/v) fructose in water and standard chow for 6 weeks to induce metabolic syndrome and were divided into four groups to receive carboxymethylcellulose sodium, allopurinol (5 mg/kg) and protodioscin (5 and 10 mg/kg) continuously for 6 weeks, respectively...
November 15, 2016: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
Wenjing Chu, Haiyan Gao, Shifeng Cao, Xiangjun Fang, Hangjun Chen, Shangyue Xiao
The chemical composition and morphology of cuticular wax in mature fruit of nine blueberry cultivars were investigated using gas chromatography-mass spectrometry (GC-MS) and scanning electron microscope (SEM). Triterpenoids and β-diketones were the most prominent compounds, accounting for on average 64.2% and 16.4% of the total wax, respectively. Ursolic or oleanolic acid was identified as the most abundant triterpenoids differing in cultivars. Two β-diketones, hentriacontan-10,12-dione and tritriacontan-12,14-dione, were detected in cuticular wax of blueberry fruits for the first time...
March 15, 2017: Food Chemistry
Juan Rosas-Guzmán, Juan Rosas-Saucedo, Alma R J Romero-García
Type 2 Diabetes Mellitus (T2DM) is a chronic illness with high prevalence in Mexico, Latin-America, and the world and is associated to high morbidity, disability, and mortality rate, especially in developing countries. T2DM physiopathology is very complex; insulin resistance in the muscle, liver, and adipose tissue, a reduction in the production of incretins (mainly GLP-1) in the intestine, increased glucagon synthesis, an insufficient response of insulin generation, and increased glucose reabsorption in the kidney lead all together to an hyperglycemic state, which has been closely associated with the development of micro and macrovascular complications...
August 29, 2016: Reviews on Recent Clinical Trials
Ting-Ting Zhu, Li Wang, Hong-Lian Wang, Yu He, Xin Ma, Jun-Ming Fan
Increasing evidences have shown that Helicobacter pylori (Hp) is a pathogen closely related to extra-gastric disorders. Our previous in vitro studies had demonstrated that Hp infection, at least via cytotoxin-associated gene A protein (CagA), might play an important role in the pathogenesis of IgA nephropathy (IgAN) by stimulating proliferation and ectopic synthesis of aberrantly glycosylated IgA1 of B cells. However, the relevant clinical evidence of IgAN resulted from Hp infection remain to be elucidated...
October 20, 2016: Renal Failure
Byung Ha Chung, Jeong Ho Kim, Bum Soon Choi, Cheol Whee Park, Ji-Il Kim, In Sung Moon, Yong-Soo Kim, Yeong Jin Choi, Eun-Jee Oh, Chul Woo Yang
Background/Aims: This study investigated the clinical significance of detecting anti-human leukocyte antigen-donor specific antibody (HLA-DSA) in kidney transplant recipients (KTRs) requiring indication biopsy owing to allograft dysfunction. Methods: We analyzed the presence of HLA-DSA in 210 KTRs who took indication biopsy. We divided these cases into two groups, HLA-DSA (+) (n = 52) and HLA-DSA (-) (n = 158) group, and compared the clinical characteristics, pathological findings, and clinical outcomes of the two groups...
October 20, 2016: Korean Journal of Internal Medicine
Min Shi, Liang Ma, Li Zhou, Ping Fu
Aristolochic acid nephropathy (AAN) is a progressive kidney disease caused by a Chinese herb containing aristolochic acid. Excessive death of renal tubular epithelial cells (RTECs) characterized the acute phase of AAN. Therapies for acute AAN were limited, such as steroids and angiotensin-receptor blockers (ARBs)/angiotensin-converting enzyme inhibitors (ACEIs). It was interesting that, in acute AAN, female patients showed relative slower progression to renal failure than males. In a previous study, female hormone 17β-estradiol (E2) was found to attenuate renal ischemia-reperfusion injury...
October 18, 2016: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
Tiele Caprioli Machado, Marla Azário Lansarin
The hexavalent chromium, Cr(VI), which is generated in the electroplating process, is toxic to most organisms and potentially harmful to human health. The method generally used for remediation of wastewater containing Cr(VI) employs chemicals with high toxicity. This work proposes an alternative technology for the treatment of these wastewaters, based on photochemical reduction of Cr(VI) by alcohols under radiation, which is environmentally sustainable and economically viable. Initially, a batch reactor in laboratory scale was used to determine the best experimental conditions and its specific reaction rate was calculated...
October 2016: Water Science and Technology: a Journal of the International Association on Water Pollution Research
Xiangbin Song, Zifa Li, Fei Liu, Zhenyong Wang, Lin Wang
Previous study has demonstrated that puerarin (PU) exerts nephroprotective effect against Pb-induced cytotoxicity in primary rat proximal tubular (rPT) cells. Autophagy can protect cells from various cytotoxic stimuli, but its role in the process of PU against Pb-induced nephrotoxicity is still unknown. This study aims to investigate whether PU can alleviate Pb-induced renal damage by recovering autophagy. Data showed that Pb inhibited the autophagic flux, as evidenced by the accumulation of LC3-II and p62 as well as the confocal microscopy analysis of GFP-LC3 puncta and punctate spots of monodansylcadaverine staining, whereas coadministration of PU could restore Pb-induced autophagy inhibition...
October 20, 2016: Journal of Biochemical and Molecular Toxicology
Funda Sarı, Arzu Didem Yalçın, Gizem Esra Genç, Metin Sarıkaya, Atıl Bisgin, Ramazan Çetinkaya, Saadet Gümüşlü
BACKGROUND: Autosomal dominant polycystic kidney disease (ADPKD) is characterized by multiple, large renal cysts and impaired kidney function. Although the reason for the development of kidney cysts is unknown, ADPKD is associated with cell cycle arrest and abundant apoptosis of renal tubular epithelial cells. AIMS: We asked whether serum-soluble TNF-related apoptosis-inducing ligand (sTRAIL) might underlie ADPKD. STUDY DESIGN: Case-control study...
September 2016: Balkan Medical Journal
Kohei Naoki, Hideaki Takada, Kosuke Hishiki, Yoshiharu Nakashima, Koji Yoshimura, Yasunori Nishio, Kenta Ito, Ken Matsuo, Noriko Mori
A 24-year-old woman with a high fever presented at our hospital. She had been diagnosed with Kabuki syndrome at the age of 4 years because she had the typical facial features of the condition ; she had undergone living donor renal transplantation 12 years prior. She was prescribed a course of antibiotics to treat pyelonephritis of the transplanted kidney and the high fever disappeared, but the fever developed again 3 days after the discharge. Abdominal computed tomography revealed a tubular structure of recent onset running from the left dorsal side to the lower part of the bladder...
September 2016: Hinyokika Kiyo. Acta Urologica Japonica
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