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Oxidative stress and testosterone

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https://www.readbyqxmd.com/read/28912924/relationship-between-serum-total-testosterone-concentration-and-augmentation-index-at-radial-artery-in-japanese-postmenopausal-patients
#1
Takashi Hitsumoto
BACKGROUND: The significance of testosterone as a risk factor for cardiovascular disease (CVD) in females is controversial. This cross-sectional study aimed to elucidate the relationship between serum total testosterone concentration (T-T) and augmentation index at the radial artery (r-AIx) as a marker of arterial function in Japanese postmenopausal patients. METHODS: A total of 447 postmenopausal patients with traditional cardiovascular risk factors and/or a history of CVD (age (mean ± standard deviation (SD)), 73 ± 10 years) were enrolled...
October 2017: Journal of Clinical Medicine Research
https://www.readbyqxmd.com/read/28911168/developmental-programming-impact-of-gestational-steroid-and-metabolic-milieus-on-mediators-of-insulin-sensitivity-in-prenatal-testosterone-treated-female-sheep
#2
Muraly Puttabyatappa, Victoria Andriessen, Makeda Mesquitta, Lixia Zeng, Subramaniam Pennathur, Vasantha Padmanabhan
Prenatal testosterone (T) excess in sheep leads to peripheral insulin resistance (IR), reduced adipocyte size, and tissue-specific changes, with liver and muscle but not adipose tissue being insulin resistant. To determine the basis for the tissue-specific differences in insulin sensitivity, we assessed changes in negative (inflammation, oxidative stress, and lipotoxicity) and positive mediators (adiponectin and antioxidants) of insulin sensitivity in the liver, muscle, and adipose tissues of control and prenatal T-treated sheep...
September 1, 2017: Endocrinology
https://www.readbyqxmd.com/read/28904557/ginger-ingredients-alleviate-diabetic-prostatic-complications-effect-on-oxidative-stress-and-fibrosis
#3
Basma G Eid, Hala Mosli, Atif Hasan, Hany M El-Bassossy
Prostatic complications are common in patients with diabetes. This study investigated the effect of different ginger ingredients: zingerone, geraniol, and 6-gingerol on the prostate in diabetic rats. Diabetes was induced in Wistar rats by streptozotocin intraperitoneal injection (50 mg/kg), and the rats were left for 10 weeks to develop prostatic complications. In diabetic treated groups, rats received daily oral zingerone, geraniol, and 6-gingerol in doses of 20, 200, and 75 mg/kg, respectively, in the last 8 weeks...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28880400/effects-of-ivermectin-and-its-combination-with-alpha-lipoic-acid-on-expression-of-igfbp-3-and-hspa1-genes-and-male-rat-fertility
#4
Z K El-Maddawy, W S H Abd El Naby
This study was conducted to evaluate the effects of ivermectin (IVM) with therapeutic dose (injected with 0.56 mg/kg b.wt.) either alone or combined with alpha lipoic acid (ALA) (50 mg/kg b.wt daily) on expression of testicular insulin-like growth factor binding protein-3 (IGFBP-3) and heat-shock protein A1 (HSPA1)) genes in the testes, as well as on male rat fertility parameters. Results revealed that expression levels of IGFBP-3 and HSPA1 were significantly increased in testis of the IVM-treated group relative to the control group...
September 7, 2017: Andrologia
https://www.readbyqxmd.com/read/28868838/aluminium-induced-oxidative-stress-apoptosis-and-alterations-in-testicular-tissue-and-sperm-quality-in-wistar-rats-ameliorative-effects-of-curcumin
#5
Ebrahim Cheraghi, Alireza Golkar, Kambiz Roshanaei, Behrang Alani
Background: Reproductive toxicity is a major challenge associated with aluminum (Al) exposure. No studies have evaluated the possible effects of curcumin (CUR) on Al-induced reproductive dysfunction. Therefore, this study investigated the effects of CUR treatment on Al-induced reproductive damage. MATERIALS AND METHODS: In this experimental study, 40 male Wistar rats were allocated to the five groups (n=8) based on the treatment they received: no treatment (control), solvent [dimethyl sulfoxide (DMSO) or distilled water], CUR 10 mg/kg body weight (BW), Al chloride 10 mg/kg BW, and CUR+Al chloride (10 mg/kg BW/each alone)...
October 2017: International Journal of Fertility & Sterility
https://www.readbyqxmd.com/read/28858728/a-carbapenem-antibiotic-imipenem-cilastatin-induces-an-oxidative-stress-status-and-gonadotoxic-effects-in-%C3%A2-wistar-%C3%A2-rats
#6
Amal Tahri, Kamilia Ksouda, Rim Kallel, Salima Daoud, Tahia Boudawara, Khaled Mounir Zeghal, Zouheir Sahnoun
Imipenem is a carbapenem antibiotic largely used to treat infection diseases. The present study was designed to investigate the effects of imipenem/cilastatin (IMP) on oxidative stress, antioxidant levels, testicular structure and sperm parameters in rats. Adult Wistar rats (84days old; N=8/group) were treated intraperitoneally with physiological serum containing 0mg/kg, 30mg/kg, 50mg/kg and 80mg/kg of IMP for one week. The results revealed that exposure to IMP especially at high doses, significantly decreased sexual organs weights (testis, epididymis, seminal vesicle and prostate), sperm characteristics (motility, viability and count) and plasma testosterone level while increased sperm abnormality...
August 28, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28846983/indian-propolis-ameliorates-the-mitomycin-c-induced-testicular-toxicity-by-reducing-dna-damage-and-elevating-the-antioxidant-activity
#7
Sandhya Kumari, Guruprasad Nayak, Sonu T Lukose, Sneha Guruprasad Kalthur, Nandini Bhat, Aswathi R Hegde, Srinivas Mutalik, Guruprasad Kalthur, Satish Kumar Adiga
Development of excellent curative therapy for most of the malignancies has resulted in a growing population of cancer survivors who are at increased risk for a variety of health problems including infertility. Therefore, fertility preservation has become an important issue during cancer treatment in recent years. Combination therapy with natural agents such as vitamins, antioxidants, dietary supplements, and plant products are considered as an attractive option to mitigate normal tissue toxicity imparted by chemotherapy...
August 25, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28836479/male-contraceptive-efficacy-of-poly-herbal-formulation-contracept-tm-composed-of-aqueous-extracts-of-terminalia-chebula-fruit-and-musa-balbisiana-seed-in-rat
#8
Abhinandan Ghosh, Bhabani Prasad Pakhira, Adrija Tripathy, Debidas Ghosh
CONTEXT: Terminalia chebula Retz (Combretaceae) and Musa balbisiana Colla (Musaceae) have a traditional reputation as a male contraceptive. OBJECTIVE: To determine the hypo-testicular activity of aqueous extracts of Terminalia chebula (fruit) and Musa balbisiana (seed) separately, and in composite manner at the ratio of 1:1 named as 'Contracept-TM' compared to cyproterone acetate (CPA), for developing a polyherbal contraceptive. MATERIALS AND METHODS: The separate extract of above said plants or 'Contracept-TM' at the dose of 40 mg/100 g body weight of rat/day or CPA at 2 mg/100 g body weight of rat/day was administered for 28 days...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/28835935/protective-effect-of-hydroalcoholic-extract-of-teucrium-polium-on-diabetes-induced-testicular-damage-and-serum-testosterone-concentration
#9
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/28820276/attenuation%C3%A2-of-sulfite-induced-testicular-injury-in-rats-by-zingiber-officinale-roscoe
#10
Akbar Afkhami Fathabad, Shahnaz Shekarforoush, Maryam Hoseini, Zahra Ebrahimi
Sulfite salts, including sodium metabisulfte, are widely used as preservatives in foods and pharmaceutical agents. Previous studies suggest that oxidative stress may be an important mediator of testicular injury. The present study was designed to elucidate the effect of exposure to sodium metabisulfite by gavage without or with Zingiber officinale (ginger) extract on the rat testes. Thirty-two male Wistar rats were randomly divided into control, ginger-treated (500 mg/kg/day), sodium metabisulfite- (SMB-) treated (260 mg/kg/day), and SMB + ginger- (SZ-) treated groups...
August 18, 2017: Journal of Dietary Supplements
https://www.readbyqxmd.com/read/28770381/effects-of-ascorbic-acid-on-spermatogenesis-and-sperm-parameters-in-diabetic-rats
#11
M Verónica Aguirre-Arias, Victoria Velarde, Ricardo D Moreno
Diabetes mellitus in human and animal models has been correlated with low sperm count, testicular abnormalities, high levels of germ cell death, and oxidative stress. In this study, we focus on three questions: (1) Is germ cell apoptosis stage-specific in diabetic male rats? (2) Could ascorbic acid (AA) reverse oxidative and histological damage and restore testicular dysfunction? (3) Could AA treatment restore fertility parameters in diabetic rats? Adult Sprague-Dawley rats were divided into four groups: control, diabetic, control plus AA, and diabetic plus AA...
August 2, 2017: Cell and Tissue Research
https://www.readbyqxmd.com/read/28760456/effect-of-vitamin-c-on-tissue-damage-and-oxidative-stress-following-tunica-vaginalis-flap-coverage-after-testicular-torsion
#12
Maryam Moghimian, Malihe Soltani, Hossein Abtahi, Majid Shokoohi
AIM OF THE STUDY: The aim was to investigate the protective effect of vitamin C on tissue damage and oxidative stress following tunica albuginea incision with tunica vaginalis flap coverage for testicular torsion. MATERIALS AND METHODS: Adult male Wistar rats were randomly divided into two experimental groups. The first group experienced 5h of testicular torsion followed by treatment with vitamin C alone, with tunica vaginalis flap coverage alone, and with both vitamin C and tunica vaginalis flap coverage along with a control group subjected to a sham procedure...
July 9, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28752616/study-on-testicular-response-to-prolong-artemisinin-based-combination-therapy-treatments-in-guinea-pigs
#13
J S Aprioku, A C Mankwe
Artemisinin-based combination therapies (ACTs) are first-line agents in malaria chemotherapy, but often abused in malaria endemic countries including Nigeria. This study investigated the effects of prolong treatment of artesunate-amodiaquine (ATS-Amod), artesunate-sulfadoxine-pyrimethamine (ATS-SP) and artemether-lumefantrine (ATM-Lum) on testicular indices in guinea pigs. Sixty-five pigs were grouped into 13 (n = 5 per group). Six groups were given standard or double therapeutic dose equivalents of ATS-Amod, ATS-SP or ATM-Lum daily for 14 day and sacrificed 24 hr after treatments...
July 27, 2017: Andrologia
https://www.readbyqxmd.com/read/28752572/effect-of-paracetamol-on-semen-quality
#14
REVIEW
S A Banihani
Several published studies, both direct and indirect, have connected paracetamol, also named acetaminophen, a commonly used over-the-counter analgesic and antipyretic medication, with semen quality and male infertility, although as yet this connection is unclear. This review addresses the effect of paracetamol on semen quality and hence on male factor infertility. We searched the MEDLINE database from January 1980 through January 2017 for English-language articles using the key words "paracetamol" and "acetaminophen" versus "sperm...
July 28, 2017: Andrologia
https://www.readbyqxmd.com/read/28747539/steroidogenesis-in-leydig-cells-effects-of-aging-and-environmental-factors
#15
Yiyan Wang, Fenfen Chen, Leping Ye, B R Zirkin, H Chen
Serum testosterone (T) levels decrease with aging in both humans and rodents. Using the rat as a model system, it was found that age-related reductions in serum T were not due to loss of Leydig cells, but rather to the reduced ability of the Leydig cells to produce T in response to luteinizing hormone (LH). Detailed analyses of the steroidogenic pathway have suggested that two defects along the pathway, LH stimulated cAMP production and cholesterol transport to and into the mitochondria, are of particular importance in age-related reductions in T production...
July 26, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28743351/chronic-stress-effects-and-their-reversibility-on-the-fallopian-tubes-and-uterus-in-rats
#16
S Divyashree, H N Yajurvedi
The durational effects of chronic stress on the Fallopian tubes and uterus were studied by exposing rats to stressors in the form of restraint (1h) and forced swimming (15min) daily for 4, 8 or 12 weeks. One group of stressed rats from each time period was then maintained without exposure to stressors for a further 4 weeks to assess their ability to recover from stress. All time periods of stress exposure resulted in decreased weight of the body and Fallopian tubes; however, the relative weight of the uterus and serum concentrations of oestradiol and insulin increased significantly...
July 26, 2017: Reproduction, Fertility, and Development
https://www.readbyqxmd.com/read/28727906/potential-of-telmisartan-in-the-treatment-of-benign-prostatic-hyperplasia
#17
Ismail Ogunbayode Ishola, Charles C Anunobi, Kehinde Habeeb Tijani, Olasunmbo Afolayan, Victoria U Udokwu
Benign prostatic hyperplasia (BPH) is a common health problem in aging men. This study was carried out to investigate the protective effect of telmisartan on testosterone induced-BPH in rats. Fifty-four male Wistar rats (200 - 250g) were randomly divided into 9 groups (n =6) and orally treated for 28 consecutive days: group 1- vehicle normal, olive oil (10 ml/kg); group 2- BPH model control (10 ml/kg); groups 3-5 - telmisartan (5, 10 or 20 mg/kg, respectively); group 6- pioglitazone (20 mg/kg); group 7- celecoxib (20 mg/kg); group 8- combination of telmisartan (5 mg/kg) and pioglitazone (20 mg/kg); group 9- combination of telmisartan (5 mg/kg) and celecoxib (20 mg/kg)...
July 20, 2017: Fundamental & Clinical Pharmacology
https://www.readbyqxmd.com/read/28703286/effect-of-quercetin-on-cadmium-chloride-induced-impairments-in-sexual-behaviour-and-steroidogenesis-in-male-wistar-rats
#18
G A Ujah, V U Nna, M I Agah, L O Omue, C B Leku, E E Osim
Cadmium chloride (CdCl2 ) has been reported to cause reproductive toxicity in male rats, mainly through oxidative stress. This study examined its effect on sexual behaviour, as one of the mechanisms of reproductive dysfunction, as well as the possible ameliorative effect of quercetin (QE) on same. Thirty male Wistar rats (10 weeks old), weighing 270-300 g, were used for this study. They were either orally administered 2% DMSO, CdCl2 (5 mg/kg b.w.), QE (20 mg/kg b.w.) or CdCl2 +QE, once daily for 4 weeks, before sexual behavioural studies...
July 13, 2017: Andrologia
https://www.readbyqxmd.com/read/28675914/plasmatic-and-intracellular-markers-of-oxidative-stress-in-normal-weight-and-obese-patients-with-polycystic-ovary-syndrome
#19
Chantal Di Segni, Andrea Silvestrini, Romana Fato, Christian Bergamini, Francesco Guidi, Sebastiano Raimondo, Elisabetta Meucci, Daniela Romualdi, Rosanna Apa, Antonio Lanzone, Antonio Mancini
Introduction Insulin resistance (IR) is associated with polycystic ovary syndrome (PCOS). Oxidative stress (OS) is, in turn, related to IR. Studies in PCOS evidenced an increase in OS markers, but they are mainly performed in obese patients, while the complex picture of normal weight PCOS is still poorly investigated. Matherials and Methods To investigate OS in PCOS and relationship with hormonal and metabolic picture, we performed a case-control study in 2 PCOS groups: normal weight (N-PCOS, n=21, age 18-25 ys, mean±SEM BMI 20...
July 4, 2017: Experimental and Clinical Endocrinology & Diabetes
https://www.readbyqxmd.com/read/28655134/multiple-mechanisms-linking-type-2-diabetes-and-alzheimer-s-disease-testosterone-as-a-modifier
#20
Prita R Asih, Michelle L Tegg, Hamid Sohrabi, Malcolm Carruthers, Samuel E Gandy, Farid Saad, Giuseppe Verdile, Lars M Ittner, Ralph N Martins
Evidence in support of links between type-2 diabetes mellitus (T2DM) and Alzheimer's disease (AD) has increased considerably in recent years. AD pathological hallmarks include the accumulation of extracellular amyloid-β (Aβ) and intracellular hyperphosphorylated tau in the brain, which are hypothesized to promote inflammation, oxidative stress, and neuronal loss. T2DM exhibits many AD pathological features, including reduced brain insulin uptake, lipid dysregulation, inflammation, oxidative stress, and depression; T2DM has also been shown to increase AD risk, and with increasing age, the prevalence of both conditions increases...
2017: Journal of Alzheimer's Disease: JAD
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