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https://www.readbyqxmd.com/read/28532471/perfusion-by-arterial-spin-labelling-following-single-dose-tadalafil-in-small-vessel-disease-pastis-study-protocol-for-a-randomised-controlled-trial
#1
Mathilde M H Pauls, Natasha Clarke, Sarah Trippier, Shai Betteridge, Franklyn A Howe, Usman Khan, Christina Kruuse, Jeremy B Madigan, Barry Moynihan, Anthony C Pereira, Debbie Rolfe, Egill Rostrup, Caroline E Haig, Thomas R Barrick, Jeremy D Isaacs, Atticus H Hainsworth
BACKGROUND: Cerebral small vessel disease is a common cause of vascular cognitive impairment in older people, with no licensed treatment. Cerebral blood flow is reduced in small vessel disease. Tadalafil is a widely prescribed phosphodiesterase-5 inhibitor that increases blood flow in other vascular territories. The aim of this trial is to test the hypothesis that tadalafil increases cerebral blood flow in older people with small vessel disease. METHODS/DESIGN: Perfusion by Arterial Spin labelling following Single dose Tadalafil In Small vessel disease (PASTIS) is a phase II randomised double-blind crossover trial...
May 22, 2017: Trials
https://www.readbyqxmd.com/read/28503744/treatment-using-tadalafil-for-severe-pre-eclampsia-with-fetal-growth-restriction
#2
Hiroaki Tanaka, Michiko Kubo, Masafumi Nii, Sintarou Maki, Takashi Umekawa, Tomoaki Ikeda
For severe pre-eclampsia (PE) with fetal growth restriction (FGR), the only effective treatment is early delivery of the placenta. Clinicians are often forced to end the pregnancy because of maternal indications. We report a case of severe PE with FGR in which the PE was temporarily improved and pregnancy successfully prolonged with tadalafil, a phosphodiesterase 5 inhibitor. A 35-year-old primigravid woman presented at 27 3/7 weeks of gestation with severe PE and FGR. After commencing tadalafil administration, biochemical and angiogenic markers improved...
May 15, 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/28502943/the-development-of-cerebral-venous-thrombosis-after-tadalafil-ingestion-in-a-patient-with-antiphospholipid-syndrome
#3
Kenji Numata, Kouhei Shimoda, Yasushi Shibata, Ayako Shioya, Yasuharu Tokuda
We report a case of cerebral venous thrombosis related to the ingestion of tadalafil. A 45-year-old man presented with posterior headache and was diagnosed with tension headache. Five days later, he was transported to our hospital via ambulance due to a tonic-clonic seizure. Head MRI showed cerebral venous thrombosis (CVT). He confessed to having recently taken a large doses of tadalafil. His anti-cardiolipin antibody and anti-caldiolipin-β2-glycoprotein-I complex antibody levels were elevated. Our case suggests the possibility that tadalafil is related to both cardiovascular complications and CVT in patients with hypercoagulability...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28494463/plasma-drug-concentrations-in-patients-with-pulmonary-arterial-hypertension-on-combination-treatment
#4
Ekkehard Grünig, Johanna Ohnesorge, Nicola Benjamin, Jürgen Burhenne, Yeliz Enderle, Benjamin Egenlauf, Christine Fischer, Satenik Harutyunova, Andrea Huppertz, Hans Klose, Walter E Haefeli
BACKGROUND: Combination therapy with the phosphodiesterase type 5 inhibitors (PDE-5i) sildenafil or tadalafil and the endothelin receptor antagonists (ERA) bosentan, ambrisentan, or macitentan may cause mutual pharmacokinetic interactions in patients with pulmonary arterial hypertension (PAH). OBJECTIVE: The objective of this study was to analyze plasma drug concentrations in PAH patients receiving different combination treatments. METHODS: PAH patients receiving a stable combination treatment with ERA and PDE-5i with targeted dosage for at least 1 month were routinely assessed, including clinical parameters and plasma drug concentrations...
May 12, 2017: Respiration; International Review of Thoracic Diseases
https://www.readbyqxmd.com/read/28486684/superior-vasodilation-of-human-pulmonary-vessels-by-vardenafil-compared-with-tadalafil-and-sildenafil-additive-effects-of-bosentan%C3%A2
#5
Michael Ried, Reiner Neu, Karla Lehle, Christian Großer, Tamas Szöke, Gunter Lang, Hans-Stefan Hofmann, Markus Hoenicka
OBJECTIVES: Pulmonary arterial hypertension is characterized by pulmonary vascular proliferation and remodelling, leading to a progressive increase in pulmonary arterial resistance. Vasodilator properties of 3 different phosphodiesterase (PDE)-5 inhibitors alone and in combination with an endothelin (ET) receptor antagonist were compared in an ex vivo model. METHODS: Segments of human pulmonary arteries (PAs) and pulmonary veins (PVs) were harvested from lobectomy specimens...
May 9, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28471234/protective-effects-of-diltiazem-and-tadalafil-on-shock-wave-induced-kidney-injury-in-rats
#6
G Ozmerdiven, B A Vuruskan, O Kaygisiz, H Vuruskan
BACKGROUND: We aimed to compare the protective effects of tadalafil and diltiazem on renal histology after ischemia and reperfusion injury in a rat model of shock wave lithotripsy. METHODS: A total of 40 adult, male Sprague-Dawley rats were randomized into four groups as follows; control group (group C), group S (SWL + nephrectomy), group T (SWL + tadalafil given before nephrectomy) and group D (SWL + diltiazem given before nephrectomy). Both kidneys were evaluated regarding tubular damage, peritubular fibrosis and heat shock protein-70 (HSP-70) immune-expression of glomeruli, cortical and medullar collector tubules on light microscopy...
2017: Bratislavské Lekárske Listy
https://www.readbyqxmd.com/read/28470986/nickel-ii-assisted-enantiomeric-differentiation-and-quantitation-of-tadalafil-by-direct-electrospray-ionization-mass-spectrometry
#7
Lu Wang, Yali Wang, Yunfeng Chai, Yu Kang, Cuirong Sun, Su Zeng
A facile method based on electrospray mass spectrometry was established and validated for the differentiation of enantiomeric Tadalafil isomers without using chiral chromatographic separation. The enantiomers were coupled with a chiral selector to form diastereomeric complex ions. Nickel-Tadalafil complexes, [Ni(II) (Tadalafil)(L-Trp)-H](+) , produced a characteristic fragment ion at m/z 524 by loss of 1-methyl-1, 6-dihydropyrazine-2, 5-dione (MDD) via collision-induced dissociation (CID). The relative abundance of this fragment ion to the precursor contributed to differentiate Tadalafil enantiomers, and energy-resolved product-ion spectra were applied to determine molar composition of Tadalafil in the mixture (R, R and S, S) as well...
May 4, 2017: Journal of Mass Spectrometry: JMS
https://www.readbyqxmd.com/read/28465683/chronic-administration-of-tadalafil-improves-the-symptoms-of-patients-with-amicrobic-magi-an-open-study
#8
Sandro La Vignera, Rosita A Condorelli, Laura M Mongioi, Aldo E Calogero
Aim of this study was to evaluate the effects of pharmacological treatment with Tadalafil 5 mg daily on symptoms and quality of sperm parameters in selected patients with amicrobic MAGI (male accessory gland inflammation). 120 patients with amicrobic MAGI (mean age 27.0 ± 6.0 years) with mild-moderate ED (erectile dysfunction) according to IIEF-5 (International Index of Erectile Function 5 Items) scores underwent pharmacological treatment with Tadalafil 5 mg daily for six months. Before and after treatment these patients were evaluated through IIEF-5, semen analysis (according to WHO Criteria, 2010), SI-MAGI (Structured Interview about Male Accessory Gland Inflammation), and ultrasound evaluation...
2017: International Journal of Endocrinology
https://www.readbyqxmd.com/read/28458371/synthesis-and-structure-revision-of-dimeric-tadalafil-analogue-adulterants-in-dietary-supplements
#9
Suresh Mandava, Bogonda Ganganna, Jungjoong Hwang, Younchang Jang, Jiho Hwang, Mallesham Samala, Ki-Bbeum Kim, Haeil Park, Ji Hyun Lee, Sun Young Baek, Jongkook Lee
A number of phosphodiesterase 5 (PDE5) inhibitors approved by authorities have been used successfully in the treatment of erectile dysfunction. These medicines must be prescribed carefully due to their adverse effects, but they and their analogues are being illegally added to dietary supplements. These illegal dietary supplements pose a significant risk to public health. Several dimeric tadalafil analogues have been synthesized for use as reference standards in the inspection of functional foods that are mainly advertised as sexual enhancement products...
2017: Chemical & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/28450170/use-of-acidifier-and-solubilizer-in-tadalafil-solid-dispersion-to-enhance-the-in-vitro-dissolution-and-oral-bioavailability-in-rats
#10
Jin-Seok Choi, Soon-Hyung Kwon, Sang-Eun Lee, Woo Suk Jang, Jong Chan Byeon, Hyeong Mo Jeong, Jeong-Sook Park
The purpose of this study is to improve the solubility, in vitro dissolution, and oral bioavailability in rats of tadalafil (TDF) by using SD technique with a weak acid and a copolymer. TDF-SD was prepared via solvent evaporation, coupled with the incorporation of an acidifier and solubilizer. Tartaric acid enhanced the solubility of TDF over 5-fold in DW, and Soluplus(®) enhanced the solubility of TDF over 8.7-fold and 19.2-fold compared to that of TDF (pure) in DW and pH 1.2 for 1h, respectively. The optimal formulation of TDF-SD3 was composed of TDF vs Tartaric acid vs Soluplus(®) vs Aerosil=1:1:3:3...
April 24, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28439987/comparison-of-silodosin-versus-tadalafil-in-patients-with-lower-urinary-tract-symptoms-associated-with-benign-prostatic-hyperplasia
#11
Masaki Yoshida, Hideki Origasa, Narihito Seki
OBJECTIVES: To compare the efficacy and safety of silodosin versus tadalafil for treating lower urinary tract symptoms associated with benign prostatic hyperplasia (LUTS/BPH). METHODS: After informed consent, patients with LUTS/BPH were randomized in a 1:1 ratio to receive silodosin 8 mg/day or tadalafil 5 mg/day for 8 weeks (Period 1). Patients treated with tadalafil entered an exploratory phase and received silodosin or tadalafil for another 8 weeks. The primary efficacy endpoint was the change in the total International Prostate Symptom Score (IPSS) with Period 1 treatment...
April 25, 2017: Lower Urinary Tract Symptoms
https://www.readbyqxmd.com/read/28431996/comparison-of-silodosin-monotherapy-versus-silodosin-with-tadalafil-add-on-therapy-in-patients-with-benign-prostatic-hyperplasia
#12
Takashi Yoshida, Hidefumi Kinoshita, Seiji Shimada, Makoto Taguchi, Tadashi Matsuda
OBJECTIVE: To evaluate the efficacy and safety of add-on therapy with the phosphodiesterase type 5 inhibitor tadalafil for patients with lower urinary tract symptoms secondary to benign prostatic hyperplasia (LUTS/BPH) treated with the α1-adrenoceptor blocker silodosin. METHODS: We analyzed 103 patients with LUTS/BPH with an International Prostate Symptom Score (IPSS) of >8 after ≥4 weeks of silodosin treatment from April 2016 through December 2016 at Kori Hospital...
April 18, 2017: Urology
https://www.readbyqxmd.com/read/28427554/clinical-and-hemodynamic-improvements-after-adding-ambrisentan-to-background-pde5i-therapy-in-patients-with-pulmonary-arterial-hypertension-exhibiting-a-suboptimal-therapeutic-response-athena-1
#13
Shelley Shapiro, Fernando Torres, Jeremy Feldman, Anne Keogh, Martine Allard, Christiana Blair, Hunter Gillies, James Tislow, Ronald J Oudiz
OBJECTIVE: Pulmonary arterial hypertension (PAH) is a condition which may lead to right ventricular failure and premature death. While recent data supports the initial combination of ambrisentan (a selective ERA) and tadalafil (a PDE5i) in functional class II or III patients, there is no published data describing the safety and efficacy of ambrisentan when added to patients currently receiving a PDE5i and exhibiting a suboptimal response. The ATHENA-1 study describes the safety and efficacy of the addition of ambrisentan in this patient population...
May 2017: Respiratory Medicine
https://www.readbyqxmd.com/read/28425346/ambrisentan-a-review-of-its-use-in-pulmonary-arterial-hypertension
#14
Belinda N Rivera-Lebron, Michael G Risbano
Pulmonary arterial hypertension (PAH) is a progressive disease defined by an elevation in pulmonary arterial pressure that can lead to right heart failure and death. Ambrisentan is a selective endothelin receptor antagonist approved for the treatment of idiopathic, heritable PAH and connective tissue disease-associated PAH. Ambrisentan has been shown to improve exercise capacity and hemodynamics with an acceptable side-effect profile. It has also proven to be safely used in combination with other PAH-specific medications, especially with phosphodiesterase-5 inhibitors...
April 1, 2017: Therapeutic Advances in Respiratory Disease
https://www.readbyqxmd.com/read/28411333/technological-device-for-manufacturing-transdermal-films-possible-applications-to-the-individualized-treatment-for-erectile-dysfunction
#15
Francisco José Raposo, Hudson Caetano Polonini, Anderson Ferreira, Nádia Rezende Barbosa Raposo, Marcos Antônio Fernandes Brandão
Pharmacological advances in erectile dysfunction (ED) treatment have aroused growing interest among health professionals towards sexual dysfunction, generating an increasing demand for dosage forms and drug delivery systems, including tadalafil. This study aimed to develop a device to generate patches that would enable drug dosage individualization and transdermal administration. To create such a mechanical device, technical drawings were made using the CAD software. A functional prototype was built, and a pharmaceutical formulation containing tadalafil (10 mg cm(-2)) was prepared...
April 14, 2017: AAPS PharmSciTech
https://www.readbyqxmd.com/read/28403587/tadalafil-once-daily-narrative-review-of-a-treatment-option-for-female-sexual-dysfunctions-fsd-in-midlife-and-older-women
#16
Chiara Borghi, Lucio Dell'Atti
Female Sexual Disorders (FSD) include a complex, multidimensional, individual experience that can change as an individual age, suggesting that these problems are caused by multiple factors including psychosocial factors, personal relationships, pathologic changes caused by diseases, and pharmacologic influences. Menopause is an important time for middle aged women and postmenopausal physiological changes could have a significant role in the development of FSD. Few is still known about their correct definition and treatment...
March 31, 2017: Archivio Italiano di Urologia, Andrologia
https://www.readbyqxmd.com/read/28399643/the-effect-of-pde5-inhibitors-on-bone-and-oxidative-damage-in-ovariectomy-induced-osteoporosis
#17
Hamit H Alp, Zübeyir Huyut, Serkan Yildirim, Yıldıray Başbugan, Levent Ediz, Mehmet R Şekeroğlu
Osteoporosis is a major public health problem associated with many factors, and it affects more than 50% of women over 50 years old. In the current study, our purpose was to investigate the effects of phosphodiestarase-5 inhibitors on osteoporosis via the nitric oxide/3',5'-cyclic guanosine monophosphate/protein kinase G signalling pathway. A total of 50 female albino Wistar rats were separated into five groups. The first group was appointed as the healthy control group with no ovariectomy. All animals in the other groups underwent a bilateral ovariectomy...
May 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28384011/tadalafil-facilitates-the-distal-ureteral-stone-expulsion-a-meta-analysis
#18
Yunjin Bai, Yubo Yang, Xiaoming Wang, Yin Tang, Ping Han, Jia Wang
OBJECTIVE: To assess the efficacy and safety of tadalafil in facilitating the spontaneous passage of distal ureteral stones. METHODS: The relevant studies were identified by searching MEDLINE, EMBASE, and the Cochrane Central Register of Controlled Trials up to November 2016. Randomized controlled trials evaluating effects of tadalafil for distal ureteral stones were included. RESULTS: Six publications involving 921 patients were included...
April 6, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28378327/characterization-of-a-single-isomer-carboxymethyl-beta-cyclodextrin-in-chiral-capillary-electrophoresis
#19
Ida Fejős, Erzsébet Varga, Gábor Benkovics, Milo Malanga, Tamás Sohajda, Julianna Szemán, Szabolcs Beni, Szabolcs Béni
In this work, the synthesis, characterization and chiral capillary electrophoretic study of heptakis-(2,3-di-O-methyl-6-O-carboxymethyl)-β-cyclodextrin (HDMCM), a single-isomer carboxymethylated cyclodextrin are presented. The pH-dependent and selector concentration-dependent enantiorecognition properties of HDMCM were investigated and discussed herein. The enantioseparation was assessed applying a structurally diverse set of non-charged, basic, and zwitterionic racemates. The increase in the selector concentration and in the gross negative charge of HDMCM improved the enantioseparation that could be observed in the majority of the cases...
April 5, 2017: Electrophoresis
https://www.readbyqxmd.com/read/28338191/a-randomized-single-center-study-to-compare-the-efficacy-and-tolerability-of-tadalafil-once-daily-plus-lidocaine-anesthetic-spray-on-premature-ejaculation
#20
L Dell'Atti, A B Galosi, C Ippolito
OBJECTIVE: The use of topical local anesthetics in the form of creams, gel or spray is the oldest method of retarding ejaculation. However, several studies have suggested that phosphodiesterase type 5 inhibitors (5-PDEiS) show a potential therapeutic use in the treatment of premature ejaculation (PE). The aim of this study was to compare the efficacy and tolerability of tadalafil-only, tadalafil plus local anesthetic spray (lidocaine), and topical lidocaine spray-only before intercourse on the intravaginal ejaculatory latency time (IELT) of patients with lifelong PE...
March 2017: European Review for Medical and Pharmacological Sciences
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