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Mureseanu M, Filip M, Bleotu I, Spinu CI, Marin AH, Matei I, Parvulescu V. Cu(II) and Mn(II) Anchored on Functionalized Mesoporous Silica with Schiff Bases: Effects of Supports and Metal-Ligand Interactions on Catalytic Activity. Nanomaterials (Basel) 2023; 13:1884. [PMID: 37368314 DOI: 10.3390/nano13121884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 06/09/2023] [Accepted: 06/13/2023] [Indexed: 06/28/2023]
Abstract
New series of Cu(II) and Mn(II) complexes with Schiff base ligands derived from 2-furylmethylketone (Met), 2-furaldehyde (Fur), and 2-hydroxyacetopheneone (Hyd) have been synthesized in situ on SBA-15-NH2, MCM-48-NH2, and MCM-41-NH2 functionalized supports. The hybrid materials were characterized by X-ray diffraction, nitrogen adsorption-desorption, SEM and TEM microscopy, TG analysis, and AAS, FTIR, EPR, and XPS spectroscopies. Catalytic performances were tested in oxidation with the hydrogen peroxide of cyclohexene and of different aromatic and aliphatic alcohols (benzyl alcohol, 2-methylpropan-1-ol, and 1-buten-3-ol). The catalytic activity was correlated with the type of mesoporous silica support, ligand, and metal-ligand interactions. The best catalytic activity of all tested hybrid materials was obtained in the oxidation of cyclohexene on SBA-15-NH2-MetMn as a heterogeneous catalyst. No leaching was evidenced for Cu and Mn complexes, and the Cu catalysts were more stable due to a more covalent interaction of the metallic ions with the immobilized ligands.
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Affiliation(s)
- Mihaela Mureseanu
- Department of Chemistry, Faculty of Sciences, University of Craiova, Calea Bucuresti, 107I, 200478 Craiova, Romania
| | - Mihaela Filip
- "IlieMurgulescu" Institute of Physical Chemistry, Romanian Academy, Splaiul Independentei 202, 060021 Bucharest, Romania
| | - Irina Bleotu
- Department of Chemistry, Faculty of Sciences, University of Craiova, Calea Bucuresti, 107I, 200478 Craiova, Romania
| | - Cezar Ionut Spinu
- Department of Chemistry, Faculty of Sciences, University of Craiova, Calea Bucuresti, 107I, 200478 Craiova, Romania
| | - Alexandru Horia Marin
- Ken and Mary Alice Lindquist Department of Nuclear Engineering, Penn State University, University Park, State College, PA 16802, USA
- Surface Analysis Laboratory, Institute for Nuclear Research Pitesti, 115400 Mioveni, Romania
| | - Iulia Matei
- "IlieMurgulescu" Institute of Physical Chemistry, Romanian Academy, Splaiul Independentei 202, 060021 Bucharest, Romania
| | - Viorica Parvulescu
- "IlieMurgulescu" Institute of Physical Chemistry, Romanian Academy, Splaiul Independentei 202, 060021 Bucharest, Romania
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2
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Filip M, Anghel EM, Rednic V, Papa F, Somacescu S, Munteanu C, Aldea N, Zhang J, Parvulescu V. Variation in Metal-Support Interaction with TiO 2 Loading and Synthesis Conditions for Pt-Ti/SBA-15 Active Catalysts in Methane Combustion. Nanomaterials (Basel) 2023; 13:nano13101647. [PMID: 37242063 DOI: 10.3390/nano13101647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 05/03/2023] [Accepted: 05/12/2023] [Indexed: 05/28/2023]
Abstract
The control of catalytic performance using synthesis conditions is one of the main goals of catalytic research. Two series of Pt-Ti/SBA-15 catalysts with different TiO2 percentages (n = 1, 5, 10, 30 wt.%) were obtained from tetrabutylorthotitanate (TBOT) and peroxotitanate (PT), as titania precursors and Pt impregnation. The obtained catalysts were characterized using X-ray diffraction, scanning electron microscopy (SEM) and transmission electron microscopy (TEM), N2 sorption, Raman, X-ray photoelectron spectroscopy (XPS), X-ray absorption spectroscopy (XAS), hydrogen temperature-programmed reduction (H2-TPR) and H2-chemisorption measurements. Raman spectroscopy showed framework titanium species in low TiO2 loading samples. The anatase phase was evidenced for samples with higher titania loading, obtained from TBOT, and a mixture of rutile and anatase for those synthesized by PT. The rutile phase prevails in rich TiO2 catalysts obtained from PT. Variable concentrations of Pt0 as a result of the stronger interaction of PtO with anatase and the weaker interaction with rutile were depicted using XPS. TiO2 loading and precursors influenced the concentration of Pt species, while the effect on Pt nanoparticles' size and uniform distribution on support was insignificant. The Pt/PtO ratio and their concentration on the surface were the result of strong metal-support interaction, and this influenced catalytic performance in the complete oxidation of methane at a low temperature. The highest conversion was obtained for sample prepared from PT with 30% TiO2.
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Affiliation(s)
- Mihaela Filip
- Ilie Murgulescu Institute of Physical Chemistry, Romanian Academy, Splaiul Independentei 202, 060021 Bucharest, Romania
| | - Elena Maria Anghel
- Ilie Murgulescu Institute of Physical Chemistry, Romanian Academy, Splaiul Independentei 202, 060021 Bucharest, Romania
| | - Vasile Rednic
- National Institute for R&D of Isotopic and Molecular Technologies, Donat St. 67-103, 400293 Cluj-Napoca, Romania
| | - Florica Papa
- Ilie Murgulescu Institute of Physical Chemistry, Romanian Academy, Splaiul Independentei 202, 060021 Bucharest, Romania
| | - Simona Somacescu
- Ilie Murgulescu Institute of Physical Chemistry, Romanian Academy, Splaiul Independentei 202, 060021 Bucharest, Romania
| | - Cornel Munteanu
- Ilie Murgulescu Institute of Physical Chemistry, Romanian Academy, Splaiul Independentei 202, 060021 Bucharest, Romania
| | - Nicolae Aldea
- National Institute for R&D of Isotopic and Molecular Technologies, Donat St. 67-103, 400293 Cluj-Napoca, Romania
| | - Jing Zhang
- Beijing Synchrotron Radiation Facilities of Beijing Electron Positron Collider National Laboratory,19B Yuquan Road, Beijing 100049, China
| | - Viorica Parvulescu
- Ilie Murgulescu Institute of Physical Chemistry, Romanian Academy, Splaiul Independentei 202, 060021 Bucharest, Romania
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3
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De Filippis R, Almeida D, Cikrikcili U, Di Lodovico L, Filip M, Fusar-Poli L, Gürcan A, Gurrea Salas D, Mieze K, Mijaljica G, Noël C, Nwaubani P, Pantic M, Pérez Longás B, Pushko A, Román-Jarrín A, Santos M, Silagadze K, Sorokin M, Tapoi C, Hanon C, Hoertel N, Raballo A, Sartorius N, Pinto Da Costa M. Psychiatry training goes virtual: the experience of the first online edition of the EPA Research Summer School. Eur Psychiatry 2022. [PMCID: PMC9568213 DOI: 10.1192/j.eurpsy.2022.2192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Introduction
The European Psychiatric Association (EPA) Summer School allows psychiatric trainees and early career psychiatrists (ECPs) from all over Europe to meet, network, and learn together. After the 2020 edition being cancelled due to COVID-19, the 10th edition in 2021 focused for the first time on research and was conducted remotely.
Objectives
To provide an overview and feedback about the first Virtual EPA Research Summer School as a new way to encourage international networking during COVID-19.
Methods
The School was organized by the EPA Secretary for Education, and 4 Faculty members. It started with a “breaking the ice session” one week before and then a two-days meeting on 23-24 September 2021 using an online video-platform. This was preceded by all the 21 participants (from 18 different countries) recording a short 4-minute video presentation, which was uploaded and shared with other participants and Faculty.
Results
Participants were divided on a voluntary basis into three working groups: 1) “Drug repurposing: overcoming challenges in pharmacoepidemiology” 2) “Psychopathological research in psychiatry”; 3) “How to conduct a cross-sectional survey?”. The Summer School program was composed of plenary sessions with lectures by the Faculty members, discussion sessions, and working groups time. At the end, each group presented a summary of the work done to the rest of the participants.
Conclusions
Although the remote format limits social interactions during the Summer School, overall participants’ high satisfaction and productivity indicate that not only online formats, but also the topic of research might be covered in future editions.
Disclosure
No significant relationships.
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Taranu I, Marin D, Pistol G, Untea A, Vlassa M, Filip M, Gras M, Rotar C, Anghel A. Assessment of the ability of dietary yeast-fermented rapeseed
meal to modulate inflammatory and oxidative stress
in piglets after weaning. J Anim Feed Sci 2022. [DOI: 10.22358/jafs/148055/2022] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Niedzielska-Andres E, Mizera J, Wierciak J, Pomierny-Chamiolo L, Filip M. Is there a difference in expression of chosen metabotropic receptors at protein and mRNA levelsin the brain of rats with different vulnerability to the rewarding effects of cocaine? Toxicol Lett 2021. [DOI: 10.1016/s0378-4274(21)00662-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Wdowiak A, Filip M. The effect of myo-inositol, vitamin D3 and melatonin on the oocyte quality and pregnancy in in vitro fertilization: a randomized prospective controlled trial. Eur Rev Med Pharmacol Sci 2021; 24:8529-8536. [PMID: 32894558 DOI: 10.26355/eurrev_202008_22649] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To evaluate the efficacy of a treatment with Myo-inositol (MI) plus melatonin and vitamin D3 in women underwent intra cytoplasmatic sperm injection (ICSI). PATIENTS AND METHODS 100 women undergoing ICSI procedure were enrolled and randomly divided 1:1 in two groups. The study group was treated with 2 g MI, 50 mg Alpha-Lactalbumin (alpha-LA) and 200 µg folic acid in powder every morning for 6 months (3 months before oocyte pick up and 3 months after ICSI); the same patients underwent treatment with 600 mg MI, 1 mg melatonin plus 200 µg folic acid during the evening for 3 months before oocyte pick up; subsequently the pick up these patients were treated with 600 mg MI, 200 µg folic acid, 1 mg melatonin, 50 µg vitamin D3 as cholecalciferol until the 12th week of gestation. The control group was treated with 200 µg folic acid twice a day. Clinical pregnancy rate was evaluated as primary outcome, followed by blastocyst and oocyte quality, as well as gestational period as secondary outcomes. RESULTS Treatment significantly improved blastocyst and oocyte quality in the study group, achieving the 42% of clinical pregnancies vs. 24% in the control group, even though the course of pregnancy did not significantly differ between the groups. However, the mean gestational period was shorter in the control group. CONCLUSIONS The supplementation of MI in combination with melatonin in the first 3 months before oocyte pick up and with vitamin D3 in the further 3 months could represent an innovative support for all those women undergoing ICSI.
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Affiliation(s)
- A Wdowiak
- Diagnostic Techniques Unit, Medical University of Lublin, Lublin, Poland.
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7
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Filip M, Petcu G, Anghel EM, Petrescu S, Trica B, Osiceanu P, Stanica N, Atkinson I, Munteanu C, Mureseanu M, Parvulescu V. FeTi- SBA-15 magnetic nanocomposites with photocatalytic properties. Catal Today 2021. [DOI: 10.1016/j.cattod.2020.08.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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8
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Frankowska M, Miszkiel J, Pomierny-Chamiolo L, Pomierny B, Celeste Borelli A, Suder A, Filip M. The impact of 3,4-methylendioxymetamphetamine (MDMA) abstinence on seeking behavior and the expression of the D 2-like and mGlu 5 receptors in the rat brain using saturation binding analyses. J Physiol Pharmacol 2020; 71. [PMID: 33316768 DOI: 10.26402/jpp.2020.4.09] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 08/30/2020] [Indexed: 11/03/2022]
Abstract
The abundance of research indicates that enriched environment acts as a beneficial factor reducing the risks of relapse in substance use disorder. There is also strong evidence showing the engagement of brain dopaminergic and glutamatergic signaling through the dopamine D2-like and metabotropic glutamate type 5 (mGlu5) receptors, respectively, that has a direct impact on drug reward and drug abstinence. The present study involved 3,4-methylendioxymethamphetamine (MDMA) self-administration with the yoked-triad procedure in rats kept under different housing conditions during abstinence - enriched environment (EE) or isolation cage (IC) conditions - aimed at evaluating changes in brain receptors affecting drug-seeking behavior as well as density and affinity of the D2-like and mGlu5 receptors in several regions of the animal brain. Our results show that exposure to EE conditions strongly reduced active lever presses during cue-induced drug-seeking. At the neurochemical level, we demonstrated marked decreases of D2-like receptor affinity in the dorsal striatum in rats previously self-administering MDMA under EE and increases in density under IC conditions. Moreover, we found the increases in the density and decreases in the affinity of the D2-like receptor in the prefrontal cortex and nucleus accumbens provoked by IC conditions. The mGlu5 receptor density decreased only in the prefrontal cortex after IC and EE abstinence. Moreover, our study has revealed a clear decrease in mGlu5 receptor density in the nucleus accumbens in the group actively administering MDMA only under EE conditions. This study demonstrates that housing conditions have impact on drug-seeking behavior in rats during abstinence from MDMA self-administration. The observed changes in the dopamine D2-like and mGlu5 receptor Bmax and/or Kd values were brain-region specific and related to either pharmacological and/or motivational features of MDMA.
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Affiliation(s)
- M Frankowska
- Maj Institute of Pharmacology, Polish Academy of Sciences, Department of Drug Addiction Pharmacology, Cracow, Poland.
| | - J Miszkiel
- Maj Institute of Pharmacology, Polish Academy of Sciences, Department of Drug Addiction Pharmacology, Cracow, Poland
| | - L Pomierny-Chamiolo
- Department of Toxicology, Faculty of Pharmacy, Jagiellonian University Collegium Medicum, Cracow, Poland
| | - B Pomierny
- Department of Toxicology, Faculty of Pharmacy, Jagiellonian University Collegium Medicum, Cracow, Poland
| | - A Celeste Borelli
- Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - A Suder
- Maj Institute of Pharmacology, Polish Academy of Sciences, Department of Drug Addiction Pharmacology, Cracow, Poland
| | - M Filip
- Maj Institute of Pharmacology, Polish Academy of Sciences, Department of Drug Addiction Pharmacology, Cracow, Poland
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9
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Šámal F, Linzer P, Filip M, Jurek P, Pohlodek D, Haninec P. [Minimally Invasive Posterior Lumbar Interbody Fusion and Instrumentation - Outcomes at 24-Month Follow-up]. Acta Chir Orthop Traumatol Cech 2020; 87:95-100. [PMID: 32396509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
PURPOSE OF THE STUDY Minimally invasive posterior lumbar interbody fusion and percutaneous instrumentation were introduced in the clinical practice with the aim to reduce the damage to musculoligamentous structures associated with open surgeries. The purpose of the study is to evaluate the clinical outcomes, radiological results and complications of the group of patients operated with the use of the minimally invasive posterior lumbar interbody fusion technique. MATERIAL AND METHODS The group of 31 patients operated for lumbar degenerative disc disease was followed-up prospectively. The surgical technique included a unilateral microsurgical decompression of the spinal canal with the insertion of interbody cages supplemented by percutaneous transpedicular fixation. The clinical outcomes were evaluated by means of the Oswestry Disability Index (ODI), Macnab classification, VAS score for low back pain (VAS LBP) and lower extremity pain (VAS LE) at 2, 6, 12 and 24 months postoperatively. The success rate of interbody fusion and complications was also assessed. RESULTS The inclusion criteria were met by 29 patients. The mean preoperative ODI score of 68.4 decreased to 25.1 at two-year follow-up (p 0.001). Based on the modified Macnab scale excellent and good outcomes were achieved at two-year-followup by 82.4% patients. The mean value of VAS LBP score decreased from 6.2 to 2.1 and in case of VAS LE from 5.38 to 1.34 (p ˂ 0.001). The mean time of operation was 157 minutes. Solid interbody fusion was achieved in 80% of patients. In one case, revision surgery for dislocation of the interbody cage was performed one year after the operation. A total of five misplaced transpedicular screws (5.2%) were recorded. DISCUSSION Dorsal minimally invasive spinal operational techniques, when compared with the open surgery, result in less iatrogenic injury to paravertebral muscles. From a short-term perspective, there is also less blood loss and lower frequency of infectious complications. Together with the reduction of postoperative pain and shorter hospital stay, they enable faster recovery and rehabilitation with comparable clinical effectiveness of the procedure. Apart from the above-mentioned benefits, also some shortcomings are discussed such as higher frequency of complications, longer time of operation, higher occurrence of implant malposition and higher exposure of the patient and the surgeon to radiation. CONCLUSIONS The minimally invasive posterior lumbar interbody fusion technique resulted in a statistically significant clinical improvement in the ODI, Macnab scale, VAS LBP and VAS LE scores. The percutaneous instrumentation technique shows an acceptable rate of incorrectly inserted screws. Key words: degenerative disc disease, minimally invasive spinal surgery, posterior lumbar interbody fusion, spine stabilization, lumbar interbody fusion complications.
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Affiliation(s)
- F Šámal
- Neurochirurgické oddělení Krajské nemocnice Tomáše Bati, Zlín
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10
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Smaga I, Gawlinski D, Brodowicz J, Filip M. Brain region-dependent changes in the expression of endocannabinoid-metabolizing enzymes in rats following antidepressant drugs. J Physiol Pharmacol 2019; 70. [PMID: 31889042 DOI: 10.26402/jpp.2019.5.06] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Accepted: 10/30/2019] [Indexed: 11/03/2022]
Abstract
The endocannabinoid (eCB) system plays a role in the pathophysiology of depression. The aim of this study was to investigate the expression of the eCB synthesizing enzymes (N-acyl phosphatidylethanolamine phospholipase D (NAPE-PLD) and diacylglycerol lipase α (DAGLα)) and eCB degrading enzymes (fatty acid amide hydrolase (FAAH) and monoacylglycerol lipase (MAGL)) after acute or chronic administration of antidepressant drugs (imipramine (IMI, 15 mg/kg), escitalopram (ESC, 10 mg/kg) and tianeptine (TIA, 10 mg/kg)). eCB metabolizing enzymes were altered in drug-dependent and brain region-specific fashion. After IMI treatment a reduction was noted in the expression of FAAH protein in the dorsal striatum, MAGL in the frontal cortex and DAGLα in the cerebellum. On the other hand, ESC treatment provoked an increase in the MAGL expression in the prefrontal cortex or NAPE-PLD and in DAGLα in the hippocampus and dorsal striatum, while reducing the FAAH expression in the dorsal striatum. TIA administration increased the levels of all enzymes in the prefrontal cortex as well as elevated DAGLα expression in the frontal cortex and dorsal striatum. In conclusion, our results indicate that changes in the eCBs levels after antidepressant drug treatment were related to the expression of their metabolizing enzymes.
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Affiliation(s)
- I Smaga
- Maj Institute of Pharmacology, Polish Academy of Sciences, Department of Drug Addiction Pharmacology, Cracow, Poland.
| | - D Gawlinski
- Maj Institute of Pharmacology, Polish Academy of Sciences, Department of Drug Addiction Pharmacology, Cracow, Poland
| | - J Brodowicz
- Maj Institute of Pharmacology, Polish Academy of Sciences, Department of Drug Addiction Pharmacology, Cracow, Poland
| | - M Filip
- Maj Institute of Pharmacology, Polish Academy of Sciences, Department of Drug Addiction Pharmacology, Cracow, Poland
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11
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Gawlinska K, Gawlinski D, Przegalinski E, Filip M. Maternal high-fat diet during pregnancy and lactation provokes depressive-like behavior and influences the irisin/brain-derived neurotrophic factor axis and inflammatory factors in male and female offspring in rats. J Physiol Pharmacol 2019; 70. [PMID: 31539886 DOI: 10.26402/jpp.2019.3.07] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Accepted: 06/28/2019] [Indexed: 11/03/2022]
Abstract
A balanced maternal diet is necessary for the proper health and development of offspring. Recent clinical and preclinical studies have strongly indicated that maternal exposure to a high-fat diet (HFD) can have an irreversible impact on the structure and function of the offspring's brain and affect the immune system, which may predispose the offspring to brain disorders, including depression. The irisin/brain-derived neurotrophic factor (BDNF) axis is a pathway that influences several neurobehavioral mechanisms involved in the pathogenesis of mental disorders. The aim of the present study was to evaluate the influence of a maternal HFD during pregnancy and lactation on depressive-like behavior, serum irisin concentration and hippocampal levels of irisin, BDNF and inflammatory factors (interleukin-1α, interleukin-6 and tumor necrosis factor-α) in adolescent and adult male and female offspring. The main findings indicate that offspring exposed to a maternal HFD are characterized by an increased immobility time in the forced swimming test at both stages of life. Our results showed that a maternal HFD decreased serum and hippocampal irisin levels in females on postnatal day (PND) 28 and decreased the level of interleukin-1α at postnatal days 28 and 63 in the hippocampus. Interestingly, significant age-dependent changes were observed in irisin, BDNF and interleukin levels. To summarize, our study indicates that a maternal HFD during pregnancy and lactation provokes depressive-like behaviour in the offspring. However, despite the observed changes in the levels of irisin and IL-1α in females, further investigations are required to identify the underlying molecular mechanism associated with depressive-like behavior in the offspring of HFD-fed dams.
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Affiliation(s)
- K Gawlinska
- Maj Institute of Pharmacology Polish Academy of Sciences, Department of Drug Addiction Pharmacology, Cracow, Poland.
| | - D Gawlinski
- Maj Institute of Pharmacology Polish Academy of Sciences, Department of Drug Addiction Pharmacology, Cracow, Poland
| | - E Przegalinski
- Maj Institute of Pharmacology Polish Academy of Sciences, Department of Drug Addiction Pharmacology, Cracow, Poland
| | - M Filip
- Maj Institute of Pharmacology Polish Academy of Sciences, Department of Drug Addiction Pharmacology, Cracow, Poland
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12
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Unseld M, Filip M, Seirl S, Gleiss A, Bianconi D, Kieler M, Demyanets S, Scheithauer W, Zielinski C, Prager G. Regorafenib therapy in metastatic colorectal cancer patients: markers and outcome in an actual clinical setting. Neoplasma 2019; 65:599-603. [PMID: 29940763 DOI: 10.4149/neo_2018_170727n506] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The oral multikinase inhibitor regorafenib had beneficial effects in randomized clinical phase III trials compared to the placebo in patients with metastatic colorectal cancer (mCRC) who progressed on standard therapies. The factors which influence regorafenib response and therapy sequence during treatment history are still highly discussed, and herein we analyzed the therapy algorithm, outcome and clinical markers following regorafenib application in a single center register study. Clinical data for 48 metastatic colorectal cancer patients were collected from 01.01.2013 to 31.12.2016. Treatment effects according to various patient and tumor characteristics were evaluated using univariate and multivariate Cox proportional hazard regression models. The 48 patients comprised 14 (29%) females and 34 (71%) males, with mean age 64.2±9 and ECOG 0-1. Progression free survival under regorafenib therapy was 2.9 months (quartiles 2.2; 4.4) and the overall response rate was 2 (4%) and disease control rate was 19 (40%). Overall survival (OS) and progression free survival (PFS) were investigated under regorafenib in the chemotherapy regimen given immediately before and afterthis treatment. Variables including tumor localization, Ras status, CEA and CA 19-9 plasma levels were analyzed for their impact on PFS, and the regorafenib-related adverse events were also observed. Our study confirms the efficacy of regorafenib in a real-life setting. We established that response rate and PFS in regorafenib treatment are independent of tumor localization, Ras status or biomarkers such as CEA and CA 19-9. Trifluridin/tripacil application or re-induction of chemotherapy +/- target therapy was effective following regorafenib therapy.
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Affiliation(s)
- M Unseld
- Department of Medicine I, Clin. Div. of Oncology and Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
| | - M Filip
- Department of Medicine I, Clin. Div. of Oncology and Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
| | - S Seirl
- Department of Medicine I, Clin. Div. of Oncology and Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
| | - A Gleiss
- Center for Medical Statistics, Informatics, and Intelligent Systems, Medical University of Vienna, Vienna, Austria
| | - D Bianconi
- Department of Medicine I, Clin. Div. of Oncology and Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
| | - M Kieler
- Department of Medicine I, Clin. Div. of Oncology and Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
| | - S Demyanets
- Department of Medicine I, Clin. Div. of Oncology and Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
| | - W Scheithauer
- Department of Medicine I, Clin. Div. of Oncology and Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
| | - C Zielinski
- Department of Medicine I, Clin. Div. of Oncology and Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
| | - G Prager
- Department of Medicine I, Clin. Div. of Oncology and Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
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Šámal F, Ouzký M, Strnad J, Haninec P, Linzer P, Filip M. [First Experience with Cranioplasty Using the Polyetheretherketone (PEEK) Implant - Retrospective Five-Year Follow-up Study]. Acta Chir Orthop Traumatol Cech 2019; 86:431-434. [PMID: 31941571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
PURPOSE OF THE STUDY Cranioplasty is currently the most common neurosurgical procedure. The purpose of this study is to describe the first experience with successful use of the Cranio-Oss (PEEK) custom implant for cranioplasty. MATERIAL AND METHODS In the period 2012 to 2013, a total of 26 cranioplasties were performed. In fourteen patients, their own bone flap was used for reconstruction. In four cases, a synthetic Cranio-Oss bone implant made of PEEK was used. In six patients, the defect was covered by an intraoperatively-made Palacos implant and in two cases, minor defects were covered with a titanium mesh. The patients were followed up for at least five years. Cranio-Oss is a cranial implant made from polyetheretherketone (PEEK), a synthetic biocompatible material. The implant is created using the CAD/CAM method in the shape of the bone defect based on the CT scan. Creating optimal roughness of the implant surface and of the surface of the contact area attached to the bone bed is controlled and included already in the strategy for machining individual areas of the implant during its manufacturing at a 5-axis machining centre. RESULTS The Cranio-Oss implant was used in four younger patients to cover larger and complex-shaped defects. The mean age of patients in this group was 47 years. The implant was fixed to the skull by micro-plates. In all the cases the wound healed well with good cosmetic results without the necessity of revision with respect to the used implant. The follow-up CT scans always showed the implant in situ with no signs of malposition. DISCUSSION Autologous bone flap is the most suitable material for defect reconstruction after craniectomy. This option is affordable and represents one of the best methods of reconstruction of defects after craniectomy in terms of cosmetic results. In some cases, the original skull cannot be used for cranioplasty (e.g. if destructed by tumourous process, infected or in comminuted fractures). In such cases, the defect needs to be managed using a synthetic implant. In case of extensive defects, the most suitable option is a custom made implant from advanced biomaterials. CONCLUSIONS Authors prefer using autologous bone flaps during cranioplasty. In cases where this method is unavailable, a synthetic bone substitute has to be used. The first medium-term experience with the use of a Cranio-Oss implant made of PEEK showed that it is a suitable alternative to the patient's own bone. No complications associated with this synthetic implant were reported and its use to manage skull defects can be strongly recommended. With respect to legal and accreditationrelated difficulties connected with bone fragments storage and thanks to the continuous cost reduction of synthetic implants will their importance grow in the future. Key words: decompressive craniectomy, bone substitute, craniotrauma.
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Affiliation(s)
- F Šámal
- Neurochirurgická klinika Fakultní nemocnice Královské Vinohrady a 3. lékařské fakulty Univerzity Karlovy, Praha
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Filip M, Tzaneva V, Dumitrascu DL. Fecal transplantation: digestive and extradigestive clinical applications. ACTA ACUST UNITED AC 2018; 91:259-265. [PMID: 30093802 PMCID: PMC6082619 DOI: 10.15386/cjmed-946] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2017] [Accepted: 12/06/2017] [Indexed: 12/19/2022]
Abstract
Background and aim Fecal transplantation or fecal material transplantation (FMT) became a hot topic in gastroenterology in recent years. Therefore it is important to disseminate the up-to-date information on FMT. The aim of the paper is to review the knowledge on FMT and its clinical applications. Methods An extensive review of the literature was carried out. Titles from Pubmed were searched and analyzed. A narrative review has been written with emphasis on indications of FMT in different conditions. Results The guidelines recommend FMT in relapsing infection with Clostridium difficile. Several attempts to use FMT in other conditions have been analyzed. Attempts were recorded in other bowel disorders like IBD, IBS, chronic constipation and even colorectal cancer. The attempt to change the microbiota by FMT in diabetes and obesity represent challenges for the future. Conclusions Fecal transplantation represents an important therapeutic method, intensively investigated these years. Beside the indication for persistent and recurrent Clostridium difficile infection, several attempts were undertaken in other intestinal diseases and in metabolic conditions. The efficiency of these applications has to be demonstrated.
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Affiliation(s)
- Mihaela Filip
- 2nd Deptartment Internal Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | | | - Dan L Dumitrascu
- 2nd Deptartment Internal Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
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Filip M, Todorova S, Shopska M, Ciobanu M, Papa F, Somacescu S, Munteanu C, Parvulescu V. Effects of Ti loading on activity and redox behavior of metals in PtCeTi/KIT-6 catalysts for CH4 and CO oxidation. Catal Today 2018. [DOI: 10.1016/j.cattod.2017.02.013] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Saplontai-Pop A, Moldovan M, Filip M, Oprean R, Ionescu C, Lazar Leordean V, Orasan O, Baldea I. Thiosulfinate Compounds from Allium cepa Extracts: Chromatographic Identification and Biocompatibility Testing. Chem Nat Compd 2017. [DOI: 10.1007/s10600-017-2189-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Orăşan O, Oprean R, Saplonţai-Pop A, Filip M, Carpa R, Saroşi C, Moldovan M, Man S. Antimicrobial activity and thiosulfinates profile of a formulation based on Allium cepa L. extract. OPEN CHEM 2017. [DOI: 10.1515/chem-2017-0021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
AbstractBackgroundAllium species extracts including Allium cepa L. contain sulfur compounds, known for their antiplatelet, antimicrobial, antineoplasic activities.MethodologyAntibacterial activity of a formulation based on A. cepa extracts-liquid and lyophilized samples, has been demonstrated using two classes of bacteria: Gram-positive (Staphylococcus aureus) and Gram-negative (Escherichia coli) and three methods: discs soaked with liquid extract, the wells method in the culture medium, filled with the liquid extract and lyophilized formulation extracts transformed by the incorporation of ultrapure water. The second part of this study includes identification of thiosulfinates compounds from the studied samples by high performance liquid chromatography - mass spectrometry (HPLC-MS).ResultsThe most important inhibition and the highest antibacterial effficiency were observed against Gram-positive bacteria, such as Staphylococcus aureus. The HPLC-MS thiosulfinates profile of the tested formulation extracts shows the presence of seven thiosulfinate compounds, MeS(O)S 1-propenyl (E,Z); n-PrS(O)S 1-propenyl-(E); n-PrS(O)S 1-propenyl-(Z); trans-zwiebelane; n-PrS(O)CHEtSS-1propenyl; 1-propenylS(O)CHEtSS1-propenyl, which may be responsible for antibacterial activity.ConclusionTesting antimicrobial effects using the three mentioned methods confirmed the antimicrobial activity of the tested samples based on A. cepa extracts, with a demonstrated content of seven thiosulfinate compounds.
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Affiliation(s)
- O. Orăşan
- 4th Medical Clinic, “Iuliu Haţieganu” University of Medicine and Pharmacy, 16-20 Republicii street, Cluj-Napoca, Romania, 400015
| | - R. Oprean
- Department of Analytical Chemistry, “Iuliu Haţieganu” University of Medicine and Pharmacy, 6 Louis Pasteur street, Cluj-Napoca, Romania, 400349
| | - A. Saplonţai-Pop
- Department of Cardiology, Municipal Clinical Hospital, 11 Tabacarilor street, Cluj-Napoca, Romania, 400139
| | - M. Filip
- “Raluca Ripan” Institute for Research in Chemistry, 30 Fântânele street, “Babeş-Bolyai” University, Cluj-Napoca, Romaina, 400294
| | - R. Carpa
- Department of Molecular Biology and Biotechnology, Faculty of Biology and Geology, „Babeş-Bolyai“ University, Kogălniceanu street, Cluj-Napoca, Romania, 400084
| | - C. Saroşi
- “Raluca Ripan” Institute for Research in Chemistry, 30 Fântânele street, “Babeş-Bolyai” University, Cluj-Napoca, Romaina, 400294
| | - M. Moldovan
- “Raluca Ripan” Institute for Research in Chemistry, 30 Fântânele street, “Babeş-Bolyai” University, Cluj-Napoca, Romaina, 400294
| | - S.C. Man
- Mother and Child Department, 3rd Department of Paediatrics, “Iuliu Haţieganu” University of Medicine and Pharmacy, Cluj-Napoca, Romania
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Niedzielska-Andres E, Pomierny-Chamioło L, Filip M. Corrigendum to “Changes of Nf-κB expression in the context of differential EAAT2 level in selected brain structures of rats showing addiction-vulnerable or addiction-resistant phenotype” [Toxicol. Lett. 238 (2015) s382]. Toxicol Lett 2016; 259:157. [DOI: 10.1016/j.toxlet.2016.04.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Abstract
Background and aims Irritable bowel syndrome (IBS) is one of the most frequent functional gastrointestinal disorders, having its subtypes related to the predominant bowel pattern: IBS with diarrhea (IBS-D), IBS with constipation (IBS-C), mixed IBS (IBS-M) or alternating IBS (IBS-A). Some patients alternate between subtypes (IBS-A). We looked for the prevalence of alternation between subtypes in patients with IBS. We also analyzed changes in pharmacological therapy specifically addressed to IBS. Methods We performed a retrospective observational study that included 60 patients diagnosed with IBS according to Rome III criteria. Patients were asked using a detailed structured interview about their stool form changes regarding previous six months. Alternators were defined as patients that changed IBS subtype over time (previous six months). Results Out of the 60 patients diagnosed with IBS, 18 patients (30%) were alternators. Of these, 8 patients (44%) changed twice the subtype. Two patients (66.66%) of the IBS-M subgroup shifted between subtypes. Eight patients (44.44%) changed medication over the six months. Four patients (22.2%) of the alternators were on double association of therapy (antispasmodics) addressed to IBS. Four patients (22.22%) discontinued medication. Conclusions Patients with IBS often change between subtypes even within six months. Alternators in our pilot study represented 30% of IBS patients. IBS-M seems to be the least stable phenotype. The rarest change is the shift between IBS-C and IBS-D. Alternators also often change their pharmacological treatment (antispasmodics).
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Affiliation(s)
- Alexandra Chira
- 2 Medical Department of Internal Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Mihaela Filip
- 2 Medical Department of Internal Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Dan Lucian Dumitraşcu
- 2 Medical Department of Internal Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
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Smaga I, Pomierny-Chamiolo L, Bystrowska B, Mohaissen T, Kot K, Filip M. Effects of chronic antidepressant treatment under blockade of CB2 receptors on the level of endocannabinoids in rat brain structures. Toxicol Lett 2015. [DOI: 10.1016/j.toxlet.2015.08.1088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Sadakierska-Chudy A, Frankowska M, Jastrzębska J, Wydra K, Miszkiel J, Przegalinski E, Filip M. Effects of cocaine extinction training on the rat hippocampal transcriptome. Toxicol Lett 2015. [DOI: 10.1016/j.toxlet.2015.08.693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Pomierny-Chamiolo L, Bystrowska B, Frankowska M, Miszkiel J, Niedzielska E, Filip M. mGlu5 and NMDA glutamate receptors in brain structures of rats: Dysregulation following cocaine relapse. Toxicol Lett 2015. [DOI: 10.1016/j.toxlet.2015.08.912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Borroto-Escuela DO, Oflijan J, Pinton L, Wydra K, Narváez M, Hansson A, Ferraro L, Filip M, Fuxe K. SY28FUNCTIONAL RELEVANCE FOR RECEPTOR-RECEPTOR INTERACTION IN STRESS AND ADDICTION RELATED PROCESSES: NEW CONCEPTS IN NEUROPSYCHOPHARMACOLOGYSY28-1ADENOSINE A2A-DOPAMINE D2 HETERORECEPTOR COMPLEXES IN THE BRAIN: RELEVANCE FOR COCAINE ADDICTION. Alcohol Alcohol 2015. [DOI: 10.1093/alcalc/agv076.113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Filip M, Glodzik J, Mikolajczyk T, Salakowski A, Rewiuk K, Nowak W, Grodzicki T, Guzik T. Modulatory effect of physical excercise on immune system in prehypertensive patients – A randomized cross-over study. Atherosclerosis 2015. [DOI: 10.1016/j.atherosclerosis.2015.04.921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Gawlik M, Krzyżanowska W, Bogumiła Gawlik M, Filip M. Optimization of determination of reduced and oxidized glutathione in rat striatum by HPLC method with fluorescence detection and pre-column derivatization. ACTA CHROMATOGR 2014. [DOI: 10.1556/achrom.26.2014.2.10] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Filip M, Nicolae M, Filip A, Dragne C, Triantafyllidis G, Antonescu C. Why we use AT.Lisa multifocals? Oftalmologia 2014; 58:61-65. [PMID: 25842626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
In this paper, the authors try to motivate their preference for implanting AT.Lisa Multifocals from all other premium IOL's from the market. It is emphasized, through clinical examples, that their choice comes after a long experience with this type of mul- tifocals IOL's. We make a short presentation of this particular type of MIOL's with their good but also weak points and try to motivate our decision to change from other types. We present the steps that each patient has to follow in our clinic prior to surgery itself, stressing out the idea that the discussion with the patient is very important in taking a decision regarding the implantation of a Premium IOL.
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Filip M, Apostolescu M, Filip A, Dragne C, Nicolae M, Triantafyllidis G. [Pseudoexfoliative glaucoma]. Oftalmologia 2013; 57:3-7. [PMID: 24386786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Secondary open-angle glaucoma, characterized by the deposition of whitish, fibrillar material within the structures of the anterior segment of the eye.
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Affiliation(s)
- M Filip
- Clinica Ama Optimex, Bucureşti
| | | | - A Filip
- Clinica Ama Optimex, Bucureşti
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Matek J, Vajtr D, Krška Z, Springer D, Filip M, Zima T. [Protein S100b in differential diagnosis of brain concussion and superficial scalp injury in inebriated patients]. Rozhl Chir 2012; 91:545-549. [PMID: 23157474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
INTRODUCTION Concussion cannot be differentiated from superficial scalp injury, especially in inebriated or uncooperative patients. This can have serious medical or forensic consequences. The aim of the study was to determine whether serum concentrations of S-100b in mild traumatic brain injury (MTBI) patients are significantly higher than those in patients with superficial scalp injury with scalp wound and alcohol intoxication. MATERIAL AND METHODS A total of 50 patients with head injury, 25 with mild concussion without scalp wound and alcohol intoxication, 25 superficial scalp injury patients with scalp wound and clinical signs of inebriety. Neurological status and cranial CT scan were evaluated 60-120 minutes after injury in all the 50 patients to exclude focal cerebral injury or skull fracture. RESULTS The serum levels of S-100b were significantly increased in patients with concussion (median 0.36 ± 0.15 μg/l ) in comparison with the group of patients with scalp injury and alcohol intoxication (median 0.09 ± 0.002 μg/l). All 50 patients had a normal cranial CT finding and neurological status. In all superficial scalp injury patients alcohol intoxication was confirmed (0.96 - 3.11š). CONCLUSION We proved significantly higher values of S-100b in patients with brain concussion. Diagnostically decisive value of S-100b concentration in the serum was set at 146 μg/l and higher (94% sensitivity and 100% specificity). Alcohol intoxication (up to 3.11 š) and scalp wound seem to have had no crucial impact on serum S-100b level.
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Affiliation(s)
- J Matek
- Chirurgická klinika VFN 1. LF UK v Praze.
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Fuxe K, O. Borroto-Escuela D, Marcellino D, Romero-Fernandez W, Frankowska M, Guidolin D, Filip M, Ferraro L, Woods A, Tarakanov A, Ciruela F, F. Agnati L, Tanganelli S. GPCR Heteromers and their Allosteric Receptor-Receptor Interactions. Curr Med Chem 2012; 19:356-63. [DOI: 10.2174/092986712803414259] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2011] [Revised: 11/01/2011] [Accepted: 11/03/2011] [Indexed: 11/22/2022]
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Filip M, Zaniewska M, Frankowska M, Wydra K, Fuxe K. The Importance of the Adenosine A2A Receptor-Dopamine D2 Receptor Interaction in Drug Addiction. Curr Med Chem 2012; 19:317-55. [DOI: 10.2174/092986712803414231] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2011] [Revised: 10/07/2011] [Accepted: 10/11/2011] [Indexed: 11/22/2022]
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Przegalinski E, Chojnacka-Wojcik E, Filip M. Stimulation of postsynaptic 5-HT1A receptors is responsible for the anticonflict effect of ipsapirone in rats. J Pharm Pharmacol 2011; 44:780-2. [PMID: 1360535 DOI: 10.1111/j.2042-7158.1992.tb05521.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Abstract
Ipsapirone (1·25–10 mg kg−1), a non-benzodiazepine anxiolytic drug with high affinity for 5-hydroxytryptamine1A (5-HT1A) receptors, increased dose-dependently the number of punished licks in the drinking conflict test (Vogel test) in rats. The anticonflict effect of the drug administered at a dose of 5 mg kg−1 was not modified in animals with lesions of 5-HT neurones, produced by p-chloroamphetamine (PCA, 2× 10 mg kg−1). The anticonflict effect of ipsapirone in PCA-pretreated rats was antagonized by the 5-HT1A receptor and α1-adrenoceptor antagonist NAN-190 (1-(2-methoxyphenyl)-4-[4-(2-phthalimmido)]butylpiperazine hydrobromide; 0·5–1 mg kg−1), but not by the selective α1-adrenoceptor blocker prazosin (0·5 mg kg−1). Neither NAN-190 nor prazosin affected the punished response in PCA-pretreated rats. The present results indicate that the anticonflict effect of ipsapirone depends on stimulation of postsynaptic 5-HT1A receptors.
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Affiliation(s)
- E Przegalinski
- Institute of Pharmacology, Polish Academy of Sciences, Kraków
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Adamczyk P, McCreary AC, Przegalinski E, Mierzejewski P, Bienkowski P, Filip M. The effects of fatty acid amide hydrolase inhibitors on maintenance of cocaine and food self-administration and on reinstatement of cocaine-seeking and food-taking behavior in rats. J Physiol Pharmacol 2009; 60:119-125. [PMID: 19826190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 09/22/2008] [Accepted: 07/15/2009] [Indexed: 05/28/2023]
Abstract
Some empirical evidence suggests that the endocannabinoids (eCB) (e.g. anandamide) may play an important role in cocaine addiction. The eCB act as a retrograde messengers activating CB receptors at the presynaptic membrane and are degraded by enzymatic actions of fatty acid amide hydrolase (FAAH). The present study aimed to examine the effect of the FAAH inhibitors, phenylmethylsulphonyl fluoride (PMSF; i.p.) or cyclohexylcarbamic acid 3-carbamoyl biphenyl-3-yl ester (URB597; i.p.) on the cocaine- or food-maintained self-administration as well as on the cocaine-seeking or food-taking behaviors in rats. Male Wistar rats were implanted with a catheter (iv.) and trained to self-administer cocaine (0.5 mg/kg/infusion) on a fixed ratio 5 schedule of reinforcement with a conditioned stimulus (tone+light). After self-administration stabilized, extinction/reinstatement procedures were carried out during which the rats were tested for the response reinstatement induced by cocaine (10 mg/kg, ip) or a cue (light+tone). The food (sweetened milk) self-administration and extinction/reinstatement procedures were conducted in a manner resembling cocaine self-administration. Neither PMSF (30-120 mg/kg) nor URB597 (0.1-3 mg/kg) affected cocaine self-administration. PMSF, 60 mg/kg, significantly reduced cocaine-induced reinstatement and at 120 mg/kg (combined with the challenge dose of cocaine) it evoked behavioral disruption. PMSF (60-120 mg/kg) dose-dependently inhibited cue-induced reinstatement. URB597 (1-3 mg/kg) attenuated both cocaine- and cue-induced drug-seeking behaviors. PMSF (60 mg/kg) decreased food self-administration. Toward reinstatement of food-taking behavior PMSF (60-120 mg/kg) and URB597 (3 mg/kg) showed inhibitory effects. Our results indicate that FAAH inhibitors could be potent modulators of motivational and conditioned aspects of goal-directed behaviors with less prominent effects on consumatory behaviors.
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Affiliation(s)
- P Adamczyk
- Department of Pharmacology, Institute of Pharmacology, Polish Academy of Sciences, Cracow, Poland
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Fuxe K, Marcellino D, Rivera A, Diaz-Cabiale Z, Filip M, Gago B, Roberts D, Langel U, Genedani S, Ferraro L, de la Calle A, Narvaez J, Tanganelli S, Woods A, Agnati L. Receptor–receptor interactions within receptor mosaics. Impact on neuropsychopharmacology. ACTA ACUST UNITED AC 2008; 58:415-52. [DOI: 10.1016/j.brainresrev.2007.11.007] [Citation(s) in RCA: 167] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2007] [Revised: 11/26/2007] [Accepted: 11/29/2007] [Indexed: 01/01/2023]
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Adamczyk P, Gołda A, McCreary AC, Filip M, Przegaliński E. Activation of endocannabinoid transmission induces antidepressant-like effects in rats. J Physiol Pharmacol 2008; 59:217-228. [PMID: 18622041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 12/12/2007] [Accepted: 04/25/2008] [Indexed: 05/26/2023]
Abstract
Recent reports indicate that endocannabinoid (eCB) system may be involved in depression and in the antidepressant-like activity demonstrated in experimental models. The present study examined the effects of the eCB uptake inhibitor 4-hydroxyphenyl-5Z,8Z,11Z,14Z-eicosatetraenamide (AM404; 0.1-3 mg/kg), the fatty acid amide hydrolase (FAAH) inhibitor cyclohexylcarbamic acid 3-carbamoylbiphenyl-3-yl ester (URB597; 0.03-0.3 mg/kg), the cannabinoid CB(1) receptor agonist (-)-cis-3-[2-hydroxy-4-(1,1-dimethylheptyl) phenyl]-trans-4-(3-hydroxypropyl)-cyclohexanol (CP55,940; 0.03-0.3 mg/kg) and the CB(1) receptor antagonist rimonabant (0.3-3 mg/kg) on immobility time in the forced swim test (FST) in rats. Moreover, the effects of AM404, CP55,940 and URB597 on the antidepressant-like activity of imipramine and citalopram in the FST were also examined. We found that AM404 (0.3-3 mg/kg), CP55,940 (0.1 mg/kg) and URB597 (0.1-0.3 mg/kg) reduced the immobility time of rats, while rimonabant (0.3-3 mg/kg) was inactive in this respect. We also observed that the anti-immobility effects of AM404 (1 mg/kg), CP55,940 (0.1 mg/kg) and URB597 (0.3 mg/kg), but not of imipramine (30 mg/kg), were blocked by rimonabant (3 mg/kg). In another set of experiments we showed that the inactive dose of AM404 (0.1 mg/kg) potentiated the effects of the inactive doses of imipramine (15 mg/kg) or citalopram (30 mg/kg), while CP55,940 (0.03 mg/kg) and URB597 (0.03 mg/kg) enhanced the effect of imipramine only. None of the drugs studied, given alone or in combination, increased the basal locomotor activity of rats. Our results indicate that activation of the eCB system induces antidepressant-like effects in the FST in rats, and that these effects are mediated by CB(1) receptors. Moreover, they also indicate that agents activating eCB transmission enhance the anti-immobility responses to antidepressant drugs.
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Affiliation(s)
- P Adamczyk
- Laboratory of Drug Addiction Pharmacology, Institute of Pharmacology Polish Academy of Sciences, Kraków, Poland
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Filip M, Antkiewicz-Michaluk L, Zaniewska M, Frankowska M, Gołda A, Vetulani J, Przegaliński E. Effects of 1-methyl-1,2,3,4-tetrahydroisoquinoline on the behavioral effects of cocaine in rats. J Physiol Pharmacol 2007; 58:625-639. [PMID: 18195477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 10/02/2007] [Accepted: 11/05/2007] [Indexed: 05/25/2023]
Abstract
The efficacy of 1-methyl-1,2,3,4-tetrahydroisoquinoline (1MeTIQ), a member of endogenous tetrahydroisoquinolines, in cocaine- and food-maintained responding in self-administration procedures under a fixed ratio 5 schedule of reinforcement as well as in cocaine and food seeking behaviors in male Wistar rats was examined. The effects of 1MeTIQ on cocaine discrimination and on basal locomotor activity were also assessed. In rats trained to self-administered either cocaine (0.5 mg/kg/injection) paired with the cue (light+tone) or food under a fixed ratio 5 schedule of reinforcement, 1MeTIQ (25 - 50 mg/kg) dose-dependently decreased the cocaine-maintained responding, but did not alter the food-maintained responding. 1MeTIQ (25 - 50 mg/kg) decreased the cocaine seeking behavior reinstated by a noncontingent presentation of cocaine (10 mg/kg, i.p.), but altered neither behavior reinstated by a discrete cue (tone+light) nor food-induced reinstatement. In rats trained to discriminate cocaine (10 mg/kg) from saline in water-reinforced fixed ratio 20 task, pretreatment with 1MeTIQ resulted in neither substitution nor significant alterations in the cocaine (1.25 - 10 mg/kg)-induced discriminative stimulus effects. 1MeTIQ (25 - 50 mg/kg) did not produce also a significant changes in basal horizontal activity. In conclusion, our present results outline a significance of exogenously applied 1MeTIQ in attenuating drug-evoked relapses to cocaine as well as the direct rewarding properties of cocaine (that model the cocaine-induced "high"), but not cocaine subjective effects. Moreover, a dissociation between effects of 1MeTIQ on cocaine vs. food-maintained responding was demonstrated.
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Affiliation(s)
- M Filip
- Department of Pharmacology, Institute of Pharmacology, Polish Academy of Sciences, Kraków, Poland.
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Abstract
N-oleoyl-dopamine (OLDA), a condensation product of oleic acid and dopamine (DA), is a bioactive lipid whose biological functions are not yet fully explored. The compound crosses the blood-brain barrier and might be considered as a carrier of DA into the brain. In this study we sought to determine whether OLDA would influence locomotor behavior and whether the central DA system would be involved in such influence. We addressed this issue by investigating horizontal locomotor activity in male Wistar rats after intraperitoneal administration of OLDA, 5-20 mg/kg, before and after pre-treatment with haloperidol, a D2 receptor antagonist. We found that OLDA caused a prompt stimulation of locomotor activity, with a bell-shaped dose-response. The maximum stimulatory effect was observed after 10 mg/kg of OLDA where the mean distance traveled by rats during a 2-hour test increased to 1213+/-196(SE) cm from the 403+/-89 cm in the vehicle-treated rats (P<0.05). This effect was dose-dependently antagonized by haloperidol (0.1-0.2 mg/kg). The results support the hypothesis that the OLDA-induced hyperlocomotion was mediated by the stimulation of DA systems. Using in vitro assays, we further demonstrated that OLDA is a stable compound that resists hydrolysis over a 2-hour period and thus the integral OLDA compound exerted DA-like effects. We conclude that OLDA is a potential brain modifier of motor behavior, the biological consequences of which remain to be explored.
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Affiliation(s)
- E Przegaliński
- Institute of Pharmacology, Polish Academy of Sciences, Krakow, Poland
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Antkiewicz-Michaluk L, Filip M, Michaluk J, Romańska I, Przegaliński E, Vetulani J. An endogenous neuroprotectant substance, 1-methyl-1,2,3,4-tetrahydroisoquinoline (1MeTIQ), prevents the behavioral and neurochemical effects of cocaine reinstatement in drug-dependent rats. J Neural Transm (Vienna) 2006; 114:307-17. [PMID: 16897599 DOI: 10.1007/s00702-006-0546-y] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2006] [Accepted: 06/22/2006] [Indexed: 11/29/2022]
Abstract
Drug abuse disorder is induced by a variety of substances and results from their interaction with the brain reward system. It is characterized by a high frequency of relapse, usually associated with to craving. In this study we investigated the effects of 1-methyl-1,2,3,4-tetrahydroisoquinoline, an endogenous compound with antidopaminergic and neuroprotective activity, on cocaine-induced reinstatement in cocaine-dependent, self-administering rats. 1-methyl-1,2,3,4-tetrahydroisoquinoline (50 mg/kg i.p.) completely inhibited the expression of reinstatement of cocaine self-administration and accompanying neurochemical changes induced by a single priming cocaine dose (10 mg/kg i.p.). The priming cocaine dose inhibited dopamine metabolism in the structures containing nerve endings (frontal cortex, nucleus accumbens, and striatum) but not in the substantia nigra and ventral tegmental area. A behaviorally active dose of 1-methyl-1,2,3,4-tetrahydroisoquinoline administered 30 min before a priming dose of cocaine significantly increased the dopamine concentration in the limbic structures, and strongly inhibited dopamine metabolism in the substantia nigra and ventral tegmental area. Cocaine also inhibited noradrenaline and serotonin metabolism, and 1-methyl-1,2,3,4-tetrahydroisoquinoline abolished the inhibition in noradrenaline metabolism, while it intensified the inhibition of serotonin metabolism. Our results strongly support the view that 1-methyl-1,2,3,4-tetrahydroisoquinoline, an endogenous compound, has considerable potential as a drug for combating substance abuse disease through the attenuation of craving.
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Affiliation(s)
- L Antkiewicz-Michaluk
- Department of Biochemistry, Institute of Pharmacology, Polish Academy of Sciences, Cracov, Poland.
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Filip M, Dragne C, Filip A, Măgureanu M, Zemba M, Asandi R. [Toxic anterior segment syndrome]. Oftalmologia 2006; 50:27-9. [PMID: 17345798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
The authors present two cases of TASS which occurred consequent upon anterior chamber administration of cefuroxime(Axetin). The ESCRS guidelines on prevention, investigation and management of postoperative endophthalmitis recommends intracameral injection of an antibiotic agent (cephalosporin) at the conclusion of surgery. In our group of patients TASS occurred. Elements of diagnosis and treatment in TASS are discussed. As a conclusion to our study we decided to discontinue cefuroxime administration.
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Affiliation(s)
- M Filip
- Clinica de Oftalmologie Amaoptimex, Bucureşti.
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Apostol S, Filip M, Nechita A, Filip A. A lymphoid conjunctival tumor--clinical aspects; therapeutical options. Oftalmologia 2005; 49:26-9. [PMID: 15934333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
A female woman, 34 years old, having a history of 10 years of conjunctival allergy, came to our Clinic for a pale pink mass lesion, occupying both the upper and the lower fornices. The therapeutical and also investigational approach was to excise all suspected tissue and to biopsy to determine if benign or malignant (clinically indistinguishable). The conjunctival biopsy revealed a non-Hodgkin malignant conjunctival MALT lymphoma. A complete medical check-up performed by a hematologist-oncologist confirmed that the disease was localized. In this case, of ocular adnexal MALT lymphoma with localised disease, we took into account local treatment: external beam radiation therapy, topical use of chemotherapy agents and biologic therapy (subconjunctival injections with interferon-alpha). Systemic chemotherapy was avoided. Interesting results were obtained with
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Dragne C, Filip M, Magureanu M, Nicodin A. [Anterior uveal malignant melanoma with subconjunctival extension--a clinical case]. Oftalmologia 2005; 49:22-5. [PMID: 15934332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
The authors present the case of a patient with intraocular tumour and secondary glaucoma, which has been surgically treated for acute angle-closure glaucoma in a local hospital. Patient sits for examination at the clinic 11 months after surgery. Multiple conjunctiva pigmented metastasis are present at physical examination. Chosen therapeutic approach: exenteration.
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Affiliation(s)
- Carmen Dragne
- Clinica de Oftalmologie, Spitalul Clinic de Urgenta Militar Central
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Filip M, Apostol S. [Post-operatory biometry and refraction results estimated and refraction surprises--clinical study]. Oftalmologia 2004; 56:11-4. [PMID: 12886674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/03/2023]
Abstract
Preoperative biometry has a major influence on the success or failure of IOL implantation procedures. The paper wishes to demonstrate the significance of this manoeuvre for the refraction and visual outcome and for the postoperative satisfaction rate of the patients. The clinical study has rulled out for one year period and a number of 239 patients suffered a IOL implantation procedure (cataract or lens extraction for refractive purposes). The preoperative biometry was always necessary. We used one of the existing IOL power calculation formula (SRK II, SRK T, Holladay). The surgeon decided about the IOL power, always after discussing with the patient their postoperative refractive expectations. The postoperative refraction was, in the majority of cases, the estimated refraction and the errors were similar with those from the literature. Refractive surprises of several diopters were registered in high myopic and hyperopic eyes or in cases of coexisting ocular diseases which have modified the anatomical parameters of the eye. In conclusion, small errors in calculation can have large effects on visual outcome. This problem will be solved in the future, because the field is evolving rapidly driven by a new understanding of the anatomy of the eye and new hardware for measuring that anatomy.
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Affiliation(s)
- M Filip
- Clinica de Oftalmologie Ama Optimex Bucureşti
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Zemba M, Filip M, Bobeico V, Andrei S, Anton O. [Cataract surgery in Romania--2003]. Oftalmologia 2004; 48:64-9. [PMID: 15782766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
AIM to evaluate cataract surgery performed in Romania analyzing: --the number of cataract surgery performed in 2003; --the surgical technique used: intracapsular extraction, extracapsular extraction, phacoemulsification; --the number and type of intraocular lenses used; --the number of ophthalmologists that performed cataract surgery; MATERIAL AND METHOD --a questionnaire was sent to all ophthalmologists which do cataract surgery. RESULTS --38,000 surgeries for cataract were performed in 2003; --the surgical techniques used were : Phacoemulsification (18,000 cases), classic extracapsular extraction ( 19,000 cases) and intracapsular extraction (1000 cases); --28,500 rigid and 8,000 foldable intraocular lenses were implanted; - 223 ophthalmologists perform cataract surgery in Romania.
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Affiliation(s)
- M Zemba
- Spitalul Clinic de Urgentă Militar Central
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Apostol S, Filip M. New concepts in etiology, clinic and management of postoperative endophthalmitis. Oftalmologia 2003; 55:30-3. [PMID: 12723174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
Abstract
THE AIM OF THE PAPER In the last few years, as a result of the continuing changing of the ethiological, clinical and therapeutical aspects of the postoperative endophthalmitis, there are a lot of efforts to find the adequate means to prevent and to treat this severe complication of cataract surgery. So, the paper presents the most actual therapeutical approaches in the field. MATERIAL AND METHODS The goals of treatment of postoperative endophthalmitis are: to regain vision and to save the bulb. From the prophylactic techniques, preoperative povidone-iodine antisepsis is the most recommended procedure for decreasing the risk of endophthalmitis related to surgery. The main elements of the modern treatment of endophthalmitis are medical treatment by intravitreal injections or by systemic drugs and surgical treatment with vitrectomy. CONCLUSIONS Although endophthalmitis remains a potential cause of visual loss, both medical therapies and surgical techniques have evolved so that prognosis is not always as negative as it used to be.
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Filip M, Apostol S, Asandi R. [Particular aspects of treatment in diabetic eye cataract]. Oftalmologia 2003; 54:36-8. [PMID: 12723195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
Abstract
The knowing of the ocular consequences of diabetes is essential for the evaluation of the risk factors for the cataract surgery. The clinical study was made on a total number of 19 diabetic patients (3 with insulin dependent diabetes and the rest with noninsulin dependent diabetes), which were operated for cataract from september 2001 till march 2002. Preoperatory preparation presumed a good metabolic control of diabetes and a very carefully examination of the retina. The surgical technique was the extracapsular cataract extraction, followed by the implantation of a posterior chamber IOL, respectively phacoemulsification with the implantation of a foldable lens. The presence of a proliferative diabetic retinopathy, of a rubeosis iridis, of the neovascularization of the angle, or the preexistence of the vitreoretinal surgery (vitrectomy) were the main factors which dictated the anatomical and functional postoperatory prognosis. In conclusion, evenly the diabetic patient is a highly risk patient, the adequate preoperator preparation, the right treatment and a carefully follow-up could assure the success of the surgery in those cases.
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Affiliation(s)
- M Filip
- Clinica de Oftalmologie AMA Optimex, Bucureşti
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Apostol S, Filip M, Stefan C, Paraschiv M. [Laser in glaucoma treatment ; 1-year personal experience]. Oftalmologia 2003; 52:81-6. [PMID: 12677807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
THE AIM OF THE PAPER The paper establishes the role of the laser treatment in the complex treatment of glaucoma and realizes a comparison between our clinical results and the results from the literature. MATERIAL AND METHODS Along a period of one year, we have treated a number of 117 glaucoma patients: Open angle glaucoma (POAG), angle closure glaucoma (ACG), normal tension glaucoma (NTG) and symptomathic narrow anterior chamber. The complex treatment consists of medication, laser and/or surgery. To treat the patients, we have used the VISULAS 532 Combi laser, manufactured by Zeiss. RESULTS The results are presented in a synthetic way for different pathological entities and different methods of laser treatment. CONCLUSIONS In glaucoma, laser treatment represents a step between the medical treatment and surgery and is a very good alternative when the medication in inefficient or is not well tolerated. Our results are, in majority, similar with those from the literature.
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Apostol S, Filip M, Dragne C, Filip A. Dry eye syndrome. Etiological and therapeutic aspects. Oftalmologia 2003; 59:28-31. [PMID: 15083682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
"Dry eye syndrome" is a common disorder of the tear film that results from inadequate tear production, excessive tear evaporation or abnormality in mucin or lipid components of the tear film. A number of 53 patients suffering from dry eye syndrome were followed up for a period of 18 months. The study group was heterogeneous, including a lot of conditions accompanied by dry eye syndrome: Syogren's syndrome, lupus erythematous, ocular rosacea, patients with systemic treatments with antidepressants, betablockers, diuretics, oral contraceptives, glaucomatous patients with topical beta-blockers, postmenopausal women, aging people, computer users and long-term contact lens wearers. The therapeutical options were dictated by the severity of the syndrome: substitution therapy, treatment of the underlying eyelid diseases, modifying of the environmental conditions and treatment of the complications in the most severe cases. The new pathological approach is innovative and it may provide a real therapeutical measure for this condition: topical A Cyclosporine and androgen drops.
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Nechita A, Filip M, Gafencu O, Măgureanu M, Barbu C, Manga C, Grigorian F. [High-altitude retinopathy]. Oftalmologia 2002; 53:17-20. [PMID: 11915684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
High-altitude retinopathy is a very rare ocular disease in our country, which can occur isolately or as a part of high-altitude illness. This paper presents the case of a patient with high-altitude illness and the diagnosis and treatment problems of this case.
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Nechita A, Cârstocea B, Filip M. [Choroidal neovascularization]. Oftalmologia 2002; 53:8-12. [PMID: 11915698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
Choroidal neovascularization (CNV) may occur in any ocular condition affecting the integrity of the choriocapillaris-Bruch's membrane-retinal pigment epithelium-outer retinal layer complex. CNV in the macula is a major cause of severe central visual loss. A variety of clinical symptoms suggest the diagnosis of CNV. Fluorescein and indocyanine green angiography play a very important role in the detection and precise localization of CNV in relation to the centre of the foveal avascular zone. In the present, CNV benefits by many treatment possibilities. The goal of treatment is specifically to decrease the risk of visual acuity loss.
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Przegaliński E, Filip M, Papla I, Czepiel K. Effects of 5-HT1B receptor ligands microinjected into the accumbal shell or core on the cocaine-induced locomotor hyperactivity in rats. J Physiol Pharmacol 2002; 53:383-94. [PMID: 12369736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
Abstract
The present study was designed to examine the effect of 5-HT1B receptor ligands microinjected into the subregions of the nucleus accumbens (the shell and the core) on the locomotor hyperactivity induced by cocaine in rats. Male Wistar rats were implanted bilaterally with cannulae into the accumbens shell or core, and then were locally injected with GR 55562 (an antagonist of 5-HT1B receptors) or CP 93129 (an agonist of 5-HT1B receptors). Given alone to any accumbal subregion, GR 55562 (0.1-10 microg/side) or CP 93129 (0.1-10 microg/side) did not change basal locomotor activity. Systemic cocaine (10 mg/kg) significantly increased the locomotor activity of rats. GR 55562 (0.1-10 microg/side), administered intra-accumbens shell prior to cocaine, dose-dependently attenuated the psychostimulant-induced locomotor hyperactivity. Such attenuation was not found in animals which had been injected with GR 55562 into the accumbens core. When injected into the accumbens shell (but not the core) before cocaine, CP 93129 (0.1-10 microg/side) enhanced the locomotor response to cocaine; the maximum effect being observed after 10 microg/side of the agonist. The later enhancement was attenuated after intra-accumbens shell treatment with GR 55562 (1 microg/side). Our findings indicate that cocaine induced hyperlocomotion is modified by 5-HT1B receptor ligands microinjected into the accumbens shell, but not core, this modification consisting in inhibitory and facilitatory effects of the 5-HT1B receptor antagonist (GR 55562) and agonist (CP 93129), respectively. In other words, the present results suggest that the accumbal shell 5-HT1B receptors play a permissive role in the behavioural response to the psychostimulant.
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Affiliation(s)
- E Przegaliński
- Department of Pharmacology, Institute of Pharmacology, Polish Academy of Sciences, Kraków.
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50
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Kubera M, Filip M, Basta-Kaim A, Nowak E, Budziszewska B, Tetich M, Holan V, Korzeniak B, Przegaliński E. The effect of amphetamine sensitization on mouse immunoreactivity. J Physiol Pharmacol 2002; 53:233-42. [PMID: 12120898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
Recent studies indicate a role of the immune system in the behavioral effects of amphetamine in rodents. In the present study we attempted to find a connection between the behavioral changes induced by repeated, intermittent administration of amphetamine and some immunological consequences of sensitization to amphetamine in mice. Male Albino Swiss mice were treated repeatedly (for 5 days) with amphetamine (1 mg/kg, i.p.). On day 9, they received a challenge dose of amphetamine (1 mg/kg). Acute administration of amphetamine increased their locomotor activity by ca. 40%. In animals treated repeatedly with amphetamine, the challenge dose of the psychostimulant induced behavioral sensitization, i.e. the higher locomotor activation as compared with that after its first administration to mice. Immune functions were evaluated by the ability of splenocytes to proliferate and to produce cytokines such as interferon gamma (IFN-gamma), interleukin (IL)-4 and IL-10. Acute amphetamine administration significantly decreased, by ca. 30% and 25%, the proliferation of splenocytes in response to an optimal and a suboptimal dose of concanavalin A (Con A), respectively, and increased their ability to produce IL-4. Chronic intermittent treatment with amphetamine significantly decreased, by ca. 65% and 50%, the proliferative response of T cells to an optimal and a suboptimal dose of Con A, respectively, and diminished by 20% the metabolic activity of splenocytes. The above data showed that both acute and chronic amphetamine administration diminished some aspects of the cell-mediated immunity; nevertheless, immunosuppression was particularly evident in amphetamine-sensitized mice. Our findings seem to indicate possible importance of monitoring and correcting immune changes in the therapy of amphetamine addiction.
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Affiliation(s)
- M Kubera
- Department of Endocrinology, Institute of Pharmacology, Polish Academy of Sciences, Kraków.
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