Search

Abstract Background Hepatocellular Carcinoma (HCC) can be classified as one of the most common malignancies worldwide. There is scarcity of the published data on the risk factors for HCC in the Gulf Cooperation Council countries specifically Kuwait. Therefore, this case-control study sought to examine the risk factors associated with HCC in Kuwait. Methods Fifty-three histopathologically confirmed HCC cases were recruited from the Kuwait Cancer Control Center Registry. One hundred ninety-six controls (1:4 ratio) were selected from medical and/ or surgical outpatient’s clinics at all six public hospitals of Kuwait. A structured questionnaire was used to collect the data both from cases and controls through face-to-face interviews. A multivariable logistic regression model was fitted to the case-control data. Adjusted odds ratios (ORadj) and their 95% confidence intervals (CI) were computed using the parameters’ estimates of the final model and used for interpretation of the model. Results The HCC cases compared with the controls were 41.6 times more likely to have had the history of non-alcoholic fatty liver disease (NAFLD) (ORadj = 41.6; 95% CI: 8.9–193.5; p

Background: Hepatocellular Carcinoma (HCC) can be classified as one of the most common malignancies worldwide. There is scarcity of the published data on the risk factors for HCC in the Gulf Cooperation Council countries specifically Kuwait. Therefore, this case-control study sought to examine the risk factors associated with HCC in Kuwait. Methods: Fifty-three histopathologically confirmed HCC cases were recruited from the Kuwait Cancer Control Center Registry. One hundred ninety-six controls (1:4 ratio) were selected from medical and/ or surgical outpatient's clinics at all six public hospitals of Kuwait. A structured questionnaire was used to collect the data both from cases and controls through face-to-face interviews. A multivariable logistic regression model was fitted to the case-control data. Adjusted odds ratios (ORadj) and their 95% confidence intervals (CI) were computed using the parameters' estimates of the final model and used for interpretation of the model. Results: The HCC cases compared with the controls were 41.6 times more likely to have had the history of non-alcoholic fatty liver disease (NAFLD) (ORadj = 41.6; 95% CI: 8.9–193.5; p < 0.001). The cases compared with the controls were more likely to have reported the history of heavy alcohol drinking (ORadj = 14.2; 95% CI: 1.2–173.4; p = 0.038). Furthermore, compared with the controls, the HCC cases tended to frequently consume milk and/or milk substitutes (≥ 3 glass/ week) (ORadj = 7.2; 95% CI: 1.2–43.4). Conversely however, there was a significant protective effect if the participants reportedly have had regularly used olive oil in their routine diet as a source of fat (ORadj = 0.17; 95% CI: 0.04–0.80) or regularly used non-steroid anti-inflammatory drugs (NSAIDs) (ORadj = 0.20; 95% CI: 0.05–0.71). Conclusions: This study showed that heavy alcohol consumption, NAFLD history, and excessive consumption of milk/ milk substitutes were associated with a significantly increased HCC risk. Conversely however, regular use of olive oil in the diet as a source of fat or regular use of NSAIDs had a significantly protective effect against HCC risk. Adapting healthy dietary habits and preventing/ treating NAFLD may minimize the HCC risk. Future research with a larger sample size may contemplate validating the results of this study and unraveling additional risk factors contributing to HCC risk. The resultant data may help design and implement evidence-based educational programs for the prevention of HCC in this and other similar settings. [ABSTRACT FROM AUTHOR]

Abstract Aims The use of non-steroid anti-inflammatory drugs (NSAIDs) is conventional in management of postoperative pain in cancer patients, and further investigations have reported that some of these drugs correlated with the outcome in cancers. However, the prognostic value of the use of NSAIDs during surgery in non-small cell lung cancer (NSCLC) patients has been less addressed. Methods NSCLC patients staged I–III are retrospectively enrolled, and the data of the use of NSAIDs during surgery are collected. Patients are divided into two subgroups according to the use intensity (UI) (low or high) of the NSAIDs, which was calculated by the accumulate dosage of all the NSAIDs divided by the length of hospitalization. The differences of the clinical features among these groups were checked. And the disease-free survival (DFS) and overall survival (OS) differences in these groups were compared by Kaplan–Meier analysis; risk factors for survival were validated by using a Cox proportional hazards model. Results The UI was significant in predicting the DFS (AUC = 0.65, 95% CI: 0.57–0.73, P = 0.001) and OS (AUC = 0.70, 95% CI: 0.59–0.81, P = 0.001). Clinical features including type of resection (P = 0.001), N stages (P

Post-marketing hepatotoxicity findings are more common or occur much later. NSAIDs (non-steroidal anti-inflammatory drugs) like ibuprofen are consumed in large quantities around the world. NSAIDs have a low incidence of hepatotoxicity but their wide use makes them a major contributor to drug-induced liver injury. Hepatitis is linked to systemic oxidative stress which results in cellular necrosis and fibrosis, as well as tissue lipoprotein peroxidation and glutathione depletion. Given the lack of safe and effective anti-hepatitis drugs in medicine today, natural substances appear to be a promising and safe alternative. Propolis and chitosan are considered natural substances that have a protective effect on the hepatocytes. The purpose of this study was to validate the protective effect of propolis/chitosan nanoparticle extracts on ibuprofen-induced hepatotoxicity. Thirty (30) albino rats were used for the experiment. Animals were exposed to ibuprofen (400 mg/kg body weight/day) for 4 weeks (7 days/week) followed by treatment with propolis (200 mg/kg body weight/day) and chitosan extract (200 mg/kg body weight/day) separately and also in combination for consecutive 4 weeks. This study revealed a significant increase in serum transaminases, alkaline phosphatase, albumin, and total bilirubin in serum, as well as an increase in lipid peroxidation (MDA) and nitric oxide (NO). Furthermore, GSH, GST, and SOD decreased significantly in the group that was exposed to ibuprofen. Furthermore, there was a significant increase in pro-inflammatory parameters such as IL-1β and NF-ĸB, as well as low levels of anti-inflammatory parameters such as IL-6 and BCl-2. These alterations were improved by propolis and chitosan extracts, which was further confirmed in experimental animals. This study demonstrated that propolis and chitosan nanoparticle extracts have the potential to protect against hepatotoxicity induced by ibuprofen, due to their ability to regulate anti-inflammatory and anti-oxidative defense activities. [ABSTRACT FROM AUTHOR]

Aims: The use of non-steroid anti-inflammatory drugs (NSAIDs) is conventional in management of postoperative pain in cancer patients, and further investigations have reported that some of these drugs correlated with the outcome in cancers. However, the prognostic value of the use of NSAIDs during surgery in non-small cell lung cancer (NSCLC) patients has been less addressed. Methods: NSCLC patients staged I–III are retrospectively enrolled, and the data of the use of NSAIDs during surgery are collected. Patients are divided into two subgroups according to the use intensity (UI) (low or high) of the NSAIDs, which was calculated by the accumulate dosage of all the NSAIDs divided by the length of hospitalization. The differences of the clinical features among these groups were checked. And the disease-free survival (DFS) and overall survival (OS) differences in these groups were compared by Kaplan–Meier analysis; risk factors for survival were validated by using a Cox proportional hazards model. Results: The UI was significant in predicting the DFS (AUC = 0.65, 95% CI: 0.57–0.73, P = 0.001) and OS (AUC = 0.70, 95% CI: 0.59–0.81, P = 0.001). Clinical features including type of resection (P = 0.001), N stages (P < 0.001), and TNM stages (P = 0.004) were significantly different in UI low (< 74.55 mg/day) or high (≥ 74.55 mg/day) subgroups. Patients in UI-high subgroups displayed significant superior DFS (log rank = 11.46, P = 0.001) and OS (log rank = 7.63, P = 0.006) than the UI-low ones. At last, the UI was found to be an independent risk factor for DFS (HR: 0.52, 95% CI: 0.28–0.95, P = 0.034). Conclusions: The use of NSAIDs during radical resection in NSCLC patients correlated with the outcome and patients with a relative high UI has better outcome. [ABSTRACT FROM AUTHOR]

We have designed a new compound from the non-steroidal anti-inflammatory drug (NSAID) ketoprofen (Ket) and 2-amino-2-(hydroxymethyl)-1,3-propanediol (Tris) precursors, with the aim to reduce the gastrointestinal (GI) side effects of NSAID therapies. We investigated mucosal reactions in a standard rat model of colitis together with methane generation as a possible indicator of pro-inflammatory activation under this condition (approval number: V./148/2013). Whole-body methane production (photoacoustic spectroscopy) and serosal microcirculation (intravital videomicroscopy) were measured, and mucosal damage was assessed (conventional histology; in vivo laser-scanning endomicroscopy). Inflammatory markers were measured from tissue and blood samples. Colitis induced an inflammatory response, morphological colonic damage and increased methane output. Ket treatment lowered inflammatory activation and colonic mucosal injury, but macroscopic gastric bleeding and increased methane output were present. Ket-Tris reduced inflammatory activation, methane emission and colonic mucosal damage, without inducing gastric injury. Conjugation with Tris reduces the GI side effects of Ket and still decreases the inflammatory response in experimental colitis. Methane output correlates with the mucosal inflammatory response and non-invasively demonstrates the effects of anti-inflammatory treatments. [ABSTRACT FROM AUTHOR]

Simple Summary: Tumor evasion of immune surveillance is a hallmark of cancer posing challenges to effective cancer treatment. Herein we review the contributions of prostaglandins in shaping tumor microenvironments to modulate immune responses and cancer progression. Opportunities to target prostaglandins and their signaling receptors in improving cancer therapy, particularly immunotherapy, are explored. Prostaglandins, the bioactive lipids generated from the metabolism of arachidonic acid through cyclooxygenases, have potent effects on many constituents of tumor microenvironments. In this review, we will describe the formation and activities of prostaglandins in the context of the tumor microenvironment. We will discuss the regulation of cancer-associated fibroblasts and immune constituents by prostaglandins and their roles in immune escapes during tumor progression. The review concludes with future perspectives on improving the efficacy of immunotherapy through repurposing non-steroid anti-inflammatory drugs and other prostaglandin modulators. [ABSTRACT FROM AUTHOR]

Post-marketing hepatotoxicity findings are more common or occur much later. NSAIDs (non-steroidal anti-inflammatory drugs) like ibuprofen are consumed in large quantities around the world. NSAIDs have a low incidence of hepatotoxicity but their wide use makes them a major contributor to drug-induced liver injury. Hepatitis is linked to systemic oxidative stress which results in cellular necrosis and fibrosis, as well as tissue lipoprotein peroxidation and glutathione depletion. Given the lack of safe and effective anti-hepatitis drugs in medicine today, natural substances appear to be a promising and safe alternative. Propolis and chitosan are considered natural substances that have a protective effect on the hepatocytes. The purpose of this study was to validate the protective effect of propolis/chitosan nanoparticle extracts on ibuprofen-induced hepatotoxicity. Thirty (30) albino rats were used for the experiment. Animals were exposed to ibuprofen (400 mg/kg body weight/day) for 4 weeks (7 days/week) followed by treatment with propolis (200 mg/kg body weight/day) and chitosan extract (200 mg/kg body weight/day) separately and also in combination for consecutive 4 weeks. This study revealed a significant increase in serum transaminases, alkaline phosphatase, albumin, and total bilirubin in serum, as well as an increase in lipid peroxidation (MDA) and nitric oxide (NO). Furthermore, GSH, GST, and SOD decreased significantly in the group that was exposed to ibuprofen. Furthermore, there was a significant increase in pro-inflammatory parameters such as IL-1β and NF-ĸB, as well as low levels of anti-inflammatory parameters such as IL-6 and BCl-2. These alterations were improved by propolis and chitosan extracts, which was further confirmed in experimental animals. This study demonstrated that propolis and chitosan nanoparticle extracts have the potential to protect against hepatotoxicity induced by ibuprofen, due to their ability to regulate anti-inflammatory and anti-oxidative defense activities.

The new coronavirus infection (COVID-19) is associated with a wide spectrum of various clinical manifestations including involvement of the musculoskeletal system which can persist for a long time after the infection. Supposedly, pathogenesis of musculoskeletal manifestations of COVID-19 is primarily caused by systemic inflammation accompanied by cytokine hyperexpression (interferon γ, interleukins 1β, 6, 8, 17, tumor necrosis factor α), as well as hypoxia leading to overproduction of inflammatory cytokines, activation of bone reabsorption by osteoclasts and subsequent decrease of mineral bone density and osteonecrosis in some cases. Additionally, some drugs prescribed to patients with COVID-19 (some antiviral drugs and glucocorticoids) should also be taken into account as they can lead to development of musculoskeletal pathology. In the acute period of COVID-19, myalgias are common, but in rare cases myositis with proximal muscular weakness and increased levels of creatine phosphokinase, lactate dehydrogenase can occur. Arthralgias in the acute period of COVID-19 are rarer than myalgias. In the studies of clinical manifestation of COVID-19, frequency of arthralgias and myalgias in the acute period is between 15.5 and 50 %. After COVID-19, frequency of arthralgias and myalgias gradually decreases, however there are cases of long-term joint and muscle pains, as well as post-viral arthritis, development of arthritis in the context of various autoimmune disorders. Myalgias and arthralgias during COVID-19 usually regress spontaneously and in most patients do not require prescription of antipain medications, but in some cases pain management is necessary. Use of non-steroid anti-inflammatory drugs and vitamin D during COVID-19 is a safe and effective method of pain management, including myalgia and arthralgia. Rehabilitation programs play an important role in improvement of functional state and patient recovery after moderate and severe COVID-19.

Background: Osteoarthritis (OA) is more prevalent in women with age. Comorbidities are prevalent in OA patients. In this study, we conducted a follow-up study to evaluate whether women with OA are at an increased risk of ischemic stroke using insurance claims data of Taiwan. Methods: We identified 13,520 women with OA aged 20–99 newly diagnosed in 2000–2006 and 27,033 women without OA for comparison, frequency matched by age and diagnosis date. Women with baseline history of hypertension and other disorders associated with stroke were excluded for this study. Incident ischemic stroke was assessed by the end of 2013. A nested case-control analysis was used to identify factors associated with the stroke in the OA cohort. Results: The incidence rate of ischemic stroke in the OA cohort was 1.5-fold greater than that in comparisons (1.93 versus 1.26 per 1,000 person-years), with an adjusted hazard ratio of 1.34 (95% confidence interval [CI], 1.09–1.66). The nested case-control analysis showed that stroke cases were twice as likely to develop hypertension during the follow-up period than controls without stroke. The ischemic stroke risk was significantly associated with hypertension (odds ratio [OR] 1.84; 95% CI, 1.37–2.46) and atrial fibrillation (OR 2.25; 95% CI, 1.24–4.09). Ischemic stroke was not associated with the use of non-steroidal anti-inflammatory drugs or aspirin. Conclusion: Women with OA are at an elevated risk of ischemic stroke. A close monitoring of hypertension, atrial fibrillation, and other stroke related comorbidities is required for stroke prevention for OA patients.

Introduction: Primary dysmenorrhea is a common disorder in women, with a significant impact on quality of life. Aim: The objective of this academic study was to investigate the severity of dysmenorrhea in female students of the Faculty of Medicine in Novi Sad, to estimate the self-medication prevalence of primary dysmenorrhea, to identify the most commonly used conventional, herbal, homeopathic remedies and manner of their usage, as well as non-pharmacological measures in the treatment of primary dysmenorrhea. Material and Methods: This study was performed on a random sample of 100 respondents from different departments of the Faculty of Medicine in Novi Sad, from December 1st to December 15th, 2016. The data were obtained by using a standardized questionnaire. Results: The sample included 59 female medical students and 41 female students of the other study groups. Most of the respondents had medium expressed symptoms due to dysmenorrhea (48.0%). The most common symptoms were cramps and pain in the lower abdomen, anxiety, and appetite changes. 11% of respondents were absent from classes at the university minimum one day of each menstrual cycle, because of dysmenorrhea. 66% of respondents used drugs due to symptoms of dysmenorrhea. The most commonly used group of drugs were non-steroid anti-inflammatory drugs (75.76%), primarily ibuprofen (53.03%), and diclofenac (10.61%). Self-medication prevalence was 48.48%. Conclusion: According to the results of this study, dysmenorrhea symptoms significantly impact the quality of life.

PICO question Does treatment with a non-steroidal anti-inflammatory drug (NSAID) with supplementation of marine-derived omega-3 fatty acids (n-3FAs) compared to the NSAID alone, result in an increased ability to exert force by the osteoarthritic limb(s) of dogs or alleviate other measures of osteoarthritis? Clinical bottom line Category of research question Treatment The number and type of study designs reviewed Two prospective, block-randomised, clinical trials Strength of evidence None Outcomes reported Kwananocha et al. (2016) investigated administration of carprofen supplemented with marine-derived n-3 FAs, to carprofen alone, administered over 4 weeks. Vijarnsorn et al. (2019) investigated administration of firocoxib supplemented with n-3FA, to firocoxib alone, for 4 weeks. There were no statistical differences between treatment groups at week 2 and week 4 post-treatment for either study. Both studies also reported orthopaedic assessment score (OAS) based on scoring the extent of patient lameness and pain in the affected joint. There were no statistical changes in OASs between treatment groups at week 2 or week 4 post-treatment for either study Conclusion There is no evidence that marine-derived n-3 FAs provide additional benefit when used as adjunctive agents with NSAIDs for the treatment of canine osteoarthritis How to apply this evidence in practice The application of evidence into practice should take into account multiple factors, not limited to: individual clinical expertise, patient’s circumstances and owners’ values, country, location or clinic where you work, the individual case in front of you, the availability of therapies and resources. Knowledge Summaries are a resource to help reinforce or inform decision making. They do not override the responsibility or judgement of the practitioner to do what is best for the animal in their care.

Neurodegenerative diseases (NDDs) are characterized by progressive deterioration of the structure and function of cells and their networks in the nervous system. There are currently no drugs or other treatments that can stop the progression of NDDs. NDDs have many similarities and common pathways, e.g., formation of misfolded amyloid proteins, intra- and extracellular amyloid deposits, and chronic inflammation. Initially, the inflammation process has a cytoprotective function; however, an elevated and prolonged immune response has damaging effects and causes cell death. Neuroinflammation has been a target of drug development for treating and curing NDDs. Treatment of different NDDs with non-steroid anti-inflammatory drugs (NSAIDs) has failed or has given inconsistent results. The use of NSAIDs in diagnosed Alzheimer's disease is currently not recommended. Sigma-1 receptor (Sig-1R) is a novel target for NDD drug development. Sig-1R plays a key role in cellular stress signaling, and it regulates endoplasmic reticulum stress and unfolded protein response. Activation of Sig-1R provides neuroprotection in cell cultures and animal studies. Clinical trials demonstrated that several Sig-1R agonists (pridopidine, ANAVEX3-71, fluvoxamine, dextrometorphan) and their combinations have a neuroprotective effect and slow down the progression of distinct NDDs. [ABSTRACT FROM AUTHOR]

Pharmaceuticals (mostly antibiotics and non-steroid anti-inflammatory drugs) are hazardous micropollutants (HMP). Incomplete degradation of the HMP leads to their persistence in the environment and a plethora of deleterious effects. Conventional wastewater treatment cannot remove HMP completely, and a promising alternative is comprised by biotechnologies based on microalgae. Bioprospecting of HMP-tolerant strains is a bottleneck for such technologies. Carrying out a full-featured testing procedure for each newly isolated culture is impractical. Rapid screening can save a lot of time, money, and labor by selecting the efficient strains for further characterization or finding the concentration range where the strain exhibits the highest tolerance. The suitability of two well-plate screening techniques, one based on wet spectrophotometric assay of photosynthetic pigments together with an alternative method based on PAM imaging of chlorophyll variable fluorescence, was tested. Five pharmaceuticals (azithromycin, cephtriaxone, amoxiclav, diclofenac, ibuprofen) and five original strains (Micractinium simplicissimum NAMSU F2, Desmodesmus sp. IPPAS S-2014, Chlorella vulgaris IPPAS C-2015, Synechococcus sp. IPPAS B-2053, Lobosphaera sp. IPPAS C-2047) have been involved in the screening. Both approaches proved to be suitable for rapid screening of the tolerance of the studied microalgal strains to the toxicity of the studied pharmaceuticals. The imaging PAM–based technique better resolved the rapid changes in the microalgal cell condition. The wet pigment assay better highlighted the effects developing on the time scale of days. Interestingly, Chlorella and Desmodesmus incubated with a low concentration of the pharmaceuticals displayed some stimulatory effects. Precautions necessary for using these methods including the measurement setup, the choice of light intensity, and other possible caveats are discussed. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Northwest A & F University - Natural Science Edition is the property of Editorial Department of Journal of Northwest A&F University (Natural Science Edition) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

OBJECTIVE: This study aimed to investigate the knowledge, usage and attitude of physiotherapists towards non-steroidal anti-inflammatory drugs (NSAIDs) in Karachi, Pakistan. METHODS: A cross-sectional study was conducted among clinical physiotherapists working in Karachi who were enrolled through convenient sampling. A questionnaire was distributed to the participants, which consisted of questions regarding physiotherapists' current knowledge, current practice and their attitude towards NSAIDs prescription. RESULTS: Responses of 310 physiotherapists out of the 350 questionnaires distributed were received (response rate = 88%). Results show that most physiotherapists (60.3%) recommended NSAIDs to their patients despite having a variable understanding of the contraindications, adverse reactions and drug interactions of NSAIDs. Most physiotherapists demonstrated poor knowledge of the legislation on NSAIDs prescription as most of them believed that they were allowed to advise (71.9%), prescribe (66.1%) and recommend (72.2%) NSAIDs to their patients. CONCLUSION: This study implicates that physiotherapists should be trained through proper educational sessions such as certification courses on pharmacotherapy (specifically pain medications) in order to become certified to prescribe NSAIDs and other analgesics. [ABSTRACT FROM AUTHOR]

Conservative treatments for early osteoarthritis (OA) of the knee included the use of non-steroid anti-inflammatory drugs (NSAIDs) and intra-articular hyaluronic acid (HA) injection. Recently, several animal studies reported that extracorporeal shockwave therapy (ESWT) demonstrated chondroprotective effects on knee OA. The present study compared the efficacy of oral NSAIDs, HA injection, and noninvasive ESWT for early OA of the knee. Forty-five patients with early knee OA were randomized into three groups. NSAIDs group received celecoxib 200 mg daily for 3 weeks. HA group received intra-articular injection of HA once a week for 3 weeks. ESWT group received ESWT for 3 sessions at bi-weekly interval. All patients were followed up for one year. Evaluations included the visual analogue scale (VAS) score, serum enzyme-linked immunosorbent assay (ELISA), plain radiography, dual-energy X-ray absorptiometry (DEXA), and magnetic resonance imaging (MRI). In addition, the functional scores were performed including, WOMAC (Western Ontario and McMaster Universities Arthritis Index) score, KOOS (knee injury and osteoarthritis outcome) score, and IKDC (International Knee Documentation Committee) score. All three groups showed significant improvement in VAS and functional scores as well as in the collected one-year follow-up data after treatments. ESWT group had better pain relief than NSAIDs and HA groups. ESWT group had better therapeutic effects in the functional scores than NSAIDs and HA groups. The bone mineral density (BMD) of proximal tibia is significantly increased after ESWT than others. In the serum ELISA, ESWT inhibited the expression of COMP in knee OA patients as compared with NSAIDs and HA groups. The parameters of MRI showed no significant differences between three groups after treatments. ESWT and intra-articular HA injection showed comparable results than NSAIDs. ESWT was superior in pain relief than HA and NSAIDs. The results demonstrated that ESWT was an effective and alternative therapy than HA and NSAIDs for early osteoarthritis of the knees.

Although NSAIDs possess notable therapeutic and pharmaceutical qualities, it's essential to acknowledge that excessive doses can result in toxicity within the human body. Moreover, the importance lies in identifying and measuring their trace amounts. Due to their existence within intricate matrices, the creation of novel electrospun nanofibers as sorbents for electrically-assisted solidphase microextraction (EA-SPME) becomes vital. This innovation caters to the requirement for the effective pre-treatment of NSAID samples, providing a strategic approach to managing the complexities associated with trace quantities found in various matrices. First, polyvinylalcohol/casein/tannic acid/polyaniline/titanium dioxide nanoparticles (PVA/CAS/TA/PANI/TiO 2 NPs) electrospun nanofibers were prepared for EA-SPME on pewter rode and then, trace amounts of six NSAIDs (Acetaminophen, Caffeine, Naproxen, Celecoxib, Ibuprofen and mefenamic acid) were adsorbed chemically on these nanofibers. In the next step, the desorption of six NSAIDs was electrochemically done from prepared electrospun nanofibers on a pewter rod which was as working electrode at three electrodes system. Finally, these drugs were quantified from different human plasma samples with HPLC-UV. The synthesis of electrospun nanofibers was confirmed through a series of analytical techniques including field emission-scanning electron microscopy (FE-SEM), energy-dispersive X-ray spectroscopy with elemental mapping analysis (EDX-Mapping), X-ray diffraction (XRD), and Fourier transform-infrared (FT-IR). The optimal percentage of additive compounds to PVA/CAS for electrospinning, as well as the factors influencing adsorption and desorption processes, were determined through both of Design Expert software and MATLAB programming language. Under optimum conditions, the wide linear range was 27–8000 ng mL−1 with R2 ≥ 0.9897, low detection limits were ranged from 8 to 27.3 ng mL−1 based on S/N = 3 and significant enrichment factors were acquired. The intra-day and inter-day RSDs% were obtained within the 4.51% - 5.68% and 4.28%–5.45%, respectively. Finally, The effectiveness of the EA-SPME-HPLC-UV method was assessed for determining NSAIDs in plasma samples, demonstrating good recoveries ranging from 90.2% to 105.2%. [Display omitted] • Six NSAIDs with various pKa values were pretreated simultaneously by EA-SPME. • The electrospun nanofibers were used as a sorbent in EA-SPME method. • The chemical adsorption and electrochemical desorption process were performed. • The amounts of six NSAIDs were determined in human plasma samples. • The optimization step was accomplished with both of the design-expert and Matlab. [ABSTRACT FROM AUTHOR]

The inflammatory chronic abacterial prostatis/chronic pelvic pain syndrome accounts for 60-65% of all cases of chronic prostatitis. The etiology of the chronic abacterial prostatis/chronic pelvic pain syndrome remains unstudied to the full. The major objective of clinical study is to rule out possible organic urologic diseases. The inflammatory chronic abacterial prostatis/ chronic pelvic pain syndrome is characterized by the inflammatory reaction in the prostate secretion in absence of bacteria in the diagnostics titer in the urine and the prostate secretion. Cyclogenase-2 inhibitors reduce the content of prostaglandins in the sperm and urine, pain sensation and edema of the prostate gland. Use of nimesulide in patients of this category allows removing pelvic pains, increasing blood flow in the prostate gland at low percentage of adverse events.

The article discusses approaches to therapy of acute respiratory infection (ARI) and flu. Some peculiarities of application of various non-steroid anti-inflammatory drugs in children are discussed. Data on effectiveness of paracetamol use in children with ARI and flu symptoms are provided.

The aim of the study was to evaluate the incidence of chronic kidney disease (CKD) in patients with chronic back pain and nonsteroidal anti-inflammatory drugs (NSAIDs) intake not less than a year, and to study the interrelation between CKD, peculiarities of pain and its treatment. Material and Methods. 91 patients with axial spondyloarthri-tis — ax-SpA(ankylosing spondylitis and non-radiographic ax-SpA) and 35 patients with degenerative diseases of the spine (DDS) with NSADs intake not less than 1 year were involved in the study. The control group included healthy volunteers who did not took NSAIDs during the last year (n=51). By age, gender, factors of cardiovascular risk, GFR in patients with ax-SpA, DDS and controls were comparable. The activity of pain was evaluated according to the accepted recommendations. The index of NSAID intake as calculated for the preceding year. Results. GFR in patients with ax-SpAwas 87,0 [77,25; 102,0] ml/min/1,73 m2, 11 (18%) patients showed a reduction in GFR of less than 60 ml/ min/1,73m2. In patients with DDS GFR was 87,5 [65,5; 97,0] ml/min / 1,73 m 2 (p=0,27), decreased GFR of less than 60 ml/min / 1,73 m2 was detected in 3 (15%) patients. The ratio of albumin / creatinine urine in patients with ax-SpA was 35,8 [25,46; 43,4] mg/g, in patients DDS —207,1 [91,66; 244,59] mg/g (p

Lesion of gastrointestinal mucous coat is the main factor limited acetylsalicylic acid (ASA) use in patients with atherothrombosis. Up to date the mostly comprehensible way to decrease gastrointestinal complications is taking ASA in the lowest effective dose, which is not higher than 75-81 mg daily. It is necessary if possible to avoid ASK usage in combination with other antiaggregants, anticoagulants, non-steroid and steroid anti-inflammatory drugs. Routine antiulcer therapy is not indicated for patients treated with ASA because there is a lack of clinical research data about efficacy of this approach. In high risk of dangerous gastrointestinal complications H. pylori eradication is recommended in combination with long term preventive therapy with gastric secretion inhibitors. Proton pump inhibitors are more preferred.

Periorbital emphysema is rare and associated with facial trauma. Its main distinguishing feature is crepitation on palpation of the edema. It resolves spontaneously in a few days, but there are cases of orbital compartment syndrome that can lead to loss of vision. Here we present the case of a 55-year-old male who came to the emergency department for bilateral periorbital edema associated with non-steroidal anti-inflammatory drug (NSAID) usage, for pain following a fall from a ladder. He was treated with antihistamines and corticosteroids, for presumed allergic reaction, but without response, and subsequently developed acute onset dyspnea. Chest x-ray revealed a left pneumothorax in the context of chest trauma. Chest CT scan after drain placement shows extensive subcutaneous emphysema. In the differential diagnosis of periorbital edema, in addition to allergic, inflammatory, and systemic causes, the traumatic ones should not be excluded., Competing Interests: The authors have declared that no competing interests exist., (Copyright © 2024, Manata et al.)

Background: A low dose of capsaicin and its natural homologs and analogs (capsaicinoids) have shown to prevent development of gastric mucosal damage of alcohol and non-steroid anti-inflammatory drugs. Based on this experimental observation, a drug development program has been initiated to develop per os applicable capsaicin containing drugs to eliminate gastrointestinal damage caused by non-steroid anti-inflammatory drugs. Methods: As a part of this program, a sensitive and selective reverse-phase high-performance liquid chromatography-based method with fluorescence detection has been developed for quantification of capsaicin and dihydrocapsaicin in experimental dog’s plasma. Results: The method was evaluated for a number of validation characteristics (selectivity, repeatability, and intermediate precision, LOD, LOQ, and calibration range). The limit of detection (LOD) was 2 ng/mL and the limit of quantification (LOQ) was 10 ng/mL for both capsaicin and dihydrocapsaicin. The method was used for analysis of capsaicin and dihydrocapsaicin in the plasma samples obtained after per os administration of low doses (0.1, 0.3, and 0.9 mg/kg bw) of Capsaicin Natural (USP 29) to the experimental animals. Conclusions: The obtained results indicated that the administered capsaicinoids did not reach the general circulation.

Non-steroid anti-inflammatory drugs (NSAID) were and still remain the main means for arresting acute and controlling chronic pains in therapeutic practice. However, serious complications that may be caused by these drugs essentially limit their application. Therapists need distinct and reasonable guidelines on NSAID prescription depending on presence of a comorbid pathology and risk factors associated with the gastrointestinal tract and cardiovascular system. World renowned experts have been actively studying this problem. The main aspects of NSAID efficiency and safety are discussed in this study; the risk factors are ranked according to their significance; and an algorithm of reasonable drug prescription, including prevention of potential complications, is proposed.

Background: Alveolar bone loss is the most striking feature of periodontal disease. The aim of this study was to investigate the effect of a cyclooxygenase (COX) pathway inhibitor and nitric oxide synthase (NOS) inhibitor in the reduction of alveolar bone loss in an experimental periodontal disease (EPD) model. Materials and Methods: The study was conducted on 60 Wistar rats divided into three groups of 20 rats each and then subjected to a ligature placement around the left maxillary second molars. Group 1 rats were treated with COX inhibitor (diclofenac sodium 10 mg/kg/d), group 2 with NOS inhibitor (aminoguanidine hydrochloride 10 mg/kg/d) and group 3 served as controls, receiving only saline, intraperitoneally 1h before EPD induction and daily until the sacrifice on the 11 th day. Leukogram was performed before ligation, at 6 h and at the first, seventh and 11 th days after EPD induction. After sacrifice, all the excised maxillae were subjected to morphometric and histometric analysis to measure the alveolar bone loss. Histopathological analysis was carried out to estimate cell influx, alveolar bone and cementum integrity. Results: Induction of experimental periodontitis in the rat model produced pronounced leucocytosis, which was significantly reduced by the administration of diclofenac sodium and aminoguanidine on the 11 th day. In morphometric and histometric examinations, both the test drugs significantly (P < 0.05) inhibited the alveolar bone loss as compared with the control group. Conclusion: Both COX inhibitor and NOS inhibitor are equally effective in inhibiting the inflammatory bone resorption in an experimental periodontitis model.

Postoperative pain is common complication after daily dental care. Non-steroidal anti-inflammatory drugs are among most widely prescribed analgesics for management of postoperative pain. The analgesic effect of a non-steroidal antiinflammatory drug (NSAID) is related to its ability to inhibit prostaglandin synthesis. Ibuprofen (2-proprionic acid derivate) was discovered in the 1960s as a representative of NSAIDs. It is a peripherally acting analgesic with a potent anti-inflammatory action. An extensive retrospective analysis of randomized clinical trials conducted over the last 40 years demonstrated that ibuprofen is effective in moderate to severe postoperative pain for different indications in dentistry. In comparison to other NSAIDs, ibuprofen is characterized by its efficiency, safety and good tolerance. The aim of this article was to present the most important pharmacological and therapeutic characteristics and side effects of ibuprofen used for postoperative pain treatment in dentistry.

Background: Ovarian cancer is a leading cause of female gynecological cancer-related death, and there are no effective screening procedures or early diagnostic approaches.Aims: To examine risk factors and risk-reducing strategies for both sporadic and familial tumors.Materials and Methods: Literature review and consensus of expert opinion.Results and Conclusions: In women with a genetic predisposition to ovarian cancer, salpingo-oophorectomy reduces the risk of ovarian malignancy, and to a lesser degree of breast cancer. Opportunistic bilateral salpingo-oophorectomy and bilateral salpingectomy may also prevent epithelial ovarian cancer. In premenopausal women, bilateral salpingectomy should be preferred to tubal ligation, and be performed when hysterectomy is carried out for benign uterine disease. Hysterectomy and the use of combined oral contraceptives and non-steroid anti-inflammatory drugs are also recognized to reduce the risk of ovarian cancer, as do the prevention of obesity and smoking cessation. [ABSTRACT FROM AUTHOR]

• NSAIDs inhibiting COX-1 mainly holds many gastric side-effects. • To minimize their side-effects, ten NSAIDs were converted to amide derivatives. • The new derivatives showed good anti-inflammatory and analgesic activity. • Best drug candidates were subjected to comprehensive toxicological investigation. • Selectivity of some COX-1 inhibitors shifted to COX-2. Today, usage of NSAIDs (nonsteroidal anti-inflammatory drugs) is very common. However, it has been proven by many studies that NSAIDs with free carboxylic acid group damage the GI (gastrointestinal) system. Our aim was to mask the acidic groups of NSAIDs to prevent or reduce their side effects while preserving their pharmacological effects. In this study, new amide derivatives of known NSAIDs, compounds 11 – 20 , were synthesized to investigate their analgesic and anti-inflammatory effects using in vivo models. While compound 11 showed the most remarkable anti-inflammatory activity by 60.9% inhibition value at 200 mg/kg dose, compounds 11, 12, 15 and 18 had almost the same analgesic activity to that of acetylsalicylic acid (100 mg/kg) and flurbiprofen (100 mg/kg). In addition, all test compounds used at high dose (200 mg/kg, p.o) did not show any acute toxicity. COX-1 and COX-2 inhibition properties of all compounds were measured by biochemical methods and the interaction of the most active compounds with COX enzymes is elucidated by computer-assisted virtual screening methods. It was determined by in vitro enzyme inhibition studies that compound 11 and 13 , synthesized from selective COX-1 inhibitors dexketoprofen and flurbiprofen, are selective COX-2 inhibitors. Moreover, compounds 11 – 13 were found to be non-mutagenic according to the mutagenicity assay using Salmonella TA98 and TA100 strains with and without metabolic activation. Finally, the prediction of ADMET profile and drug-likeness properties of compounds 11 – 20 were examined and the obtained results were evaluated. [Display omitted] [ABSTRACT FROM AUTHOR]

Nonsteroid anti-inflammatory drugs (nSAD) are among most often used medicines. Development of complications in patients taking NSAD is still an important problem. Negative NSAD influence on the upper part of the gastrointestinal tract is well-known as it is responsible for frequent complications. NSAD impact on a distal part of the gastrointestinal tract is studied much less, especially small bowel lesions. The article presents literature data about pathogenesis, diagnosis, treatment and prevention of NSAD-induced enteropathy. The article is addressed to a wide range of readers to attract attention to NSAD enteropathy problem.

Iontophoresis is a non-invasive method of systemic and local drug delivery using an electric field. Iontophoresis enables diffusion of the selected drug via skin, mucosa, enamel, dentin, and other tissues. The amount of delivered therapeutic molecules is about 10⁻2000 times greater than conventional forms of delivery. Among other fields, this method is used in dentistry, ophthalmology, otorhinolaryngology, and dermatology. According to related literature, the most important drugs studied or administered by iontophoresis are: Local anesthetics, opioids, steroids, non-steroidal anti-inflammatory drugs, antibacterial drugs, antifungal drugs, antiviral drugs, anticancer drugs, fluorides, and vitamins. The present review covers current available data regarding the selected medicines used in iontophoresis. Furthermore, indications and conditions of iontophoresis application are reviewed.

We studied the use ofnon-steroid anti-inflammatorydrugs (NSAID) at the in-patient department ofcentral district hospitalwith the application ofDDD-techniques before and after the formular system adoption. After introduction of drug formular and treatment standards the use of NSAID was reduced; the physicians began to use modern drugs. Non-indicated and contraindicated NSAID were prescribed more seldom. Itwas determined that reduction of antihypertensive drugs efficiency in hypertensive patients was the main side effect of NSAID use. NSAID gastropathy occurred more seldom, and mainly in the patients receiving several NSAIDs simultaneously.

Non-steroid anti-inflammatory drugs (NSAIDs) have been frequently detected in aquatic ecosystem and posed a huge risk to non-target organisms. The aim of this study was to evaluate the toxic effects of three typical NSAIDs, diclofenac (DFC), acetaminophen (APAP) and ibuprofen (IBP), toward the water flea Daphnia magna. All three NSAIDs showed remarkable time-dependent and concentration-dependent effects on D. magna, with DFC the highest and APAP the lowest toxic. Survival, growth and reproduction data of D. magna from all bioassays were used to determine the LC10 and LC50 (10 % lethal and median lethal concentrations) values of NSAIDs, as well as the EC10 and EC50 (10 % effect and median effect concentrations) values. Concentrations for the lethal and sublethal toxicity endpoints were mainly in the low ppm-range, of which reproduction was the most sensitive one, indicating that non-target organisms might be adversely affected by relevant ambient low-level concentrations of NSAIDs after long-time exposures. [ABSTRACT FROM AUTHOR]

Idiopathic orbital myositis is seen very rare in children. In this article, the diagnose criteria of a pediatric case with idiopathic orbital myositis and oral non-steroid anti-inflammatory treatment’s response have been evaluated. A thirteen-year-old girl was admitted to our clinic with the complaint of diplopia and pain. On ophthalmologic examination, right eye had up-gaze restriction. Right superior rectus muscle’s extension and contrast involvement have been observed in orbital magnetic resonance imaging (MRI). Based on the MRI findings and due to absence of systemic disease, our case was diagnosed as idiopathic orbital myositis. Oral non-steroid antiinflammatory treatment was applied to the patient. After a month from starting the treatment, up-gaze restriction and diplopia have not been observed and no relapse was seen in eighteen-month follow-up visits. Idiopathic orbital myositis should be considered among differential diagnoses in children who have complaint of orbital pain and diplopia. Non-steroid anti-inflammatory drugs can be effective in the treatment of idiopathic orbital myositis. (Turk J Ophthalmol 2013; 43: 362-4)

Aim. To estimate frequency of ulcers and erosions associated with administration of nonsteroid antiinflammatory drugs (NSAID) in patients with rheumatic diseases. Material and methods. The analysis of the clinic endoscopic data base allowed division of the patients into three groups: group 1 -207 patients examined with esophagogastroduodenoscopy (EGDS) which detected ulcers or multiple erosions of the stomach and/or duodenum in the course of treatment with NSAID; group 2 - 157patients with a few erosions of the stomach or duodenum; group 3 - 404 controls who had neither erosions nor ulcers in the course of NSAID treatment. Results. Frequency of detection of ulcers and multiple erosions for groups 1, 2 and 3 was 40.1, 12.1 and 7.4%, respectively. Recurrences did not correlate with age, sex, dose of glucoorticosteroids, NSAID dose, cytostatics, preventive use of antiulcer drugs. Few gastric erosions were detected more frequently in patients of group 2 than group 3 (22.9 and 9.2%, respectively, p < 0.05). Conclusion. NSAID-induced ulcers in patients with rheumatic diseases are recurrent. Preventive intake of H2-blockers did not lower the risk of ulcer recurrence. Erosions tend to recurrence but their presence do not raise the risk of ulcer development.

In the current study, decomposition of diclofenac, diflunisal, ibuprofen, mefenamic acid and piroxicam was tested using nine identified strains of endophytic and epiphytic fungi (from Ascomycota) adapted to natural products resembling the pharmaceuticals. The strains were isolated from a medicinal plant, Plantago lanceolata leaves. Metabolites were tentatively identified by liquid chromatography – tandem mass spectrometry (LC-MS 3 ). Eighteen of the 45 combinations resulted in significant decrease of the concentration of the NSAIDs in model solutions. The most active strains were Aspergillus nidulans and Bipolaris tetramera , while Epicoccum nigrum and Aspergillus niger showed somewhat less potency. Piroxicam and diclofenac were most resistant to biotransformation, while ibuprofen and mefenamic acid were efficiently metabolized by most strains. Ten metabolites could be tentatively identified, including hydroxy-metabolites of all tested NSAIDs, and a dihydroxy-metabolite of piroxicam. This biotransformation is likely to modify the toxicity and bioaccumulation potential of these pharmaceuticals. The results highlight the applicability of polyphenol-rich dried medicinal plant materials as an excellent source of fungi with high biotransforming potential. The results also suggest more in-depth testing of these fungi for biodegradation processes. [ABSTRACT FROM AUTHOR]

The treatment of mild to moderate intensity oral-dental pain and of nociceptive and inflammatory origin generally requires the prescription of non-opioid analgesics. The actions of these medications and their main indications are exposed in the clinical and odontological practice, in order to contribute to increase the knowledge level on this topic, the quality of the prescription and the comprehensive care to the patient by the Odontology professional in the health primary level. [ABSTRACT FROM AUTHOR]

While the number of clinical experiments investigating the effects of non-steroid antiinflammatory drugs (NSAIDs) on the cardiovascular (CV) events has significantly increased over the last two decades, basic research related to the mechanism by which NSAIDs cause CV dysfunction is limited. High variability in the clinical trials conducted (different populations, dosages, exposure and types of NSAIDs) has led to results which are difficult to interpret and compare between studies. Are there some NSAIDs safer than other from the standpoint of CV risk? We have try to answer at some aspects of this question. [ABSTRACT FROM AUTHOR]

Drug repurposing is a strategy used to develop new treatments based on approved or investigational drugs outside the scope of their original clinical indication. Since this approach benefits from the original toxicity data of the repurposed drugs, the drug-repurposing strategy is timesaving, and inexpensive. It has a higher success rate compared to traditional drug discovery. Several repurposing candidates have been identified in silico screening and in vitro methodologies. One of the best examples is non-steroidal anti-inflammatory drugs (NSAIDs). Tumor-promoting inflammation is one of the hallmarks of cancer, revealing a connection between inflammatory processes and tumor progression and development. This explains why using NSAIDs in the context of neoplasia has become a topic of interest. Indeed, identifying NSAIDs with antitumor activity has become a promising strategy for finding novel cancer treatment opportunities. Indeed, several commercial anti-inflammatory drugs, including aspirin, ibuprofen, diclofenac, celecoxib, tepoxalin and cyclovalone, naproxen, and indomethacin have presented antitumor activity, and some of them are already in clinical trials for cancer treatment. However, the benefits and complications of using NSAIDs for cancer treatment must be carefully evaluated, particularly for cancer patients with no further therapeutic options available. This review article provides insight into the drug repurposing strategy and describes some of the well-known NSAIDs that have been investigated as repurposed drugs with potential anticancer activity., (Copyright© Bentham Science Publishers; For any queries, please email at epub@benthamscience.net.)

Non-steroid anti-inflammatory drugs (NSAIDs) are the most frequently used drugs to treat inflammation and are used almost in the whole world. However, NSAID is one of the important causes of gastroenteropathy development. NSAIDs enteropathy is frequently undetected because most of them are asymptomatic and required sophisticated examinations to diagnose. Not only non-selective cyclo-oxygenases (COX) inhibitor that can cause NSAID gastropathy, but selective COX-2 inhibitors may also cause gastrointestinal complications. NSAID gastroenteropathy require further evaluation and it may differ between patients. Currently, there is no effective treatment available to treat gastrointestinal damage associated with NSAIDs administration. Identification of protective factors in gastrointestinal complication due to NSAIDs use is still a serious challenge. In this review, we will discuss the effect of NSAID administration towards gastrointestinal system, also the prevention and management strategies. [ABSTRACT FROM AUTHOR]

Objective: In this study, it was aimed to evaluate demographic and laboratory characteristics of the patients with upper gastrointestinal system (GIS) bleeding define the factors leading to bleeding. Methods: The study included 285 patients aged between 18 and 89 years who were followed and treated for upper GIS bleeding in our Internal Medicine Clinics. Patients' demographic and laboratory data, endoscopic findings, treatment methods, hospitalization length and need for blood transfusions were determined. Results: The mean age was 62.7±18.3 years with the male/female ratio of 2.2/1. The most common finding was melena (45.3%), and the second melena with hematemesis (33%). 76.84% of the patients had the history of drug use, mostly non-steroid anti-inflammatory drugs (NSAIDs) (45.26%) and aspirin (23.86%). The mean hospitalization length was 8.3±4.9 days. Blood transfusion was required in 74.04% with the mean 3,14±1,41 units. Bleeding recurrence was seen in 10.25%. Duodenal ulcer was observed as the most common cause of GIS bleeding (29.82%) and gastric ulcer was the second (21.75%). The treatment methods were medical in 73.34%, endoscopic sclerotherapy in 22.46%, hemoclips in 1.40% and band ligation in 0.70% of the patients. Upper GIS bleedings were mostly occurred in August (11.9%) and least occurred in December (3.5%). Conclusion: The majority of the patients have history of drug use, like NSAIDs and aspirin leading to bleeding. We suggest that the usage of these drugs should be controlled and used only with accurate indications especially in elderly patients. [ABSTRACT FROM AUTHOR]

Background/Aims: Neuronal activation induced cerebral blood flow increase was shown in animal experiments to require the presence of functioning cyclooxygenase. Our aim was to study whether widely used, non-steroid anti-inflammatory drugs (NSAIDs), given orally in usual therapeutic doses, inhibit neurovascular coupling in humans. Methods: By using a visual cortex stimulation paradigm, the flow velocity response was measured by transcranial Doppler sonography in both posterior cerebral arteries of fifteen young healthy adults. The investigation was repeated in the same subjects after 2-day administration of 3×25mg indomethacin (indomethacin phase) and 2×550mg naproxen (naproxen phase). Visual-evoked-potentials were also recorded during the control phase and after administration of NSAIDs. Results: Basal flow velocity significantly decreased while the pulsatility index increased after administration of either indomethacin or naproxen (p<0.01). Despite unchanged visual-evoked-potentials, the visually evoked flow velocity increase (26±7% in the control phase) significantly declined after administration of indomethacin (19±5%; p<0.01) or naproxen (20±5%; p<0.02). Conclusion: Oral administration of indomethacin or naproxen in their usual therapeutic doses significantly impaired the resting and the visually evoked blood flow regulations in healthy human subjects. Together with stable evoked potentials, our findings indicate disturbance of neurovascular coupling. [ABSTRACT FROM AUTHOR]

Background: Alveolar bone loss is the most striking feature of periodontal disease. The aim of this study was to investigate the effect of a cyclooxygenase (COX) pathway inhibitor and nitric oxide synthase (NOS) inhibitor in the reduction of alveolar bone loss in an experimental periodontal disease (EPD) model. Materials and Methods: The study was conducted on 60 Wistar rats divided into three groups of 20 rats each and then subjected to a ligature placement around the left maxillary second molars. Group 1 rats were treated with COX inhibitor (diclofenac sodium 10 mg/kg/d), group 2 with NOS inhibitor (aminoguanidine hydrochloride 10 mg/kg/d) and group 3 served as controls, receiving only saline, intraperitoneally 1h before EPD induction and daily until the sacrifice on the 11th day. Leukogram was performed before ligation, at 6 h and at the first, seventh and 11th days after EPD induction. After sacrifice, all the excised maxillae were subjected to morphometric and histometric analysis to measure the alveolar bone loss. Histopathological analysis was carried out to estimate cell influx, alveolar bone and cementum integrity. Results: Induction of experimental periodontitis in the rat model produced pronounced leucocytosis, which was significantly reduced by the administration of diclofenac sodium and aminoguanidine on the 11th day. In morphometric and histometric examinations, both the test drugs significantly (P < 0.05) inhibited the alveolar bone loss as compared with the control group. Conclusion: Both COX inhibitor and NOS inhibitor are equally effective in inhibiting the inflammatory bone resorption in an experimental periodontitis model. [ABSTRACT FROM AUTHOR]