Doxycycline Drug Release Property of Glutaraldehyde Crosslinked Hydrogel.

Delayed wound healing is one of the most common problems associated with diabetic patients. There are several factors associated with delayed wound healing. It has been observed that if not cured the wound healing takes a long time. This is the reason that researchers are engaged in developing sustainable, biodegradable, biocompatible, and effective wound-healing dressings. However, it has been observed that the traditional wound-healing bandages have drawbacks such as allergies and less efficiency in the absorption of wound exudate. To fill the gap, hydrogels have been developed recently which have higher absorption capacity. In addition, they pose slow drug release properties. Therefore, the present study was conducted to prepare an effective and promising hydrogel that has high drug absorption and release properties.

Amoxycillin/Clavulanic acid monotherapy in complicated paediatric appendicitis: Good enough?

BACKGROUND: Antibiotic choice for complicated appendicitis should be based on both microbiological effectiveness as well as ease of administration and cost especially in lower resourced settings. Data is limited on comparative morbidity outcomes for antibiotics with similar microbiological spectrum of activity. Incidence and morbidity of surgical site infection after appendectomy for complicated appendicitis was assessed after protocol change from triple antibiotic (ampicillin, gentamycin, and metronidazole) regimen to single agent (amoxycillin/clavulanic acid). METHODS: Surgical site infection (SSI) rate, relook surgery rate and length of hospital stay were retrospectively compared in patients treated for acute appendicitis preceding (2014, 2015; "triple-therapy, TT") and following (2017, 2018; "single agent, SA") antibiotic protocol change. RESULTS: The rate of complicated appendicitis was similar between groups; 72.6% in TT and 66% in SA (p = 0.239). Significantly, SSI occurred in 22.7% of the SA group compared to 13.3% in TT group (OR 1.920, 95% CI 1.000-3.689, p = 0.048). Use of laparoscopy increased from 31% in TT to 89% in SA, but with subgroup analysis this was not associated with increased SSI (17.3% in open and 20.6% in laparoscopic; OR 0.841, 95% CI 0.409-1.728, p = 0.637). Relook rate (OR 1.444, 95% CI 0.595-3.507, p = 0.093) length of hospital stay (U = 6859, z = -1.163, p = 0.245), and ICU admission (U = 7683, z = 0.634 p = 0.522) were equivocal. Neither group had mortalities. CONCLUSIONS: Despite increased SSI with SA, overall morbidity relating to ICU admission, relook rate and length of hospital stay was similar in both groups. More prospective research is required to confirm equivalent overall morbidity and that single agent therapy is more cost-effective with acceptable clinical outcomes.

Icariin in Combination with Amoxycillin-Clavulanate and Ampicillin, but Not Vancomycin, Increases Antibiotic Sensitivity and Growth Inhibition against Methicillin-Resistant Staphylococcus aureus.

The widespread irrational use of antibiotics in recent years has resulted in an increase in the detection of multi-resistant bacterial strains, particularly methicillin-resistant Staphylococcus aureus (MRSA). The use of natural derivatives such as flavonoids is postulated as one of the most promising avenues to solve this emerging public health problem. The objective of the present study is to characterize the antimicrobial activity of icariin, a flavonoid compound isolated from a variety of plants of the Epimedium genus, against human and animal clinical MRSA isolates. Our study found that icariin alone did not have any antimicrobial effect on S. aureus or MRSA clinical isolates. However, icariin enhanced the effect of amoxycillin-clavulanate or ampicillin, whereas no effect was seen when used in combination with vancomycin. Specifically, co-incubation of S. aureus with amoxycillin-clavulanate plus icariin resulted in an increased proportion of dead cells, suggesting that this flavonoid potentially increases antimicrobial activity when used in combination with the beta-lactam antibiotic amoxycillin-clavulanate. Furthermore, we demonstrate that co-incubation of S. aureus with AmoxyClav plus icariin resulted in increased membrane disruption and growth inhibition. This study demonstrates the potential utility of icariin in permitting lower antibiotic therapeutic doses in alignment with strategies to reduce the spread of antibiotic resistance. Further research is required to determine the optimum concentration of icariin and to define clinically relevant combinations of flavonoid and antibiotic.

Management of Enteral Nutrition in the Pediatric Intensive Care Unit: Prokinetic Effects of Amoxicillin/Clavulanate in Real Life Conditions.

PURPOSE: Malnutrition is a common feature in critically ill children. Enteral nutrition (EN) is the main strategy to nutritionally support critical ill children, but its use can be hindered by the development of intolerance. The study aimed to assess the effectiveness and safety of amoxicillin/clavulanate (A/C) to treat EN intolerance. METHODS: We retrospectively evaluated patients admitted to the pediatric intensive care unit from October 2018 to October 2019. We conducted a case-control study: in the first 6 months (October 2018-April 2019) we implemented the nutritional protocol of our Institution with no drug, whereas in the second half (May 2019-October 2019) we employed A/C for 1 week at a dose of 10 mg/kg twice daily. RESULTS: Twelve cases were compared with 12 controls. At the final evaluation, enteral intake was significantly higher than that at baseline in the cases (from 2.1±3.7 to 66.1±27.4% of requirement, p=0.0001 by Wilcoxon matched-pairs signed rank test) but not in the controls (from 0.2±0.8 to 6.0±14.1% of the requirement, p=NS). Final gastric residual volume at the end of the observation was significantly lower in the cases than in the controls (p=0.0398). The drug was well tolerated as shown by the similar safety outcomes in both cases and controls. CONCLUSION: Malnutrition exposes critically ill children to several complications that affect the severity of disease course, length of stay, and mortality; all may be prevented by early EN. The development of intolerance to EN could be addressed with the use of A/C. Future prospective clinical trials are needed to confirm these conclusions.

Characterization and Antimicrobial Susceptibility of Pathogens Associated with Periodontal Abscess.

Knowledge of microbial composition and antimicrobials' susceptibility to periodontal abscesses is vital for their successful treatment. The current study aims to provide a thorough overview of the clinical and microbial features of periodontal abscesses of the local community. The study was carried out at Rehman College of Dentistry, Peshawar, Pakistan between December 2019 to March 2020. Clinical measurements and microbial samples were collected from 45 subjects. Microbial samples were anaerobically cultured for the growth of selected bacterial species. E-test was used to assess the susceptibility of bacterial species grown from the patient samples to amoxicillin, azithromycin, metronidazole, and tetracycline. The majority of affected patients had preexisting chronic periodontitis. All abscesses clinically demonstrated bleeding on probing and suppuration. The periodontal abscess was most commonly associated with lower incisors and canines, followed by lower molars and then upper incisor and canine teeth. Fusobacterium spp. (73%) was the most frequently detected species followed by Prevotella intermedia/nigrescens (65%), Porphyromonas gingivalis (46%) and Aggregatibacter actinomycetemcomitans (24%). The detected clinical isolates of certain bacteria demonstrated resistance to all tested antibiotics except azithromycin. We conclude that Fusobacterium spp., P. intermedia/nigrescens, P. gingivalis, C. rectus, T. forsythia and A. actinomycetemcomitans are closely associated with periodontal abscess. Bacterial species associated with periodontal abscess demonstrated some level of antimicrobial resistance to amoxicillin, metronidazole and tetracycline while antibiotic resistance to azithromycin could not be demonstrated.

Occupational Exposure to Antibiotics in Poultry Feeding Farms.

Today, antibiotics are essential for effective treatment of infectious diseases both in human and veterinary medicine. The increasing development and distribution of antibiotic-resistant microorganisms are subject of concern. In some sectors of animal agriculture, such as poultry feeding farms, the application of antibiotics and hence occupational exposure is inevitable. In the past, numerous studies focussed on the occurrence of antibiotic-resistant bacteria in livestock farming, but little attention was paid to the employees. The exposure of workers to antibiotics was the focus of the study detailed in this article. Four biomonitoring campaigns monitoring systemic exposure of workers to antibiotics were run at two farms over four fattening periods. Urine samples of potentially affected employees were sampled and analysed for the antibiotics of interest by liquid chromatography-mass spectrometry. The highest antibiotic concentrations detected in urine samples exceeded the minimum inhibitory concentration of some bacteria strains. In some cases, the amount of antibiotics excreted over a time-period of 24 h indicated the exceedance of the tolerable daily intake.

The Friday evening case of acute kidney injury: a crystal dilemma.

We report a case of acute kidney injury (AKI) induced by amoxycillin crystalluria suggested by massive amounts of urinary crystals of unusual morphology. This hypothesis was further reinforced by a particular solubility pattern when the urine sample was exposed to various temperatures, alkali, acids and alcohol. We therefore suspended amoxycillin, which produced a rapid and complete recovery of kidney function. Infrared spectroscopy later confirmed the amoxycillin composition of the crystals. Since infrared spectroscopy is not easily available, we propose that these solubility tests of urinary crystals be used as a first-step investigation when amoxycillin crystalluria is suspected.

Amoxycillin and clavulanic acid induced Stevens-Johnson syndrome: A case report.

Stevens-Johnson syndrome (SJS) is an immune mediated hypersensitivity reaction. Significant involvement of oral, nasal, eye, vaginal, urethral, GI and lower respiratory tract mucous membrane may develop. It is usually a reaction due to a medication or due to an infection. In 95 % of case reports, drugs were found to be an important cause for the development of SJS. In this case report, a 32 year old female reported chief complaint of itch skin eruptions all over the body along with erosive lesions on tongue, lips, buccal mucosa and genital mucosa. The reaction occurred after administration of augmentin (containing amoxycillin and clavulanic acid). She was treated with antimicrobials, antiallergics and conservative management. The patient improved and was discharged from the hospital. Causality assessment using Naranjo Adverse Drug Reaction Probability Scale revealed that amoxycillin and clavulanic acid combination was a possible cause for the adverse reaction with a score of 4.

Antimicrobial, antioxidant properties and chemical composition of seaweeds collected from Saudi Arabia (Red Sea and Arabian Gulf).

The present study demonstrates the antibacterial activity of selected brown and green marine algae collected from Saudi Arabia Red Sea and Arabian Gulf. The methanolic and acetone extracts were tested against gram positive, gram negative bacteria and Candida albicans in an attempt to be used as an alternative to commonly used antibiotics. Both brown seaweed species Sargassum latifolium B and Sargassum platycarpum A methanolic extracts were found to be active against gram positive than gram negative; however, S. latifolium acetone extract gave the highest inhibitory activity against Salmonella sp. On the other hand, Cladophorasocialis organic extract demonstrated higher antibacterial activity than the fresh extract but both C. socialis extracts revealed decreased activity compared to Sargassum extracts. Cladophora methanolic extract showed an obvious effect on methicillin resistant Staphylococcus aureus (MRSA). The present work shows a comparable therapeutic potency of the tested seaweed members Sargassum and Cladophora extracts in treating human microbial pathogens to synthetic chemical antibiotics. A remarkable higher antioxidant DPPH free radical scavenging effect was recorded with Sargassum sp. compared to Cladophora sp. FTIR Infrared Spectrometer analysis together with the high performance liquid chromatography provided a detailed description of the possible functional constituents and the major chemical components present in marine macroalgae particularly in brown seaweeds to be mainly of phenolic nature to which the potent antimicrobial activity is being attributed.

Two cases of amoxycillin-induced follicular acute localised exanthematous pustulosis.

We report two cases of Caucasian women who developed folliculocentric pustulosis after exposure to amoxycillin. A literature review found that most amoxycillin-related pustular eruptions were reported as acute generalised exanthematous pustulosis (AGEP) or acute localised exanthematous pustulosis (ALEP). Histopathology from both our cases showed sterile suppurative folliculitis, which resolved on the cessation of amoxycillin.

Immediate tooth replantation in rats: effect of systemic antibiotic therapy with amoxicillin and tetracycline.

OBJECTIVES: The aim of this study was to evaluate the influence of systemic administration of antibiotics (amoxicillin and tetracycline) at the different phases of the repair process (7, 15, 30 days) in immediate rat tooth replantation. MATERIALS AND METHODS: Ninety rats had their incisors extracted and stored in saline for 5 min. Next, the teeth were replanted, and the animals were assigned to three groups according to the antibiotic administered by oral gavage: control group, amoxycillin group, and tetracycline group. Euthanasia was performed at 7, 15, and 30 days after replantation. RESULTS: Regardless of the evaluation period, the connective tissue underlying the epithelial attachment and the periodontal ligament showed statistically significant difference relative to the acute inflammatory infiltrate, which was more intense in the control group followed by the tetracycline group. CONCLUSION: These results point to the fact that systemic antibiotic therapy (SAT) in immediate tooth replantation is beneficial to pulpal and periodontal ligament repair and that amoxycillin is an excellent option. CLINICAL RELEVANCE: There is a lack of randomized studies assessing how the use of systemic antibiotics could influence tooth healing after immediate replantation.

Zika virus infection as an unexpected finding in a Leptospirosis patient.

INTRODUCTION: Areas where leptospirosis and arboviruses are endemic largely overlap in the tropics. However, the number of arbovirus infections is usually much higher. The initial clinical presentation can be highly confusing; therefore, laboratory confirmation is key to an accurate diagnosis. CASE PRESENTATION: A 19-year-old man presented to a peripheral health centre with an acute febrile illness. Dengue was initially suspected, but the patient deteriorated to a shock syndrome. Leptospirosis as well as a co-infection with Zika virus were both confirmed in the laboratory, the latter being clinically masked in this dual infection. CONCLUSION: This case highlights the importance of not only considering the differential diagnosis of acute febrile syndromes, but also to consider the possibility of dual infections in the context of global spread of arboviruses. The specific context of travellers returning from endemic areas and pregnant women is also highlighted and discussed.

Efeito da antibioticoterapia sistêmica com amoxicilina e tetraciclina no processo de reparo da injúria de luxação extrusiva / Effect of systemic antibiotic therapy with amoxicillin and tetracycline in the healing process of the injury extrusive luxation

A luxação extrusiva é uma injúria do ligamento periodontal caracterizada pelo deslocamento parcial do dente do seu alvéolo sendo que o tratamento preconizado consiste no reposicionamento, contenção e alguns autores recomendam a antibioticoterapia sistêmica (ATS). No entanto, não há nenhuma evidência para a utilização da ATS no reparo tecidual após a injúria de luxação extrusiva. O objetivo da pesquisa foi avaliar o efeito da ATS com Amoxicilina e Tetraciclina no processo de reparo da injúria de luxação extrusiva. Noventa ratos (Rattus norvegicus albinus), adultos, machos tiveram seus incisivos superiores direito luxados, deslocados 3mm no sentido axial e após 5 minutos reposicionados. Os animais foram aleatoriamente divididos em três grupos: Soro, Amoxicilina (25mg/Kg) e Tetraciclina (2,5mg/Kg). A medicação foi administrada de 12/12h por gavagem por um período de 7 dias. Os animais sofreram eutanásia nos períodos de 7, 15 e 30 dias após a luxação. A análise estatística foi realizada por meio dos testes de Kruskal-Wallis e pós-teste de Dunn’s de múltipla comparação ao nível de 5%. O tecido conjuntivo subjacente à inserção epitelial apresentou um infiltrado inflamatório agudo que foi de menor intensidade e extensão no grupo Amoxicilina nos três períodos pós-operatório analisados. Em todos os grupos o ligamento periodontal estava organizado e o infiltrado inflamatório agudo só apresentou diferença significante aos 7 e 15 dias com melhor resultado para o grupo Amoxicilina. Com relação ao infiltrado inflamatório crônico, tanto na intensidade quanto na extensão, foi maior no grupo Soro. Ocorreram poucas áreas de reabsorção radicular em todos os grupos sem diferença significante. O tecido pulpar na maioria dos espécimes em todos os grupos apresentou calcificações. Pode-se concluir que a antibioticoterapia sistêmica tem um efeito positivo noprocesso de reparo da luxação extrusiva e que a amoxicilina é uma boa opção.

The extrusive luxation is a periodontal ligament injury characterized by partial dislocation of the tooth its alveolus and that the recommended treatment consists of repositioning, contain and some authors recommend systemic antibiotic therapy (SAT). However, there is no evidence for the use of SAT in tissue repair after injury extrusive luxation. The objective is to evaluate the effect of SAT with Amoxicillin and Tetracycline in the repair process of the injury of extrusive luxation. Ninety rats (Rattus norvegicus albinus), adult male had his dislocated right incisor, moved 3 mm in the axial direction and after 5 minutes repositioned. The animals were randomly divided into three groups: Saline, Amoxycillin (25mg/kg) and Tetracycline (2,5mg/kg). The drug is administered of 12/12h by gavage for a period of 7 days. The animals were euthanized at 7, 15 and 30 days after the dislocation. Statistical analysis was performed using the Kruskal-Wallis test and Dunn’s post-test for multiple comparison to the level of 5%. The underlying connective tissue to the epithelial attachment presented an acute inflammatory infiltrate that was less intensity and extent in the Amoxicillin group in the three postoperative periods analyzed. In all groups the periodontal ligament was organized and acute inflammatory infiltrate showed only significant difference at 7 and 15 days with best result for the amoxicillin group. In relation to the chronic inflammatory infiltrate in both the intensity and the extent was greater in the Saline group. There have been few areas of root resorption in all groups with no significant difference. The pulp tissue in most specimens in all groups had calcifications. It can be concluded that systemic antibiotic therapy has a positive effect on the extrusive luxation repair process and that amoxicillin is an good option.

Efeito da antibioticoterapia sistêmica com amoxicilina e tetraciclina no processo de reparo da injúria de luxação extrusiva / Effect of systemic antibiotic therapy with amoxicillin and tetracycline in the healing process of the injury extrusive luxation

A luxação extrusiva é uma injúria do ligamento periodontal caracterizada pelo deslocamento parcial do dente do seu alvéolo sendo que o tratamento preconizado consiste no reposicionamento, contenção e alguns autores recomendam a antibioticoterapia sistêmica (ATS). No entanto, não há nenhuma evidência para a utilização da ATS no reparo tecidual após a injúria de luxação extrusiva. O objetivo da pesquisa foi avaliar o efeito da ATS com Amoxicilina e Tetraciclina no processo de reparo da injúria de luxação extrusiva. Noventa ratos (Rattus norvegicus albinus), adultos, machos tiveram seus incisivos superiores direito luxados, deslocados 3mm no sentido axial e após 5 minutos reposicionados. Os animais foram aleatoriamente divididos em três grupos: Soro, Amoxicilina (25mg/Kg) e Tetraciclina (2,5mg/Kg). A medicação foi administrada de 12/12h por gavagem por um período de 7 dias. Os animais sofreram eutanásia nos períodos de 7, 15 e 30 dias após a luxação. A análise estatística foi realizada por meio dos testes de Kruskal-Wallis e pós-teste de Dunn’s de múltipla comparação ao nível de 5%. O tecido conjuntivo subjacente à inserção epitelial apresentou um infiltrado inflamatório agudo que foi de menor intensidade e extensão no grupo Amoxicilina nos três períodos pós-operatório analisados. Em todos os grupos o ligamento periodontal estava organizado e o infiltrado inflamatório agudo só apresentou diferença significante aos 7 e 15 dias com melhor resultado para o grupo Amoxicilina. Com relação ao infiltrado inflamatório crônico, tanto na intensidade quanto na extensão, foi maior no grupo Soro. Ocorreram poucas áreas de reabsorção radicular em todos os grupos sem diferença significante. O tecido pulpar na maioria dos espécimes em todos os grupos apresentou calcificações. Pode-se concluir que a antibioticoterapia sistêmica tem um efeito positivo noprocesso de reparo da luxação extrusiva e que a amoxicilina é uma boa opção

The extrusive luxation is a periodontal ligament injury characterized by partial dislocation of the tooth its alveolus and that the recommended treatment consists of repositioning, contain and some authors recommend systemic antibiotic therapy (SAT). However, there is no evidence for the use of SAT in tissue repair after injury extrusive luxation. The objective is to evaluate the effect of SAT with Amoxicillin and Tetracycline in the repair process of the injury of extrusive luxation. Ninety rats (Rattus norvegicus albinus), adult male had his dislocated right incisor, moved 3 mm in the axial direction and after 5 minutes repositioned. The animals were randomly divided into three groups: Saline, Amoxycillin (25mg/kg) and Tetracycline (2,5mg/kg). The drug is administered of 12/12h by gavage for a period of 7 days. The animals were euthanized at 7, 15 and 30 days after the dislocation. Statistical analysis was performed using the Kruskal-Wallis test and Dunn’s post-test for multiple comparison to the level of 5%. The underlying connective tissue to the epithelial attachment presented an acute inflammatory infiltrate that was less intensity and extent in the Amoxicillin group in the three postoperative periods analyzed. In all groups the periodontal ligament was organized and acute inflammatory infiltrate showed only significant difference at 7 and 15 days with best result for the amoxicillin group. In relation to the chronic inflammatory infiltrate in both the intensity and the extent was greater in the Saline group. There have been few areas of root resorption in all groups with no significant difference. The pulp tissue in most specimens in all groups had calcifications. It can be concluded that systemic antibiotic therapy has a positive effect on the extrusive luxation repair process and that amoxicillin is an good option

Clinical Observation of Three Kinds of Drug Regimens in the Treatment of Active Chronic Gastritis with Heli-cobacter Pylori Infection / 中国药房

OBJECTIVE:To observe the Hp eradication situation and safety of three kinds of drug regimen in the treatment of active chronic gastritis with helicobacter pykori(Hp)infection. METHODS:150 active chronic gastritis patients with Hp infection were randomly divided into group A(50 cases),group B(50 cases)and group C(50 cases). Group A received Omeprazole enter-ic-coated capsule 20 mg,orally,twice a day+Amoxycillin capsules 1.0 g,orally,3 times a day+Clarithromycin tablet 0.5 g,oral-ly,once a day. Group B additionally received Colloidal bismuth pectin capsule 150 mg,orally,3 times a day. Group C received Omeprazole enteric-coated capsule 20 mg,orally,twice a day+Amoxycillin capsules 1.0 g,orally,3 times a day,1-5 d,Omepra-zole enteric-coated capsule 20 mg,orally,twice a day+ Clarithromycin tablets 0.5 g,orally,once a day+Metronidazole tablet 0.4 g,twice a day,6-10 d. All patients treated for 10 d. Effective rate of pain relief,relief time of pain and gastrointestinal symptoms, Hp eradication rate,recurrence after 12 follow-up and the incidence of adverse reactions in all groups were observed. RESULTS:Effective rate of pain relief and Hp eradication rate in group C were higher than group B,followed by group A,relief time of pain and gastrointestinal symptoms,recurrence rate in group C were lower than group B,which was lower than group A,with signifi-cant differences (P0.05). CONCLUSIONS:Taking omeprazole in stages combined with antibiotics can effectively relieve abdominal pains,shorten disease course,improve Hp eradica-tion rate,reduce long-term recurrence rate in the treatment of active chronic gastritis with Hp infection,with good safety.

Current Trend of Antimicrobial Prescription for Oral Implant Surgery Among Dentists in India.

OBJECTIVES: The aim of our study was to evaluate antimicrobial prescription behaviour amongst dentists performing oral implant surgery in India. STUDY DESIGN: Dentists performing oral implant surgery from different parts of India were personally approached during various national events such as conferences and academic meetings and information regarding their prescription habits for antimicrobial agents in routine oral implant surgery was collected using a structured questionnaire. RESULTS: Out of a total sample of 332 dentists, 85.5 % prescribed 17 different groups or combinations of antibiotics routinely for oral implant surgery in the normal healthy patient. Majority preferred the peri-operative protocol of drug therapy (72.2 %) with variable and prolonged duration of therapy after surgery, ranging from 3 to 10 days. An antimicrobial mouthwash was routinely prescribed by all the doctors (14.5 %) not in favour of prescribing antimicrobials in a normal healthy patient. CONCLUSIONS: Our findings suggest that there is a trend of antimicrobial agent misuse by dentists performing oral implant surgery in India, both in terms of drugs used and the protocols prescribed. The majority of these dentists prescribed a variety of antimicrobial agents for prolonged durations routinely even in the normal, healthy patients.

Sensibilidad a la amoxicilina de bacterias anaerobias de pacientes con periodontitis agresiva / Susceptibility to amoxycillin of anaerobic bacteria in patientswith aggressive periodontitis

Introducción y ObjetivoSe han utilizado los antibióticos como terapia adjunta al tratamiento periodontal. La amoxicilina y la amoxicilina/ ácido clavulánico son algunos de los más utilizados. Establecer el tipo de bacterias y su sensibilidad a la amoxicilina y a la amoxicilina/ácido clavulánico en pacientes con periodontitis agresiva. Materiales y MétodosEste estudio in vitro estableció la sensibilidad a la amoxicilina y a la amoxicilina/ácido clavulánico de las bacterias aisladas de 19 pacientes con periodontitis agresiva. Se obtuvieron muestras de 6 sitios con bolsas iguales o mayores a 7 mm de profundidad, se realizó cultivo y aislamiento de colonias en condiciones anaeróbicas. Laidentificación de los microorganismos se realizó a través de la coloración de Gram y el Sistema Crystal paraanaerobios; para determinar la sensibilidad a los antibióticos se utilizó la técnica descrita por Wilkins y Thiel.ResultadosEn la periodontitis localizada los microorganismos que se presentaron con mayor frecuencia fueron Veillonellaspecies, Peptostreptococcus prevotii, Staphylococcus saccharoliticus, Bacteroides fragilis, Bacteroidesureolyticus. En la periodontitis generalizada se encontró Fusobacterium nucleatum, Veillonella species, Peptostreptococcus prevotii, Peptostreptococcus saccharolitucus, Staphylococcus saccharoliticus. De las 21 especies identificadas, en la periodontitis localizada 4 fueron resistentes a la amoxicilina y 1 resistente a la amoxicilina/Acido clavulánico. En la periodontitis generalizada se encontró 1 microorganismo resistente a laamoxicilina y 1 resistente a la amoxicilina/Acido clavulánico.ConclusiónSe encontraron bacterias resistentes a la amoxicilina y a la amoxicilina/ácido clavulánico.

Introduction and ObjectiveAntibiotics have been used as an adjunct to periodontal treatment. Amoxicillin and amoxicillin/clavulanicacid are some of the most used.To define the type of bacteria and their susceptibility to amoxycillin and to amoxicillin/clavulanic acid inpatients with aggressive periodontitis.Materials and MethodThis descriptive study stated susceptibility to amoxycillin and to amoxicillin/clavulanic acid of bacteriaisolated from 19 patients with aggressive periodontitis, selected by convenience. Samples from six(6) different sites with periodontal pockets equal or greater than 7 mm of depth were obtained. Thesamples were cultured anaerobically and the isolated colonies were identified by means of the Gramstaining procedure and the Crystal System for anaerobics. The Wilkins and Thiel test was used to assesssusceptibility.ResultsThe microorganisms with the highest presence in localized periodontitis were Veillonella species,Peptostreptococcus prevotii, Staphylococcus saccaharolyticus, Bacteroides fragilis and Bacteroidesureolyticus. Fusobacterium nucleatum, Veillonella species, Peptostreptococcus prevotii, Peptostreptococcussaccharolyticus and Staphylococcus saccharolyticus were found in generalized periodontitis. Four out ofthe 21 microorganisms species identified in localized periodontitis 4 were resistant to amoxycillin and oneto amoxicillin/clavulanic acid. One microorganism was identified as resistant to amoxycillin and one toamoxicillin/clavulanic acid in generalized periodontitis.ConclusionAmoxycillin-resistant and amoxycillin/clavulanic acid-resistant bacteria were found.

Bacillus claussi: en el tratamiento de erradicación del Helicobacter pylori: para reducir los síntomas adversos del tratamiento triple / Bacillus claussi: in the treatment of Helicobacter pylori eradication: to reduce the adverse symptoms of triple therapy

El tratamiento aceptado para la infección por Helicobacter pylori es el uso de inhibidores de bomba de protones (IBP), más dos antibióticos, siendo considerado de primera línea la amoxicilina y la claritromicina. Para el éxito del tratamiento es indispensable el cumplimiento dle mismo y es aquí donde el fracaso en la erradicación del Helicobacter pylori está relacionado al incumplimiento del tratamiento debido a los efectos adversos: náuseas, vómitos, diarrea y alteraciones del gusto. Para investigar la eficacia de la terapia triple para el Helicobacter pylori asociada a un probiótico ( Bacullus Claussi) se realizó un estudio prospectivo, con muestreo no probabilístico, intencional en 100 pacientes desde agosto de 2010 hasta febrero de 2011. Los pacientes fueron distribuidos en 2 grupos de 50 cada uno para recibir: grupo A. Esomeprazol, amoxicilina y claritromicina y grupo B; Esomeprazol, amoxicilina, claritromicina y Bacillus claussi. Se logró la erradicación del Helicobacter pylori en 96% de los pacientes del grupo B en comparación del 80% del grupo A (P = 0,027). El efecto adverso más importante fue la diarrea en el grupo A. La asociación de inhibidores de bomba de protones, antibióticos y Bacillus calussi aumentó el porcentaje de erradicación de Helicobacter pylori, evitando el abandono del tratamiento por la presencia de efectos adversos.

The consensus treatment for Helicobacter pylori infection is based on a Proton Pump Inhibitor plus two antibiotics being considered as first choice amoxicillin and clarithromycin. For a succesfull treatment is primordial its completion and here is where the failure on the Helicobacter pylori infection eradication is relationed to the non fulfillment because of its adverse effects: nauseas, vomiting, diarrhea and alterations of testing. In order to investigate the efficiency of triple therapy treatment associated to a probiotic (Bacillus claussi), its was made a prospective study with no probabilistic and intentional sampling in 100 patients since august, 2011 to february, 2011. Patients were distribuited in two groups of 50 each one, in order to receive the following treatment: Group A: Esomeprazole, amoxicillin and clarithromycin. Group B: Esomeprazole, amoxicillin, clarithromycin and Bacillus claussi. Eradications of helicobacter pylori infections was obtained in 96% of group patients, in comparation to 80% of group a patients (P = 0,027). The adverse effect most important was diarrhea on the group A. The association of PPI, antibiotics and Bacillus claussi improved the percentage of eradication of Helicobacter pylori infection, avoiding the give up of treatment because the presence of adverse effects.

In-vitro activity of synercid and related drugs against Streptococcus oralis isolated from septicaemia and endocarditis cases.

OBJECTIVE: The increase in resistance to gram positive organisms and seriousness of infective endocarditis, makes it necessary to look for an alternate treatment. METHOD: In-vitro activity of synercid was compared with penicillin, amoxycillin, teicoplanin, vancomycin, clindamycin and erythromycin. RESULT: Synercid showed minimum inhibitory concentrations (MIC) within the narrow range of 0.06 - 0.5 mg/l. MIC50 and mode values were both 0.25 mg/l. There was just two-fold difference between the MIC50 (0.25 mg/l) and the MIC90, (0.5 mg/l). Although the MICs of synercid for S. oralis were relatively high compared to penicillin, clindamycin, erythromycin and teicoplanin, the in-vitro bactericidal activity of synercid was much greater. Synercid MBC values were < 4 mg/l for most of the isolates, except for one of 16 mg/l and the other >64 mg/l. Killing curve was performed on six isolates of S. oralis from infective endocarditis, two from septicaemia patients and two from the oral flora of normal individuals. CONCLUSION: Synercid showed superior bactericidal activity when compared to penicillin and vancomycin against all ten isolates of S. oralis tested. Synercid was bactericidal (99.9% kill) against all ten isolates of S. oralis within six hours of contact.

The properties and use of penicillins in the veterinary field, with special reference to skin infections in dogs and cats.

The use of the penicillins in veterinary dermatology is discussed. An outline is provided of the main penicillins used in the veterinary field. These include benzyl penicillin, penicillin V, ampicillin, amoxycillin, co-amoxiclav and oxacillin. An increase in ß-lactamase production among strains of Staphylococcus intermedius, the principal canine pathogen in pyoderma, has been seen in recent years. Thus only those penicillins with resistance to ß-lactamase (co-amoxiclav or isoxazolyl penicillins) are likely to be of value in treating canine pyoderma. However, feline, porcine and equine staphylococcal dermatoses, and other veterinary dermatoses such as the actinomycoses, dermatophilosis and erysipelothrix, usually respond well to most penicillins, whether or not they resist ß-lactamase.