A new high-performance liquid chromatography (HPLC) method for the simultaneous quantitative determination of active pharmaceutical substances and preservatives in a new dental medication has been developed. The optimization of HPLC method parameters was done through studies of a mobile phase composition and a detection wavelength. Our developing method uses an ACE C18 column (250 × 4.6 mm, 5 µm) and a gradient mode for separation with the acetonitrile and phosphate buffer solution (adjusted to pH 3.0) as mobile phases. The flow rate is 1 ml/ min, and the detection was set at 260 nm (DAD). The method was evaluated according to the ICH guidelines and the State Pharmacopoeia of Ukraine in terms of specificity, accuracy, linearity and precision (repeatability and intermediate precision). The limit of detection and the limit of quantification were also calculated. The developed method was put in place for the analysis of a combined dental gel to a quantitative determination of the APIs (choline salicylate, lidocaine hydrochloride) and preservatives (methylparaben, propylparaben).
The aim: to assess the state of pharmaceutical provision of patients with dementia in Alzheimer's disease in Ukraine in accordance with international recommendations. Materials and methods. In our studies, we used data from international guidelines, clinical protocols that regulate the organization of medical and pharmaceutical care for these patients in the USA, Australia, Japan, Germany, Great Britain, Finland, India, Kazakhstan, and Ukraine. The actual state of pharmaceutical provision of these patients in Ukraine was studied using a depersonalized database of medical prescriptions, which operates based on a number of specialized healthcare institutions. In addition, data from the Morion information search system were used. We used general theoretical (historical, formal, graphic, hypothetical-deductive, etc.) and applied (clinical-economic, organizational-economic, mathematical-statistical, etc.) research methods. Results. It has been established that a consolidated opinion has been formed in the world scientific community regarding the possibility of effective use in the pathogenetic treatment of patients with dementia in Alzheimer's disease of drugs from the groups N06DA Acetylcholinesterase inhibitors and N06DX-Other drugs for use in case of dementia. Thus, the pharmaceutical component of international recommendations, clinical protocols for the treatment of patients with dementia in Alzheimer's disease contains four drugs used in pathogenetic therapy. These are N06DA02 Donepezil, N06DA03 Rivastigmine, N06DA04 Galantamine and N06DX01 Memantine. It has been reported that all the above drugs are included in the domestic clinical protocol for the treatment of patients with dementia in Alzheimer's disease, the State Drug Formulary (with the exception of N06DA03 Rivastigmine), and the State Drug Registry. At the same time, all of them were absent from the National List of Essential Drugs, which has an important socio-economic and medical-pharmaceutical significance in the health care system. It was found that patients (200 people) received 2487 prescriptions (100.0 %), among which 9.41 % (234 prescriptions) were drugs used in pathogenetic treatment. There is a highly disproportionate nature of the distribution of prescriptions and consumption by international generic names of drugs. Thus, drugs N06DX01 Memantine accounted for 80.41 % (188 prescriptions) of all prescriptions in the group N06D Drugs for use in dementia, and the consumption rate was UAH 84420.20, which accounted for 91.48 % of the amount of expenses directed to patients with carrying out pathogenetic treatment. Significant dominance of drugs N06DX01 Memantine in the structure of prescriptions and consumption indicates the presence of severe, advanced forms of dementia in patients. This fact once again emphasizes the need for early detection and treatment of cognitive impairment, primarily for the rational use of limited health care resources. We have found that there are no prescriptions for N06D A04 Galantamine preparations, which are recommended by the relevant international recommendations in different countries of the world, as well as by the domestic clinical protocol for the pathogenetic treatment of mild and moderate forms of Alzheimer's disease. At the same time, N06DA05 Ipidacrine preparations were used in the treatment of domestic patients, which are not presented in the pharmaceutical component of international recommendations and protocols governing the pathogenetic treatment of the above-mentioned groups of neuropsychiatric patients. Conclusions. The peculiarities of the formation of the pharmaceutical component in the organization of the treatment process of patients with dementia in Alzheimer's disease in Ukraine, established by us, allow further research on the development of rational ways of resource provision of neuropsychiatric patients
The aim. To conduct the research on the choice of the basis for a mild drug with a semi-solid extract of feverfew for use in dermatology. Materials and methods. In the study of the solubility of a semi-solid extract of feverfew (SSFE) used the method of optical microscopy using a laboratory microscope “Konus Academy”. Determination of pH and homogeneity of the studied samples was performed according to the methods described in SPhU, Vol.1. The bioavailability of the model samples was investigated by diffusion in 3 % agar gel. Colloidal stability and thermal stability were determined according to the methods of GOST 29188.3-91. Measurements of rheological parameters were performed on a rotary viscometer “MYR 3000 V 2R” (Viskotech, Spain). Determination of particle distribution was performed using a laser diffraction analyzer of particle size Mastersizer 3000. Results. The best results in determining the organoleptic properties, stability and degree of release of biologically active substances (BAS) showed samples prepared on emulgel and gel bases. Structural and mechanical parameters of the samples on these bases proved the presence of a non-Newtonian type of flow with plastic and thixotropic properties. When determining the distribution of SSFE particles by optical diffraction, their smaller size was determined in the sample on an emulgel basis in comparison with the gel. Conclusions. Emulgel loaded with specific drugs has been found effective in some topical disorders, and it is emerging as potential drug delivery system in the area of dermatology. Since emu-lgel shows enhanced spreadability, adhesion, viscosity and extrusion. Based on the obtained results, an emulsion gel base was chosen as a carrier for a semi-solid drug with SSFE
In a child, cystitis (non-specific microbial inflammation of the mucous membrane of the bladder) is considered to be a dangerous disease; the prolongation of the process is usually associated with a delayed diagnosis. The aim of this work was to analyze the health status of the child population of the Chernivtsi region, especially the dynamics of the prevalence and incidence of cystitis. The official statistical data have been studied (reports on the state of medical care for children in the Chernivtsi region and data from the Center of Medical Statistics of the Ministry of Healthcare from 2006 to 2017); information-analytical and statistical methods have been used for the purpose of this study. Attention should be drawn to the significantly high prevalence of cystitis among children aged 15–17 years, especially in the Chernivtsi region as during period I (8.7±0.6 vs. 4.3±0.3 in Ukraine) and II (11.7±1.0 and 5.7±0.4, respectively, per 1000 people). Moreover, over the years, the growth of indicators acquires intensity, while this process is more than twice as pronounced in Chernivtsi. Thus, the growth rate was 65.0% in 2006–2011 and 90.3% in 2012–2017 vs. 27.2% and 32.8% in Ukraine, respectively. The identified data indicate the need to provide specialized care to children with infectious and inflammatory diseases of the urinary system of the Chernivtsi region and the need to improve regional clinical routes of patients with infectious and inflammatory diseases of the urinary system.
The purpose of the study was to substantiate and develop the improved model of the specialized nephrology care for the children with infectious inflammatory diseases of the urinary system at the regional level. Materials and methods. The official statistical data have been studied (reports on the state of medical care for children in the Chernivtsi region and data from the Center of medical statistics of the Ministry of Healthcare from 2006 to 2017), information-analytical and statistical methods have been used. The modern etiological structure of uropathogens – urinary tract infection pathogens among the children of the Chernivtsi region (2009-2016) was studied. Clinical and laboratory examination of 3,089 children (0-17 years old) was conducted in the region; the regional spectrum of sensitivity to antibacterial drugs was determined among the main groups of urinary tract infection pathogens; their age, gender and administrative-territorial differences among the children's population of the region are analyzed. Results and discussion. During 2012-2017 there was a significant increase (by 23.0%) in the incidence of infectious and inflammatory groups of the urinary system diseases among children of 0-14 years old, while among adolescents there was simultaneously an intensive decrease in indicators (by 40.0%) compared to 8.7% in 2006-2011. The ratio of indicators and their dynamics suggests that the growth of sick adolescents is largely due to the insufficient effectiveness of medical care, while children of 0-14 years old is due to their low and insufficient prevention. The data formed the foundation for substantiation and development of an improved functional-organizational model of the system. In addition to the existing and functionally changed elements the model contains new elements: regional/inter-regional center of specialized medical aid for children with infectious-inflammatory diseases of the urinary system. Conclusion. Implementation of the elements of the suggested improved model in a part of a rational approach in distribution of functions concerning medical observation of patients at the stages of providing medical aid enabled to make the period of hospitalization of nephrological patients by 11.40% shorter and an average period of treatment of patients with infectious-inflammatory diseases of the urinary system by 2.93% shorter. Efficiency of implementation of certain elements of the suggested model with its positive evaluation by independent experts and its compliance with the strategy of branch reforms enables to recommend the improved functional-organization model of providing medical aid for children with infectious-inflammatory diseases of the urinary system at the regional level to be introduced into the health care system of Ukraine
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