Noninvasive Analyzer Research Articles

Changes in Ocular Surface Status after 25-gauge Pars Plana Vitrectomy

Purpose: We used a noninvasive ocular surface analyzer to explore changes in the ocular surface parameters of patients who underwent 25-gauge pars plana vitrectomy (PPV).Methods: The medical records of 82 patients (163 eyes) who underwent PPV were retrospectively reviewed. The non-invasive tear film break-up time (NIBUT), the lipid layer thickness, meibomian gland loss status, and the tear meniscus height were measured before, and 1 and 3 months after treatment. Consecutive changes in the ocular surface indices of operative and non-operative fellow eyes were statistically compared. Also, factors that reduced the NIBUT at 1 month after surgery were analyzed.Results: One month after surgery, the NIBUT was significantly decreased in the operative group compared to before surgery (<i>p</i> = 0.006). Compared to non-operative eyes, the NIBUT of operative eyes decreased significantly 1 month after surgery (<i>p</i> = 0.003). Older age and lower preoperative NIBUT (<i>p</i> = 0.029, <i>p</i> = 0.002) were significantly associated with lower NIBUT 1 month after surgery.Conclusions: Twenty-five gauge PPV significantly reduces the NIBUT 1 month after surgery.

Titanium Dioxide Nanoparticles Induce Maternal Preeclampsia-like Syndrome and Adverse Birth Outcomes via Disrupting Placental Function in SD Rats.

The escalating utilization of titanium dioxide nanoparticles (TiO2 NPs) in everyday products has sparked concerns regarding their potential hazards to pregnant females and their offspring. To address these concerns and shed light on their undetermined adverse effects and mechanisms, we established a pregnant rat model to investigate the impacts of TiO2 NPs on both maternal and offspring health and to explore the underlying mechanisms of those impacts. Pregnant rats were orally administered TiO2 NPs at a dose of 5 mg/kg body weight per day from GD5 to GD18 during pregnancy. Maternal body weight, organ weight, and birth outcomes were monitored and recorded. Maternal pathological changes were examined by HE staining and TEM observation. Maternal blood pressure was assessed using a non-invasive blood analyzer, and the urinary protein level was determined using spot urine samples. Our findings revealed that TiO2 NPs triggered various pathological alterations in maternal liver, kidney, and spleen, and induced maternal preeclampsia-like syndrome, as well as leading to growth restriction in the offspring. Further examination unveiled that TiO2 NPs hindered trophoblastic cell invasion into the endometrium via the promotion of autophagy. Consistent hypertension and proteinuria resulted from the destroyed the kidney GBM. In total, an exposure to TiO2 NPs during pregnancy might increase the risk of human preeclampsia through increased maternal arterial pressure and urinary albumin levels, as well as causing fetal growth restriction in the offspring.

Mechanisms Involved in the Antihypertensive Effects of Arbequina Table Olives

The Mediterranean Diet is associated with antihypertensive properties and prevention of cardiovascular disease. This dietary pattern includes the intake of Olea europaea L. derivatives such as extra virgin olive oil and table olives, characterized by a high content of bioactive compounds. Recently, it has been demonstrated that the supplementation of Arbequina table olives (AO) reduces blood pressure (BP) in spontaneously hypertensive rats (SHR). The aim of the present study was to elucidate the possible mechanisms involved in the antihypertensive effects of AO. Consequently, we have studied different plasmatic biomarkers (angiotensin II, Ang II; malondialdehyde, MDA; interleukin 6, IL6; tumor necrosis factor α, TNFα) and the fecal microbiota composition. Experiments were performed using male SHR from 14 to 21 weeks of age. SHR strain was divided into a control (SHR-c) and a treated group (SHR-o) that received water or AO (3.85 g/kg) by gavage, respectively. At the end of the experiment, BP was measured using a non-invasive automatic analyzer; Ang II, IL6, and TNFα were determined by Elisa, and MDA by spectrophotometric analysis. Fecal microbiota was analyzed by sequencing 16S rRNA gene using the Illumina MiSeq platform. Data were analyzed by t-Student or the Mann–Whitney U test, and statistical significance was considered when p<0.05. AO supplementation decreased systolic and diastolic BP by approximately 19 mmHg in SHR-o with respect to SHR-c. The decrement in BP was accompanied by a decrease in MDA (39%) and Ang II (32%) in SHR-o without changes in the concentrations of the proinflammatory cytokines IL6 and TNFα. Moreover, regular AO intake induced changes in the microbiota associated with the normalization of BP. Our results showed variations in relative abundance in genera such as Akkermansia, Sutterella, and Peptoniphilus, that were well correlated with the decrease in BP, MDA, and Ang II. In conclusion, OA supplementation reduced oxidative stress and Ang II associated with changes in the fecal microbiota that may explain the antihypertensive effect elicited by consumption of the fruit of Olea europaea L. Supported by grants AGL2013-41188 & 2021SGR300. INSA Maria de Maeztu Unit of Excellence grant CEX2021-001234-M. This is the full abstract presented at the American Physiology Summit 2024 meeting and is only available in HTML format. There are no additional versions or additional content available for this abstract. Physiology was not involved in the peer review process.

Assessment of meibomian gland dysfunction and dry eye disease by using novel noninvasive ocular surface analyzer in people with type 2 diabetes

Abstract Objective: To assess meibomian gland dysfunction (MGD) and dry eye disease in people with type 2 diabetes using a novel noninvasive ocular surface analyzer. Materials and Methods: This prospective study was conducted in the Ophthalmology Department, Baqai Institute of Diabetology and Endocrinology, Baqai Medical University, Karachi, from June to December 2020. MGD is defined as increased lipids and proteins in the meibomian glands, leading to increased severity of dry eye disease symptoms. People with type 2 diabetes underwent an ocular surface examination; lipid layer thickness, noninvasive breakup time, tear meniscus height, grading of meibomian gland loss, and expression of meibum by a noninvasive analyzer. MGD was graded based on minimal to mild, moderate, and marked symptoms and divided into four subtypes. Result: A total of 46 diabetic subjects, 24 (52.2%) were males and 22 (47.8%) were females, with a median age of 55 (50–67.5) and 48 (41.5–55.25) years. Most of the subjects had mild gland opening for both the right and the left eye (50% and 54.3%). MGD score 1 was found in 12 (26.7%) and 11 (24.4%) subjects for the right and the left eye, respectively. Score 2 was observed mostly in the right eye 32 (71.1%) while score 3 was more frequent in the left eye 27 (60%). Notably, the conjunctival and ciliary levels were predominantly normal. Conclusion: Most of the participants had moderate to severe loss of the meibomian gland in both eyes.

Comorbidity of cardiorespiratory and locomotor dysfunction following cervical spinal cord injury in the rat.

Cervical spinal cord injury interrupts supraspinal pathways innervating thoracic sympathetic preganglionic neurons and results in cardiovascular dysfunction. Both respiratory and locomotor functions were also impaired due to damages of motoneuron pools controlling respiratory and forelimb muscles, respectively. However, no study has investigated autonomic and somatic motor functions in the same animal model. The present study aimed to establish a cervical spinal cord injury model to evaluate cardiorespiratory response and locomotor activity in unanesthetized rats. Cardiovascular response and respiratory behavior following laminectomy or cervical spinal contusion were measured using noninvasive blood pressure analyzer and plethysmography systems, respectively. Locomotor activity was evaluated by an open-field test and a locomotor rating scale. The results demonstrated that mean arterial blood pressure and heart rate were significantly reduced in contused rats compared with uninjured rats at the acute injured stage. Tidal volume was also significantly reduced during the acute and subchronic stages. Moreover, locomotor function was severely impaired, evidenced by decreasing moving ability and locomotor rating scores from the acute to chronic injured stages. Retrograde neurotracer results revealed that cervical spinal cord injury caused a reduction in number of phrenic and triceps motoneurons. Immunofluorescence staining revealed a significant attenuation of serotonergic, noradrenergic, glutamatergic, and GABAergic fibers innervating the thoracic sympathetic preganglionic neurons in chronically contused rats. These results revealed the pathological mechanism underlying the comorbidity of cardiorespiratory and locomotor dysfunction following cervical spinal cord injury. We proposed that this animal model can be used to evaluate the therapeutic efficacy of potential strategies to improve different physiological functions.NEW & NOTEWORTHY The present study establishes a preclinical rodent model to comprehensively investigate physiological functions under unanesthetized condition following cervical spinal cord contusion. The results demonstrated that cervical spinal cord contusion is associated with impairments in cardiovascular, respiratory, and locomotor function. Respiratory and forelimb motoneurons and neurochemical innervations of sympathetic preganglionic neurons were damaged following injury. This animal model can be used to evaluate the therapeutic efficacy of potential strategies to improve different physiological functions.

Pigment Identification and Depth Profile in Pictorial Artworks by Non-Invasive Hybrid XRD-XRF Portable System

A non-invasive XRD-XRF portable system for Archaeometry based on Angle and Energy Dispersive XRD (Hybrid XRD) plus XRF has been previously proposed by the authors. It gathers an attractive compromise between analytical performance and measurement time, as well as a higher energy penetration with respect to conventional Angle Dispersive XRD (ADXRD). Penetration to inside layers, usually perceived as an inconvenient for non-invasive portable XRF or XRD analyzer, can instead be informative for the proposed hybrid XRD-XRF system to perform depth profiling analysis. This hybrid configuration harness from the redundancy of the data, in the sense that a single XRF or XRD specimen, taken at the same sample point, appears in multiple spectrograms to account for data counting statistics. On this work, the performance of the system on standard reference material, as well as the identification of pigments in the surface layer of paintings is evaluated. Specific Hybrid data processing was conceived to examine the layer structure of the painting, by distinguishing signal patterns of the exposed and the under layers. The system is ventured for the first time to the study of pictorial artworks in coffin and cartonnage samples from ancient Egyptian sarcophagi. Prussian blue pigment in a modeled painting is also discussed.

Opening a window to the acutely injured brain: Simultaneous retinal and cerebral vascular monitoring in rats.

Many recent research projects have described typical chronic changes in the retinal vasculature for diverse neurovascular and neurodegenerative disorders such as stroke or Alzheimer's disease. Unlike cerebral vasculature, retinal blood vessels can be assessed non-invasively by retinal vessel analysis. To date, there is only a little information about potential simultaneous reactions of retinal and cerebral vessels in acute neurovascular diseases. The field of applications of retinal assessment could significantly be widened if more information about potential correlations between those two vascular beds and the feasibility of non-invasive retinal vessel analysis in acute neurovascular disease were available. Here, we present our protocol for the simultaneous assessment of retinal and cerebral vessels in an acute setting in anesthetized rats using a non-invasive retinal vessel analyzer and a superficial tissue imaging system for laser speckle contrast analysis via a closed bone window. We describe the experimental set-up in detail, outline the pitfalls of repeated retinal vessel analyses in an experimental set-up of several hours, and address issues that arise from the simultaneous use of two different assessment tools. Finally, we demonstrate the robustness and variability of the reactivity of retinal vessels to hypercapnia at baseline as well as their reproducibility over time using two anesthetic protocols common for neurovascular research. In summary, the procedures described in this protocol allow us to directly compare retinal and cerebral vascular beds and help to substantiate the role of the retina as a "window to the brain."

Tear film layers and meibomian gland assessment in patients with type 1 diabetes mellitus using a noninvasive ocular surface analyzer: a cross-sectional case–control study

PurposeTo assess the tear film layers and Meibomian glands by a noninvasive ocular surface analyzer in patients with and without type 1 diabetes mellitus (T1DM).MethodsEighty-eight participants were enrolled in this study: 44 patients with T1DM without diabetic retinopathy, and 44 patients as a control group, between 18 and 49 years old. Limbal and bulbar redness classification, lipid layer thickness (LLT), tear meniscus height (TMH), first and mean noninvasive tear break-up time (FNIBUT and MNIBUT, respectively), and Meibomian glands loss (MGL) were assessment through the ICP Ocular Surface Analyzer (OSA). Schirmer’s I test (SIT), the fluorescein tear break-up time test (TFBUT), OSDI and SPEED questionnaires, and percentage of glycosylated hemoglobin (HbA1c) were also tested.ResultsThe T1DM group showed higher limbal and bulbar redness (p = 0.010) and lower LLT (p < 0.001), TMH (p < 0.001), FNIBUT (p < 0.001), MNIBUT (p < 0.001), SIT (p = 0.001), and TFBUT (p < 0.001) than the control group. A higher percentage of MGL was found in the T1DM group in the upper (p = 0.097) and lower (p < 0.001) eyelids. No significant differences were found in dry eye symptoms across the OSDI and SPEED questionnaires between the two groups.ConclusionPatients with T1DM without signs of retinopathy showed involvement of the mucoaqueous and lipid layers of the tear film, as well as a higher percentage of MGL, using a noninvasive analyzer. Dry eye disease in people with T1DM cannot be ruled out by anamnesis and subjective symptom questionnaires alone; therefore, these patients should undergo regular anterior pole examinations.

Dry eye disease and tear film assessment through a novel non-invasive ocular surface analyzer: The OSA protocol.

We describe the role of OSA as a new instrument in the study of dry eye, and we recommend a protocol for conducting the tests as well as describe the advantages and disadvantages compared with other instruments. A comparison with other ocular surface devices (Tearscope Plus, Keratograph 5M, anterior-segment ocular coherence tomography, Easy Tear View-Plus, LipiView, IDRA, and LacryDiag) were presented due to manual or automatic procedure and objective or subjective measurements. The purpose of this study was to describe the OSA as new non-invasive dry eye disease diagnostic device. The OSA is a device that can provide accurate, non-invasive and easy-to-use parameters to specifically interpret distinct functions of the tear film. This OSA protocol proposed a lesser to higher non-invasive ocular surface dry eye disease tear film diagnostic methodology. A complete and exhaustive OSA and OSA Plus examination protocol was presented within the subjective questionnaire (Dry Eye Questionnaire 5, DEQ5), limbal and bulbar redness classification (within the Efron grade Scale, interferometry lipid layer thickness (LLT) (according to Guillon pattern), tear meniscus height (manually or automatic), first and mean non-invasive break up time (objective and automatic) and meibomian gland (MG) dysfunction grade and percentage (objective and automatic). The OSA and OSA Plus devices are novel and relevant dry eye disease diagnostic tools; however, the automatization and objectivity of the measurements can be increased in future software or device updates. The new non-invasive devices supposed represent a renewal in the dry eye disease diagnosis and introduce a tendency to replace the classic invasive techniques that supposed less reliability and reproducibility.

Lipid, Aqueous and Mucin Tear Film Layer Stability and Permanence within 0.15% Liposome Crosslinked Hyaluronic Acid versus 0.15% Non-Crosslinked Hyaluronic Acid Measured with a Novel Non-Invasive Ocular Surface Analyzer.

To evaluate the stability and permanence of the liquid film created after the instillation of 0.15% crosslinked hyaluronic acid with liposomes and crocin versus the effect of 0.15% standard hyaluronic acid, a prospective, longitudinal, single-blind, single-center study was conducted in symptomatic populations with a novel noninvasive ocular surface analyzer. Limbal and bulbar redness classification, lipid layer thickness, tear meniscus height, and first and mean noninvasive break-up time (FNIBUT and MNIBUT) were performed before and 30 and 45 min after liposome-crosslinked hyaluronic acid (LCHA) and standard hyaluronic acid (HA) eye drop instillations. LCHA had a higher lipid layer thickness than HA (grades 2.00 ± 0.83 and 1.17 ± 0.63 on the Guillon pattern, respectively). LCHA achieved a better tear meniscus height than HA (0.23 ± 0.02 and 0.21 ± 0.02 mm, respectively). LCHA improved FNIBUT and MNIBUT more than HA (for FNIBUT, 6.30 ± 0.94 and 4.77 ± 0.89 s, respectively. For MNIBUT, 17.23 ± 5.11 and 12.41 ± 4.18 s, respectively). Crosslinking hyaluronic acid with liposomes and crocin significantly increases the permanence and stability of the lipid, aqueous, and mucin tear film layers. In a short-term period, liposome and crosslinked hyaluronic acid achieved better first and mean noninvasive break-up times than standard hyaluronic acid.

Noninvasive ocular surface analyzer as an adjunct in diagnosis and estimating prevalence of meibomian gland dysfunction: Hospital-based comparative study.

Purpose:To assess the role of noninvasive ocular surface analyzer (OSA) in workup of meibomian gland dysfunction (MGD) and to estimate hospital-based prevalence of MGD using this objective device.Methods:The study recruited 113 consecutive participants attending the ophthalmology outpatient department of a tertiary care hospital. All participants were administered a symptom questionnaire. Participants underwent a comprehensive ocular examination, including slit-lamp biomicroscopy and meibomian gland expression. Lipid layer thickness (LLT), noninvasive tear breakup time (NIBUT), tear meniscus height (TMH), and meibomian gland loss (MGL) were assessed using OSA. The presence of either or both reduced/absent meibum secretion and cloudy to toothpaste-like secretion was diagnosed as MGD.Results:Prevalence of total MGD was 57.52% (95% confidence interval [95% CI]: 48.3%–66.8%) and that of symptomatic MGD was 42.5% (95% CI: 33.2%–51.7%). Prevalence of total and symptomatic MGD was highest in those aged ≥50 years (P < 0.001 and P = 0.004, respectively). Computer vision syndrome increased the odds of symptomatic MGD (odds ratio [OR]: 4.3). NIBUT and MGL significantly differed in MGD and non-MGD groups (P = 0.023 and P < 0.001, respectively). LLT significantly differed between asymptomatic and symptomatic cases (P = 0.033). MGL >25% increased the odds of having MGD (OR: 19.1). Significant negative correlations were observed between MGL and NIBUT (P = 0.04) and between MGL and LLT (P = 0.02). MGL demonstrated the highest diagnostic accuracy for MGD (AUC = 0.827, sensitivity = 75.4%, specificity = 85.4%, cut-off value: ≥26%).Conclusion:MGD is a common disorder in adults attending the ophthalmology outpatient services of a tertiary eye care hospital. Incorporating noninvasive OSA in clinical practice can aid in rapid and reliable measurements of MGD-related parameters.

Accuracy of a New Noninvasive Automatic Ocular Surface Analyzer for the Diagnosis of Dry Eye Disease-Two-Gate Design Using Healthy Controls.

The purpose of this study was to assess the diagnostic performance of measurements from a new noninvasive, automated ocular surface analyzer (IDRA) in the diagnosis of dry eye disease (DED). We prospectively identified patients with and without DED using best practice methods. Subsequently, all participants underwent IDRA analysis, consisting of 5 components: noninvasive tear film break-up time, tear meniscus height, lipid layer interferometry, eye blink quality, and infrared meibography. The manufacturer provides cutoff values for a pathologic result for each of these components. Using a stepwise augmentation multivariate logistic regression model, we identified the components with the strongest association for the presence of DED. For the 3 components with the strongest association (interferometry, tear meniscus, and infrared meibography), we calculated the probability of DED. We enrolled 40 patients (80 eyes) with DED (mean age 60.5 years; women 78.3%) and 35 healthy subjects (70 eyes, mean age 31.1 years; women 21.7%). The IDRA had an area under the curve of 0.868 (95% confidence interval: 0.809-0.927) to detect DED. A normal (≥80) interferometry combined with a normal (>0.22) tear meniscus and a normal (≤40) infrared meibography was associated with an estimated probability of 18% for the presence of DED, whereas the estimated probability of DED was as high as 96% when all 3 findings were pathologic. The results of IDRA showed a positive concordance with routine clinical diagnostic tests. The new analyzer is an easy-to-access diagnostic tool to rule out the presence of DED in the extramural setting and to guide a timely DED treatment.

Associations between Biomarkers of Metal Exposure and Dry Eye Metrics in Shipyard Welders: A Cross-Sectional Study.

Shipyard welders are often exposed to welding metal fumes. Ocular surfaces are continually exposed to environmental hazards. However, limited information on the associations between metal exposure and dry eye metrics in occupational settings is available. This study employed a cross-sectional design that involved the participation of 59 welders and 25 administrative staff in a shipyard in northern Taiwan from September 2020 to October 2020. The participants’ individual information, laboratory data, exposure to particulate matter < 2.5 μm, urinary, and toenail metal concentrations were collected. Dry eye metrics were evaluated using standardized questionnaires and a noninvasive ocular surface analyzer. Urinary V and Cr and toenail V, Cr, Mn, Fe, Ni, Zn, As, and Cd and Pb were significantly higher in the exposed group than in the control group. After adjustment for confounding factors, dry eye metrics were associated with urinary Cd (β = 0.407; p = 0.007) and toenail Pb (β = 0.482; p = 0.002). The participants with higher urinary Cd exhibited higher odds ratios for elevated dry eye metrics. Our study revealed that exposure to welding procedures increases several metal biomarkers. In addition, urinary Cd, and toenail Pb might be related to dry eye disease in shipyard welders.

Possibilities of Non-Invasive Analyzer of Blood Formula in Rehabilitation of Patients with Post-Covid Syndrome

Aim: Formation of goals of the rehabilitation process of patients with the post-covid syndrome in accordance with the needs of the patient, and the results of sufficient diagnosis. Materials and Methods: A total of 132 people were examined. In 48 patients diagnosed with COVID-19 coronavirus (PCR test). Diagnosis of study participants occurred after 8-12 weeks of the acute period. None of the patients after the acute period of the disease underwent a course of rehabilitation treatment. The diagnosis was performed using a non-invasive blood formula analyzer AMP. Before the measurement, the respiratory rate, heart rate, and the patient`s weight, age, and sex were recorded. Statistical data processing was performed using the statistical package MedStat. Results: The values of such indicators as the Tiffno test, dopamine-β-hydrolase, skeletal muscle circulation, the complex factor regulating cell mitosis were out of the norm in the group of participants who suffered from covid-19, but compared with the control group, was not found a statistically significant difference between the above indicators (p&gt;0.05). Such values are a consequence of the disease and are the basis for describing the main long-term consequences that correspond to the post-covid syndrome. Conclusions: The goals of the rehabilitation process of patients with the post-covid syndrome should be formed in accordance with the positions of evidence-based medicine. The non-invasive blood formula analyzer allows determining the direction of rehabilitation treatment taking into account concomitant chronic diseases and taking into account the patient`s ability to carry out the correction of rehabilitation programs in real-time.

Association between body mass index, bone bending strength, and BMD in young sedentary women.

The purpose of this study was to determine whether body mass index (BMI) is a predictor of tibial or ulnar bending strength and bone mineral density (BMD) in sedentary women. Sedentary women (n = 34), age 19-27years, with low BMI (LBMI < 18.5kg/m2, n = 16), and normal or high BMI (NHBMI between 18.5 and 29.9kg/m2, n = 18) participated as study subjects. Study outcomes included tibial and ulnar bending strength (EI in Nm2) using a non-invasive mechanical response tissue analyzer (MRTA); BMD and bone mineral content (BMC) of the whole body (WB), femoral neck (FN), total hip (TH), lumbar spine 1-4 (LS1-4), and ulna; and bone turnover biomarkers. The LBMI group have lower (p < 0.01) body weight [group difference (Δ) = 32.0%], lean mass (LM) (Δ = 23.1%), fat mass (FM) (Δ = 77.2%), and tibial bending strength (Δ = 22.0%), compared to the NHBMI. The LBMI group also have lower (all p < 0.025) BMC in WB (Δ = 19.9%), FN (Δ = 20.1%) and TH (Δ = 19.0%), compared to the NHMBI, not in BMD results. Multivariate regression analysis shows that significant predictors of tibial bending strength are tibia length (adjusted R2 = .341), age (adjusted R2 = .489), ulna BMD (adjusted R2 = .536), and LM (adjusted R2 = .580). BMI was positively correlated with tibial EI (p < 0.05), height, weight, FM, LM, body fat% (all p < 0.01), and BMD of WB, FN, TH, and LS 1-4 (p < 0.05 or < 0.01). Our results show that BMI is not a significant predictor of tibial or ulnar bending strength in young sedentary women.

Application of Non-invasive Ocular Surface Analyzer in the Diagnosis of Dry Eye in Young People

Application of Non-invasive Ocular Surface Analyzer in the Diagnosis of Dry Eye in Young People

СПЕЦИАЛИЗИРОВАННЫЕ ВОЗРАСТНЫЕ И КВАЛИФИКАЦИОННЫЕ ХАРАКТЕРИСТИКИ ЭФФЕКТИВНОЙ АДАПТАЦИИ, ОТБОР ПО ПЕРСПЕКТИВНОСТИ И В СБОРНЫЕ КОМАНДЫ В СИСТЕМЕ ПОДГОТОВКИ СПОРТИВНОГО РЕЗЕРВА

Aim. The study aims to substantiate health monitoring, implement the effects of stress and adaptation, identify selection criteria and establish an integral rating indicator (IRI) in sports reserve training. Materials and methods. Representatives of cross-country skiing, swimming, middle-distance running, steeplechase, speed skating, wrestling, kickboxing, diving, orienteering, ice hockey were examined. The age of athletes varied from 18 to 22 years, their sports experience was 6–8 years. Sports skills level included the first adult category, Candidate for Master of Sport, Master of Sport, International Class Master of Sport. The following equipment was used in the study: Oxycon Pro Mobile, Schiller, Digi-Lite (Rimed), non-invasive AMP analyzer, MBN force platform, 3D scanner, polydynamometer, MARG 10-01 (Mikrolux). Data processing was performed with the methods of mathematical statistics. Results. Polyfunctional, metabolic, immunological features of resistance and special endurance were established. The criteria indicating successful sports performance, evaluative activity, connective tissue stability, neuroplasticity and adaptation were developed. Conclusion. The informative coefficients of statokinetic stability and resistance to hypoxia was obtained, as well as the integral rating indicator of successful competitive performance. An analysis of effective adaptation, fitness variability, normal limits, stable and premorbid health states, overtraining and overwork is proposed.

Fatty liver is an independent risk factor for gallbladder polyps.

BACKGROUNDGallbladder polyps (GBPs) are known to be associated with obesity and metabolic diseases. However, to date, the relationship between GBPs and abnormal body fat distribution, such as fatty liver, visceral obesity, or sarcopenia, has not yet been established.AIMTo evaluate whether GBPs are associated with fatty liver, visceral obesity, or sarcopenia.METHODSWe retrospectively reviewed the medical records of subjects who underwent various laboratory tests, body composition measurement with a non-invasive body composition analyzer, and abdominal ultrasonography during health checkups. A total of 1405 subjects with GBPs were compared with 2810 age- and sex-matched controls.RESULTSThe mean age of the subjects was 46.8 ± 11.7 years, and 63.8% were male. According to multiple logistic regression analysis, the presence of fatty liver [odds ratio (OR) 1.413; 95% confidence interval (CI) 1.218-1.638; P < 0.001] was an independent risk factor for GBP, together with low levels of alanine aminotransferase (OR 0.993; 95%CI 0.989-0.996; P < 0.001). Additionally, fatty liver showed both independent (OR 1.629; 95%CI, 1.335-1.988; P < 0.001) and dose-dependent (moderate to severe fatty liver; OR 2.137; 95%CI, 1.662-2.749; P < 0.001) relationship with large GBPs (≥ 5 mm). The presence of sarcopenia and high visceral fat area were not significantly associated with GBPs.CONCLUSIONFatty liver was found to be closely associated with GBPs irrespective of sarcopenia and visceral obesity.

Взаимосвязь между уровнем билирубина, определенным неинвазивным портативным автоматическим анализатором "Билитест АГФ-02", и концентрацией общего билирубина в сыворотке крови, определенной стандартным биохимическим методом, у доношенных новорожденных и поздних недоношенных детей

Взаимосвязь между уровнем билирубина, определенным неинвазивным портативным автоматическим анализатором "Билитест АГФ-02", и концентрацией общего билирубина в сыворотке крови, определенной стандартным биохимическим методом, у доношенных новорожденных и поздних недоношенных детей

Diagnostic possibilities for autoimmune thyroiditis using non-invasive determination of intrathyroid iodine concentration in children

Sixty-seven children (55 girls and 12 boys) aged 5-16 years were examined. Autoimmune thyroiditis (AT) was diagnosed in 28 and diffuse nontoxic goiter (DNG) in 39. The diseases were diagnosed on the basis of case history, results of examination and palpation of the thyroid, ultrasonic findings, presence of antibodies to thyroglobulin (in AT) or their absence (in DNG), and the microsomal fraction detected by enzyme immunoassay using Boehringer Mannheim kits. AT diagnosis was confirmed cytomorphologically in all patients. Intrathyroid stable iodine (ISI) was measured by a Russian noninvasive x-ray fluorescent analyzer. ISI concentration was notably decreased in children with autoimmune thyroiditis confirmed by cytomorphological methods: below the threshold level of the method in 46%) cases and 120±10 mcg/g in 54%). This confirms a high informative value of the proposed method in this disease. Measurements of ISI in children with enlarged thyroid helps differentiate the hypertrophic form of AT from DNG: ISI concentration under 200 mcg/g is characteristic of AT, while in DNG the concentration of ISI in Moscow children is 500±40 mcg/g (M±m).