scholarly journals Effect of Ropivacaine-Loaded Magnetic Nanoparticles on Ankle Nerve Block in Rats

2021 ◽  
Vol 2021 ◽  
pp. 1-6
Author(s):  
Huanlin Liu ◽  
Ri Zhang ◽  
Guangying Liang
Keyword(s):  
Magnetic Nanoparticles ◽  
Nerve Block ◽  
Nerve Conduction ◽  
Control Group ◽  
Blank Group ◽  
Pain Thresholds ◽  
Withdrawal Threshold ◽  
Intergroup Comparison ◽  
Mechanical Pain Thresholds ◽  
Evident Difference

Aim. Our study is to determine the influence of ropivacaine-loaded magnetic nanoparticles (MNP/Rop) on ankle nerve block in rats. Materials and Methods. MNP/Rop was prepared and then injected intravenously into rats to evaluate its anesthetic effect on rat limbs. Mechanical pain thresholds paw withdrawal threshold (PWT) and paw withdrawal thermal latency (PWL) were employed for the assessment of ankle nerve block in rats. Results. PWT increased from T1 to T4 in each group ( P < 0.05 ). The intergroup comparison determined no distinct difference in the PWT value among the three series at T1 ( P > 0.05 ); however, PWT values at T2-T4 were higher in nerve block control group (NBCG) and MNP/Rop group than in blank group (BG), and they remained slightly higher in MNP/Rop group than in NBCG. The intragroup comparison revealed that from T1 to T4, PWL in each group showed a rising trend. The PWL at T1 showed no evident difference among the three series ( P > 0.05 ); however, PWL values at T2-T4 were higher in NBCG and MNP/Rop group than in BG, and they remained slightly higher in MNP/Rop group than in NBCG. In MNP/Rop group, both PWT and PWL increased with the increase of Fe3O4 load in MNP/Rop ( P < 0.05 ), while PWT and PWL remained unchanged when the load was 2.189%; moreover, PWT and PWL elevated as Rop concentration increased in MNP/Rop ( P < 0.05 ), while they kept unaltered under 40 μL 1% Rop. Conclusion. Intravenous injection of MNP/Rop into rats and inhalation of MNP into the ankle joint can effectively block ankle nerve conduction in rats.

Comparison of the Effects of Fenugreek Vaginal Cream and Ultra Low- Dose Estrogen on Atrophic Vaginitis

2020 ◽  
Vol 17 (9) ◽  
pp. 815-822
Author(s):  
Maryam Safary ◽  
Sevil Hakimi ◽  
Noushin Mobaraki-Asl ◽  
Paria Amiri ◽  
Habib Tvassoli ◽  
...  
Keyword(s):  
Postmenopausal Women ◽  
Low Dose ◽  
Intervention Group ◽  
Clinical Signs ◽  
Control Group ◽  
Conjugated Estrogens ◽  
Atrophic Vaginitis ◽  
Vaginal Cream ◽  
Intergroup Comparison ◽  
Significant Difference

Introduction: Atrophic vaginitis is a common problem in postmenopausal women and results from decreased levels of blood estrogen. It is associated with symptoms of itching, burning, dyspareunia, and postmenopausal bleeding. The present study evaluated the effects of fenugreek extract on atrophic vaginitis. Materials and Methods: This randomized controlled clinical trial was performed on 60 postmenopausal women in Ardabil, Iran, in 2018. The participants were selected using block randomization with the allocation ratio 1:1. Those in the intervention group received 0.5g (the applicator filled to the half-full mark) fenugreek vaginal cream 5% twice a week for 12 weeks. The control group received conjugated estrogens vaginal cream at the dose of 0.625 mg (the applicator filled to the half-full mark) containing 0.3 mg of conjugated estrogens. Atrophic vaginitis was evaluated before and after the treatment through clinical examination, clinical signs, and measurement of Vaginal Maturation Index (VMI). Findings: After the 12-week intervention and modification of the baseline score, the mean (standard error) score for atrophic vaginitis signs was 3.100 (1.43-4.75). This difference was statistically significant in intragroup comparison and in favor of the control group in intergroup comparison (p=0.001). VMI was less than 49% in 86.7% and 46.7% of the participants in the intervention and control groups, respectively. This was a significant difference in favor of the control group (p=0.001). Conclusion: The results of this study showed that total fenugreek extract could be effective in treating signs of atrophic vaginitis, but it was not as effective as ultra-low-dose estrogen.

scholarly journals Ultrasound-guided superficial cervical plexus block for analgesia in patients undergoing craniotomy via suboccipital retrosigmoid approach: study protocol of a randomised controlled trial

BMJ Open ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. e034003
Author(s):  
Kun Peng ◽  
Min Zeng ◽  
Jia Dong ◽  
Xiang Yan ◽  
Dexiang Wang ◽  
...  
Keyword(s):  
Nerve Block ◽  
Rating Scale ◽  
Numerical Rating Scale ◽  
Controlled Trial ◽  
Control Group ◽  
Cervical Plexus ◽  
Ethics Review ◽  
Superficial Cervical Plexus Block ◽  
Cervical Plexus Block ◽  
Plexus Block

IntroductionScalp nerve block has been proven to be an alternative choice to opioids in multimodal analgesia. However, for the infratentorial space-occupying craniotomy, especially the suboccipital retrosigmoid craniotomy, scalp nerve block is insufficient.Methods and analysisThe study is a prospective, single-centre, randomised, paralleled-group controlled trial. Patients scheduled to receive elective suboccipital retrosigmoid craniotomy will be randomly assigned to the superficial cervical plexus block group or the control group. After anaesthesia induction, superficial cervical plexus nerve block will be performed under the guidance of ultrasound. The primary outcome is the cumulative consumption of sufentanil by the patient-controlled intravenous analgesia pump within 24 hours after surgery. Secondary outcomes include the cumulative consumption of sufentanil at other four time points and numerical rating scale pain severity score.Ethics and disseminationThe protocol (version number: 2.0, 10 April 2019) has been approved by the Ethics Review Committee of China Registered Clinical Trials (Ethics Review No. ChiECRCT-20190047). The findings of this study will be disseminated in peer-reviewed journals and at scientific conferences.Trial registration numberNCT04036812

Effect of B-ultrasound-guided nerve block on nerve block on analgesia and sedation in patients with acute cholecystitis undergoing puncture and drainage

2021 ◽  
Vol 7 (5) ◽  
pp. 3022-3028
Author(s):  
Fei Guo ◽  
Yongjun Wang ◽  
Shenghui Liu ◽  
Junrong Cao
Keyword(s):  
Oxidative Stress ◽  
Heart Rate ◽  
Acute Cholecystitis ◽  
Nerve Block ◽  
Sedation Score ◽  
The Body ◽  
Control Group ◽  
Observation Group ◽  
Ultrasound Guided ◽  
Total Antioxidant

To investigate the effect of B-ultrasound-guided nerve block on analgesia and sedation in patients with acute cholecystitis undergoing puncture and drainage. Methods 96 patients with acute cholecystitis who underwent puncture and drainage from May 2018 to November 2020 were randomly divided into control group and observation group by random number table method, with 48 cases in each group. The patients in the control group were anesthetized by local infiltration. The patients in the observation group were anesthetized by B-ultrasound-guided nerve block. Heart rate, blood pressure, analgesia score, sedation score, and oxidative stress level were compared between the two groups. Results At the time of puncture (T2), heart rate (HR) and mean arterial pressure (MAP) in the two groups were significantly lower than those before operation (T1) (P<0.05); at the end of operation (T3), HR and MAP in the control group were significantly higher than those at T1 (P<0.05); at T2, HR and MAP in the observation group were significantly higher than those in the control group (P<0.05); at T3, HR and MAP in the observation group were significantly lower than those in the control group (P<0.05). AtT2 and T3, Ramsay sedation score in both groups was significantly lower than that at T1 (P<0.05), while Ramsay score in the observation group was significantly higher than that in control group (P<0.05); atT2 and T3, visual analog scale (VAS) pain score in both groups was significantly higher than that at T1 (P<0.05), while VAS score in the observation group was significantly lower than that in the control group (P<0.05). After operation, the levels of serum malondialdehyde (MDA) and superoxide dismutase (SOD) in the two groups were significantly higher than those before operation (P<0.05), and the levels of serum total antioxidant capacity (T-AOC) were significantly lower than those before operation (P<0.05); after operation, the levels of serum SOD and T-AOC in the observation group were significantly higher than those in the control group (P<0.05), and the levels of MDA in the observation group were significantly lower than those in the control group (P>0.05). Conclusion B-ultrasound-guided nerve block anesthesia can maintain the stable hemodynamic index of patients with acute cholecystitis undergoing puncture and drainage therapy, improve the analgesic and sedative effect and reduce the oxidative stress response of the body.

A randomized controlled clinical trial to evaluate safety and efficacy of a Unani formulation in the management of Kalaf (Melasma)

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Ifra Abdul Qaiyyum ◽  
Mohammad Nawab ◽  
Munawwar Husain Kazmi
Keyword(s):  
Quality Of Life ◽  
Test Group ◽  
Control Group ◽  
Safety And Efficacy ◽  
Randomized Controlled ◽  
End Point ◽  
Intergroup Comparison ◽  
And Control ◽  
Change In Mean

Abstract Objectives Kalaf (Melasma) is an acquired facial hypermelanism. It has direct impact on patient’s quality of life and leads to development of various personality disorders. Lack of effective treatment and recurrences have drawn the attention of researcher to find alternative treatment. This study aimed to evaluate safety and efficacy of a topical Unani formulation in the management of melasma. Methods We conducted a prospective randomized controlled clinical study on the participants diagnosed with melasma. The participants (n=72) randomized into test (n=36) and control (n=36) groups. Sixty participants (n=30 in each group) completed the duration of therapy. The participants of the test group were treated with a classical Unani formulation and control group with hydroquinone 4%. The primary end point was change in mean MASI score and secondary end point was improvement in quality of life after eight weeks of treatment. Results The Unani formulation reduced 40.5% mean MASI score (17.31 ± 9.58 to 10.28 ± 5.92) in comparison to 32% reduction in mean MASI score (20.58 ± 9.49 to 13.92 ± 7.38) in the control group after eight weeks of treatment. When comparing with baseline the difference in MASI score was found statistically significant in both groups (p<0.05). On intergroup comparison, the change in MASI score between both groups was not statistically significant (p>0.05). In addition, MQOL and DQLI also improved significantly in both groups. Conclusions This study concluded that the Unani formulation and the control drug were equally effective and safer in the management of melasma.

Upregulation of MicroRNA-199 (miR-199) Prompts the Apoptosis of K562 Cell in the Model of Mice with Leukemia

2021 ◽  
Vol 11 (7) ◽  
pp. 1383-1387
Author(s):  
Jijun Hu ◽  
Zongshen Rao ◽  
Min Luo ◽  
Xiangyou Li
Keyword(s):  
Therapeutic Target ◽  
K562 Cell ◽  
Cell Activity ◽  
Myeloid Cells ◽  
Leukemia Cells ◽  
Control Group ◽  
Blank Control Group ◽  
Blank Group ◽  
Nude Rats

We investigated miR-199’s effect on the apoptosis of leukemia cells (K562) as so to provide reference idea for a new therapeutic target. 20 normal and healthy BALB/c nude rats were selected and equally and randomly assigned into inoculated group and blank group. The K562 cell was obtained and then divided into blank control group, miR-199 mimic group, and miR-199NC group followed by analysis of miR-199 expression, cell activity and apoptosis as well as the expression of Bax, Bcl-2 and PCNA. Inoculated group showed significantly higher proportion of leukemia cells and myeloid cells than blank group. The expression of miR-199 (3.22±0.03) in miR-199 mimic group was significantly higher than other two groups (P < 0.05) without difference between other two groups (P > 0.05). Bax expression (1.16±0.10) in miR-199 mimic group was significantly higher, whereas Bcl-2 (0.02±0.01) and PCNA (0.47±0.05) expression was significantly lower than other two groups. Upregulation of miR-199 could restrain the expression of Bcl-2 and PCNA through upregulation of Bax, indicating that miR-199 might be a new therapeutic target.

scholarly journals Does Social Exclusion Alter Sensory and Pain Thresholds in Children and Adolescents with Functional Abdominal Pain? – Results from a Preliminary Study

Pain Medicine ◽  
2018 ◽  
Vol 20 (8) ◽  
pp. 1472-1478
Author(s):  
Marco Daniel Gulewitsch ◽  
Aiste Jusyte ◽  
Katja Weimer ◽  
Michael Schönenberg
Keyword(s):  
Abdominal Pain ◽  
Social Exclusion ◽  
Experimental Studies ◽  
Control Group ◽  
Childhood And Adolescence ◽  
Sensory Threshold ◽  
Functional Abdominal Pain ◽  
Pain Thresholds ◽  
Before And After ◽  
Underlying Mechanisms

Abstract Objective Functional abdominal pain (AP) is a prevalent issue in childhood and adolescence. The contribution of psychosocial factors in the development and maintenance of this health problem is rather unclear, and experimental studies about underlying mechanisms are lacking. This study investigates whether experimentally induced social exclusion decreases sensory and pain thresholds in children suffering from AP. Subjects Twenty children/adolescents with AP and 22 healthy controls. Methods Children/adolescents participated in the Cyberball paradigm, which affects an experience of social exclusion. Thermal sensory and pain thresholds were measured before and after Cyberball. Results Children/adolescents with AP showed a divergent reaction regarding their sensory threshold after social exclusion: The control group exhibited a tendency toward a decreased sensory threshold whereas the AP group remained stable. Concerning the pain threshold, no effect of social exclusion could be identified. The increase of both thresholds (“numbing”) after Cyberball was positively correlated with symptoms of mental health issues. Conclusions This is the first study to investigate changes in sensory and pain thresholds following painful social interactions in a sample of children/adolescents with a chronic pain condition. Results suggest that AP and control children differ in their reaction of sensory thresholds, which might indicate an altered processing of social exclusion. Replication and further methodological improvements are needed.

scholarly journals The Effects of Tocotrienol-Rich Vitamin E (Tocovid) on Diabetic Neuropathy: A Phase II Randomized Controlled Trial

Nutrients ◽  
2020 ◽  
Vol 12 (5) ◽  
pp. 1522
Author(s):  
Yeek Tat Ng ◽  
Sonia Chew Wen Phang ◽  
Gerald Chen Jie Tan ◽  
En Yng Ng ◽  
Nevein Philip Botross Henien ◽  
...  
Keyword(s):  
Vitamin E ◽  
Nerve Conduction ◽  
Controlled Trial ◽  
Intervention Group ◽  
Serum Biomarkers ◽  
Control Group ◽  
Controlled Clinical Trial ◽  
Diabetic Patients ◽  
Chronic Hyperglycemia ◽  
Conduction Velocities

Chronic hyperglycemia increases oxidative stress, activates inflammatory pathways and reduces nerve growth factor (NGF) among diabetic patients, which contribute to development of diabetic peripheral neuropathy (DPN). Tocotrienol-Rich Vitamin E (Tocovid) possesses potent antioxidant and anti-inflammatory properties which are postulated to target these pathogeneses in order to ameliorate DPN. This study aims to evaluate the effects of Tocovid on nerve conduction parameters and serum biomarkers among diabetic patients. This multicenter, prospective, randomized, double-blind, placebo-controlled clinical trial was conducted on 80 eligible participants. The intervention group (n = 39) was randomly allocated to receive 200 mg of Tocovid twice a day, and the control group (n = 41) received placebo twice a day. At the end of eight weeks, the nerve conduction parameters, as assessed by nerve conduction study, as well as serum biomarkers (NGF, malondialdehyde, vascular cell adhesion molecule 1, tumor necrosis factor receptor 1 and thromboxane B2) were compared between the two groups. Compared to placebo, Tocovid significantly improves the nerve conduction velocities of all nerves (+1.25 m/s, interquartile range [IQR] 3.35, p < 0.001, median nerve; +1.60 m/s, IQR 1.80, p < 0.001, sural nerve; +0.75 m/s, IQR 2.25, p < 0.001, tibial nerve). Meanwhile, the levels of serum NGF were significantly higher in the Tocovid group as compared to placebo at eight weeks post-intervention. Participants receiving Tocovid illustrated highly significant improvement in terms of nerve conduction velocities for all nerves tested after eight weeks of supplementation. In addition, Tocovid supplementation elevated the levels of serum NGF, in which its increase is postulated to reflect enhanced neuronal functions. This novel finding suggests that Tocovid could be a disease-modifying agent targeting serum NGF to improve nerve conduction velocities.

scholarly journals Effectiveness of Suprascapular Nerve Block in the Treatment of Hemiplegic Shoulder Pain: A Systematic Review and Meta-Analysis

2021 ◽  
Vol 12 ◽  
Author(s):  
Yajing Hou ◽  
Yong Wang ◽  
Xiaojing Sun ◽  
Yake Lou ◽  
Ying Yu ◽  
...  
Keyword(s):  
Systematic Review ◽  
Shoulder Pain ◽  
Nerve Block ◽  
External Rotation ◽  
Meta Analysis ◽  
Suprascapular Nerve ◽  
Cochrane Library ◽  
Control Group ◽  
Suprascapular Nerve Block ◽  
Secondary Endpoints

Purpose: We aimed to investigate the effectiveness of suprascapular nerve block (SSNB) in patients with hemiplegic shoulder pain (HSP).Background: SSNB is widely used in various shoulder pains, but whether it is effective in HSP remains unknown.Methods: PubMed, Cochrane Library, and Embase databases were searched to identify potential citations. Randomized controlled trials meeting the eligible criteria were included in our analysis. The primary endpoint was Visual Analog Scale (VAS) with a maximum value of 100 and a minimum value of 0. Secondary endpoints were passive range of motion (PROM) that pain starts, and the PROM mainly included abduction, flexion, and external rotation. In addition, the upper extremity Fugl-Meyer assessment (FMA) was also included in our secondary endpoints.Results: Eight studies with 281 patients were included in our analysis. For VAS, there was no obvious difference between SSNB group and control group regardless of the follow-up period (&lt;4 weeks or ≥4 weeks), which were −6.62 (−15.76, 2.53; p = 0.16) and 1.78 (−16.18, 19.74; p = 0.85). For shoulder function, the PROM of abduction, flexion, and external rotation was similar between groups. However, motor function indicator FMA is lower in SSNB control than that in control group, with a mean difference (and 95% CI) of −2.59 (−4.52, −0.66; p = 0.008).Conclusion: SSNB is an effective way for HSP patients.Systematic Review Registration: Registration ID: CRD42021252429.

scholarly journals Therapeutic approaches to the Rational Use of trip­le combination therapy with a fixed combination of amlodipine, indapamide and perindopril arginine (TRIPLE COMBINATION) in patients with hypertension who do not control blood pressure on conventional treatment. (Description and main results of the TRIO program)

Kardiologiia ◽  
2020 ◽  
Vol 60 (5) ◽  
pp. 62-73
Author(s):  
V. Yu. Mareev ◽  
Yu. V. Minina ◽  
Yu. L. Begrambekova ◽  
A. M. Levin
Keyword(s):  
Blood Pressure ◽  
Fixed Dose ◽  
Control Group ◽  
Triple Combination ◽  
Good Tolerability ◽  
Severe Condition ◽  
Study Results ◽  
Intergroup Comparison ◽  
Insufficient Response ◽  
Study Tactics

Aim To study tactics of outpatient physicians in choosing the treatment when the previous double antihypertensive therapy (AHT) fails and to analyze the effectivity of an amlodipine/indapamide/perindopril arginine triple combination (TC).Material and methods The program included 1252 patients with arterial hypertension (AH); the TC group consisted of 992 (79.23 %) patients (38.3 % males; age, 61.6 [55.0; 67.9]); the control group included 260 (20.77 %) patients (37.7 % males; age, 60.6 [53.3; 67.4]). The main inclusion criteria were essential AH, age 18-79 years, insufficient response to previous AHT (clinical systolic blood pressure (SBP) >140–179 mm Hg). The study duration was three months. The following parameters were evaluated: dynamics of clinical and ambulatory BP (BP self-monitoring (BPSM); frequency of achieving the first goal of <140 / 90 mm Hg and the goal of <130 / 80 mm Hg); and changes in glomerular filtration rate (GFR) and quality of life (QoL). Responses to TC were analyzed in groups with different ranges of increased baseline SBP in patients with AH and diabetes mellitus (DM)/impaired glucose tolerance (IGT), overweight or obesity, and chronic kidney disease (CKD, reduced estimated GFR (eGFR <60 ml/min/1.73 m2). Safety was evaluated based on records of adverse events (AEs).Results The TC group had a more severe condition at baseline by clinical parameters and history and had higher baseline BP, which made difficult the intergroup comparison. Nevertheless at three months, the decrease in clinical SBP was more pronounced in the TC group (from 162.1  to 126.8 mm Hg, Δ=35.7  mm Hg) than in the control group (from 157.8 to 128.4  mm Hg, Δ=29.4  mm Hg). 87.8% of patients in the TC group and 81.9 % (р=0.012) in the control group achieved the first BP goal of <140 / 90 mm Hg; 34.3% and 28.2% of patients, respectively, achieved the BP goal of <130 / 80 mm Hg (р=0.055). The more effective SBP control in the TC group was associated with a pronounced BP decrease with higher BP values at baseline, which was also confirmed by an analysis in subgroups with SBP 140–160, 160–180, and >180 mm Hg. The TC treatment was associated with a pronounced antihypertensive effect with respect of BPSM values, improved QoL, and renal function. Significant decreases in BP and achievement of BP goals by a vast majority of patients receiving TC were also observed in subgroups with DM or IGT, overweight and/or obesity, and CKD. AEs were observed during the treatment only in 8 patients (0.64 %), which confirmed good tolerability and high safety of the therapy.Conclusion The study results demonstrated a therapeutic effect of the amlodipine/indapamide/perindopril arginine fixed-dose combination (Triplixam®). This effect was evident as control of clinical BP with any baseline BP level, including different ranges of increased SBP, in AH combined with DM, IGT, obesity, and CKD, which offers advantages over a subjective choice of AHT. TC improved BPSM values, QoL indexes, provided nephroprotection, and was well tolerated.

scholarly journals The Effect of Herniarin on Spatial Working Memory, Pain Threshold, and Oxidative Stress in Ischemic Hypoperfusion Model in Rats

2021 ◽  
Vol 7 (1) ◽  
pp. 42-50
Author(s):  
Zahra Nazari Barchestani ◽  
◽  
Maryam Rafieirad ◽  
Keyword(s):  
Oxidative Stress ◽  
Pain Threshold ◽  
Male Rats ◽  
Control Group ◽  
Tail Flick ◽  
Pain Thresholds ◽  
Ischemic Group ◽  
Significant Difference ◽  
The Brain ◽  
And Oxidative Stress

Background: Ischemia causes severe neuronal damage and induces oxidative stress, memory impairment, and reduces pain threshold. Herniarin is a powerful antioxidant. Objectives: This study aimed to evaluate the effect of herniarin on memory, pain, and oxidative stress in an ischemia model in male rats. Materials & Methods: In this study, 50 male rats were divided into 5 groups of control, sham, ischemic, and two other ischemic groups, which received herniarin at doses of 150 and 300 mg/kg by gavage for 14 days. Behavioral tests were performed by shuttle box, and Y-maze and pain tests were performed by Tail-Flick test. Then, the rats’ brains were extracted to evaluate lipid peroxidation and measure the levels of thiol and Glutathione Peroxidase (GPX) in the hippocampus and striatum tissues. The results were expressed as Mean±SEM and then analyzed using suitable statistical methods of ANOVA and least significant difference post-hoc test in SPSS V. 20. Results: Herniarin significantly increased the avoidance memory, spatial memory, and pain thresholds of ischemic rats at different concentrations (P<0.001). Besides, the amount of malondialdehyde (MDA) and thiol in the ischemic group increased significantly in comparison to the control group (P<0.001). Also, in the ischemic group, GPX (P<0.001) significantly decreased. Decreased MDA (P<0.001) and thiol (P<0.001) and increased GPX levels were observed with herniarin administration (P<0.01). Conclusion: According to this study’s results, herniarin can remove free radicals and oxidant substances from the brain. Thus, it improves memory and pain thresholds in the brain hypoperfusion ischemia model.

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