A comparative study of intrapartum epidural analgesia with intramuscular tramadol on labor outcome

Background: Epidural analgesia produces analgesia in labour without affecting nervous system, allows the mother to be well oriented, fully conscious and alert throughout labour. The aim of this study is to study the effect of epidural analgesia and intramuscular (IM) tramadol in different stages of labour and compare the effect of epidural analgesia with intramuscular tramadol on progress of labour and its outcome.Methods: Continuous monitoring of the haemodynamic parameters of the mother was done using multiparameter monitors. Foetal monitoring was done using continuous cardiotocography (CTG) monitor. Primigravida in spontaneous labour were randomly divided into two groups. Group I received epidural analgesia and group II received IM tramadol.Results: Duration of Ist stage of labour in group I was 167.0±47.2 min and in group II was 214.4±50.2 min. Mean duration of III stage of labour in the present group I was 7.9 min and 7.5 min in the group II. In the present study, total duration of labour is shortened by 47 min in group I compared to group II.Conclusions: Epidural analgesia during labour is a simple and effective method for painless and safe delivery. Analgesia produced by epidural route is significantly more effective than intramuscular tramadol. Epidural analgesia has favourable effect on the progress of labour. In developing nations where availability of facilities is the main limiting factor, intramuscular tramadol which is a safe and satisfactory drug for relief of labour pain, can be considered as a suitable alternative.

Low intramuscular adipose tissue index is a protective factor of all-cause mortality in maintenance dialysis patients / 中华肾脏病杂志

Objective:To investigate the relationship between intramuscular adipose tissue index (IATI) calculated from computed tomography images at transverse process of the first lumbar and all-cause mortality in maintenance dialysis patients, and to provide a reference for improving the prognosis in these patients.Methods:It was a multicenter retrospective cohort study. The clinical data of patients who received maintenance hemodialysis or peritoneal dialysis treatment from January 1, 2017 to December 31, 2019 in 4 grade Ⅲ hospitals including Zhongda Hospital Affiliated to Southeast University, Taizhou People's Hospital Affiliated to Nanjing Medical University, Affiliated Hospital of Yangzhou University, and the Third Affiliated Hospital of Soochow University were retrospectively collected. IATI was calculated by low attenuation muscle (LAM) density/skeletal muscle density. The receiver-operating characteristic curve was used to determine the optimal cut-off value of IATI, and the patients were divided into high IATI group and low IATI group according to the optimal cut-off value. The differences of baseline clinical data and measurement parameters of the first lumbar level between the two groups were compared. The follow-up ended on December 23, 2022. The endpoint event was defined as all-cause mortality within 3 years. Kaplan-Meier survival curve and log-rank test were used to analyze the survival rates and the differences between the two groups. Multivariate Cox regression analysis models were used to analyze the association between IATI and the risk of all-cause mortality in maintenance dialysis patients. Multivariate logistic regression analysis model was used to analyze the influencing factors of high IATI.Results:A total of 478 patients were eligibly recruited in this study, with age of (53.55±13.19) years old and 319 (66.7%) males, including 365 (76.4%) hemodialysis patients and 113 (23.6%) peritoneal dialysis patients. There were 376 (78.7%) patients in low IATI (<0.42) group and 102 (21.3%) patients in high IATI (≥0.42) group. The proportion of age ≥ 60 years old ( χ2=24.746, P<0.001), proportion of diabetes mellitus ( χ2=5.570, P=0.018), fasting blood glucose ( t=-2.145, P=0.032), LAM density ( t=-3.735, P<0.001), LAM index ( t=-7.072, P<0.001), and LAM area/skeletal muscle area ratio ( Z=-9.630, P<0.001) in high IATI group were all higher than those in low IATI group, while proportion of males ( χ2=11.116, P<0.001), serum albumin ( Z=2.708, P=0.007) and skeletal muscle density ( t=12.380, P<0.001) were lower than those in low IATI group. Kaplan-Meier survival analysis showed that the 3-years overall survival rate of low IATI group was significantly higher than that in high IATI group (Log-rank χ2=19.188, P<0.001). Multivariate Cox regression analysis showed that IATI<0.42 [<0.42/≥0.42, HR(95% CI): 0.50 (0.31-0.83), P=0.007] was an independent protective factor of all-cause mortality, and age ≥60 years old [ HR (95% CI): 2.61 (1.60-4.23), P<0.001], diabetes mellitus [ HR (95% CI): 1.71 (1.06-2.78), P=0.029] and high blood neutrophil/lymphocyte ratio [ HR (95% CI): 1.04 (1.00-1.07), P=0.049] were the independent risk factors of all-cause mortality in maintenance dialysis patients. Stepwise Cox regression analysis showed that IATI<0.42 was still an independent protective factor of all-cause mortality in maintenance dialysis patients [<0.42/≥0.42, HR (95% CI): 0.45 (0.27-0.76), P=0.003]. Multivariate logistic regression analysis showed that low skeletal muscle density [ OR (95% CI): 0.84 (0.81-0.88), P<0.001] and high serum triglyceride [ OR (95% CI): 1.39 (1.07-1.82), P=0.015] were the independent influencing factors of IATI≥0.42. Conclusion:IATI<0.42 of the first lumbar level is an independent protective factor of all-cause mortality in maintenance dialysis patients. Localized myosteatosis within high-quality skeletal muscle may reduce the risk of all-cause mortality in these patients.

Diagnostic value of quantitative analysis of skeletal muscle fat on insulin resistance in type 2 diabetes mellitus / 中国糖尿病杂志

Objective To explore the correlation between skeletal muscle fat content and insulin resistance(IR)in patients with type 2 diabetes mellitus(T2DM),and to evaluate the diagnostic value of skeletal muscle fat quantitative parameters for IR.Methods During January 2018 to January 2021,150 T2DM patients as observation group(T2DM group)and 100 healthy subjects as control group(NC group)were selected.All subjects underwent magnetic resonance imaging quantitatively analyzed skeletal muscle fat content,including intermuscular fat(IMAT),adipose tissue beneath fascia(SFAT)and subcutaneous fat(SCAT).Receiver operating characteristic(ROC)curve was used to analyze the diagnostic value of skeletal muscle fat quantitative parameters for IR in T2DM patients.Results The levels of IMAT and SFAT were higher in T2DM group than those in NC group[(10.05±1.34)%vs(7.16±2.06)%,(3.64±0.54)%vs(3.40±0.75)%,P<0.05],while the level of SCAT was lower than in T2DM group than in NC group[(20.16±6.34)%vs(24.97±6.57)%,P<0.05].Pearson correlation analysis showed that IMAT and SFAT were positively correlated with HbA1c and HOMA-IR(P<0.05),while SCAT was negatively correlated with HbA1c and HOMA-IR(P<0.05).ROC curve analysis showed that the area under the curve of IMAT,SFAT,and SCAT for the diagnostic value of T2DM combined with IR were 0.716,0.667 and 0.736,with sensitivities of 75.4%,72.9%and 76.4%,and specificity of 71.4%,65.2%and 68.1%.Conclusion Skeletal muscle fat contentis associated with IR.The quantitative parameters of skeletal muscle fat have good diagnostic efficacy for T2DM complicated with IR.

Ectopic fat in muscle and poor glycemic control are negatively associated with trabecular bone score in type 2 diabetes

Abstract Introduction: Type 2 Diabetes (T2D) is associated with fractures, despite preserved Bone Mineral Density (BMD). This study aimed to evaluate the relationship between BMD and trabecular bone score (TBS) with the reallocation of fat within muscle in individuals with eutrophy, obesity, and T2D. Methods: The subjects were divided into three groups: eutrophic controls paired by age and sex with the T2D group (n = 23), controls diagnosed with obesity paired by age, sex, and body mass index with the T2D group (n = 27), and the T2D group (n = 29). BMD and body fat percentage were determined using dual-energy X-Ray absorptiometry. TBS was determined using TBS iNsight software. Intra and extramyocellular lipids in the soleus were measured using proton magnetic resonance spectroscopy. Results: TBS was lower in the T2D group than in the other two groups. Glycated hemoglobin (A1c) was negatively associated with TBS. Body fat percentage was negatively associated with TBS and Total Hip (TH) BMD. TH BMD was positively associated with intramuscular lipids. A trend of negative association was observed between intramuscular lipids and TBS. Conclusion: This study showed for the first time that the reallocation of lipids within muscle has a negative association with TBS. Moreover, these results are consistent with previous studies showing a negative association between a parameter related to insulin resistance (intramuscular lipids) and TBS.

Isolated intramuscular cysticercosis in an infant-a case report

Intramuscular cysticercosis is a rare entity and presents diagnostic dilemma due to uncommon presentation. We present a case report of an 8-month-old child with muscular cysticercosis who presented with fever and a swelling on the abdominal wall. Through thorough clinical examination, laboratory investigations, and imaging studies, the diagnosis of intramuscular cysticercosis was established. The patient received prompt treatment with anthelmintic drug, leading to successful management. This case emphasizes the importance of considering muscular cysticercosis as a differential diagnosis in infants presenting with atypical symptoms, expanding our understanding of the diverse clinical presentations of this uncommon condition in pediatric populations.

Gluteoplastia de aumento con implantes intramusculares para el mejoramiento del contorno corporal / Augmentation gluteoplasty with intramuscular implants to improve the physical measurement i:en

Introducción: La región glútea ha sido considerada una de las zonas más observadas tanto en mujeres como en hombres y constituye un ícono representativo de belleza corporal. En los últimos años se ha incrementado el deseo de las féminas de aumentar esta región anatómica con implantes. Objetivo: Determinar los resultados estéticos de la gluteoplastia de aumento con implantes intramusculares. Métodos: Se realizó un estudio prospectivo, longitudinal y descriptivo de 25 mujeres que acudieron a la consulta externa del Servicio de Cirugía Plástica del Hospital Clínico-Quirúrgico Hermanos Ameijeiras, desde agosto de 2016 hasta febrero de 2019, para solicitar el aumento de su región glútea con implantes. Resultados: En la serie predominaron el grupo etario de 31 a 40 años (36,0 %) y el fototipo de piel III (88,0 %); asimismo, solo 6 pacientes presentaron complicaciones (24,0 %), entre las cuales sobresalieron el seroma (20,8 %), la asimetría (12,5 %) y la dehiscencia de la sutura (8,3 %). Se observó un aumento significativo de la proyección glútea después de la intervención (α=0,05) y los resultados fueron buenos en la mayoría de las integrantes de la muestra (84,0 %). Conclusiones: La gluteoplastia de aumento con implantes intramusculares es un procedimiento seguro y ofrece resultados estéticos favorables.

Introduction: Gluteal region has been considered one of the most observed areas either in women as in men and constitutes a representative icon of corporal beauty. In the last years the desire of women to increase this anatomical region with implants has been increased. Objective: To determine the aesthetic results of the augmentation gluteoplasty with intramuscular implants. Methods: A prospective, longitudinal and descriptive study of 25 women that went to the Plastic Surgery Service outpatient consultation of Hermanos Ameijeiras Clinical Surgical Hospital was carried out from August, 2016 to February, 2019, to request the increase of the gluteal region with implants. Results: In the series there was a prevalence of the 31 to 40 age group (36.0%) and the skin phototype III (88.0%); also only 6 patients presented complications (24.0%), among which seroma (20.8%), asymmetry (12.5%) and anastomotic dehiscence (8.3%) were notable. A significant increase of the gluteal projection after the intervention was observed (α =0.05) and the results were good in most of the members of the sample (84.0%). Conclusions: The augmentation gluteoplasty with intramuscular implants is a safe procedure and offers favorable aesthetic results.

Intramuscular Hemangioma: A Rare Cause of Omalgia / Hemangioma intramuscular: Uma causa rara de Omalgia

Abstract Intramuscular hemangiomas (IHs) are benign soft-tissue tumors that represent less than 1% of all hemangiomas. This clinical entity is rarely considered as a differential diagnosis in cases of musculoskeletal pain. A healthy 38-year-old woman presented to our office with complaint of left omalgia, with 8 months of evolution, limiting her daily activities. She reported the appearance of tumefaction in the previous 4 months. She was medicated with analgesic and antiinflammatory drugs with no clinical improvement. The objective examination showed limitation of left shoulder abduction (0-90°). The patient underwent a magnetic resonance imaging (MRI), in which a well-circumscribed nodular formation was detected in the deltoid muscle. Then, she underwent a biopsy, which confirmed the diagnosis of hemangioma. The patient was referred for sclerotherapy. Intramuscular hemangiomas are usually observed in young patients. The gold-standard examination for diagnosis is MRI, which often forestalls the need for a biopsy. In many cases, IHs are asymptomatic and tend to involute over time. Despite the low frequency of this clinical entity, it is important to place it as a diagnostic hypothesis in cases of chronic pain of the limbs in young patients with poor therapeutic response to antiinflammatory drugs and analgesia.

Resumo Os hemangiomas intramusculares (HIs) são tumores benignos de tecidos moles que representam menos de 1% de todos os hemangiomas. Esta entidade clínica raramente é considerada como diagnóstico diferencial nos casos de dor musculoesquelética. Uma paciente do sexo feminino, de 38 anos de idade, saudável, se apresentou ao nosso consultório com queixa de omalgia esquerda, com 8 meses de evolução, que limitava suas atividades diárias. Ela relatou o aparecimento de tumefação 4 meses antes da consulta. A paciente estava medicada com analgésico e antiinflamatório sem melhoria clínica. Ao exame objetivo, ela apresentava limitação da abdução do ombro esquerdo (0-90°). A paciente foi submetida a uma ressonância nuclear magnética (RNM) na qual foi detectada uma formação nodular bem circunscrita no músculo deltoide,. Em seguida, foi realizada uma biópsia que confirmou o diagnóstico de hemangioma. A paciente foi então encaminhada para a realização de escleroterapia. Os HIs normalmente são observados em pacientes jovens. O exame padrão-ouro para o diagnóstico é a RNM, que muitas vezes torna a realização de biópsia desnecessária. Em muitos casos, os HIs são assintomáticos e tendem a involuir com o tempo. Apesar da baixa frequência desta entidade clínica, é importante colocá-la como hipótese de diagnóstico em casos de dor crônica dos membros em pacientes jovens com má resposta terapêutica a antiinflamatórios e analgesia.

Uncommon-parasitic-infection-isolated-intramuscular-cysticercosis-a-case-report

Human cysticercosis is caused by cysticercus cellulosae, larvae of a tapeworm, taenia solium. Cysticercois can involve any tissue in the body even it has maximum tendency towards neural tissue. The most common affected sites are central nervous system, subcutaneous tissue, eyes and muscles. An isolated case of intramuscular cysticercosis is a rare presentation. Here we present the case of a 35 year old female with a swelling on the posterolateral aspect of right arm and was diagnosed as myocysticercosis which was abuting to the extensor muscle that is triceps muscle on high resolution ultrasound and ct scan and it was managed by antihelminthic medications followed by surgical excision.

Comparison of pain levels developed during intramuscular injections to laterofemoral and ventrogluteal regions in children: a randomized controlled study

SUMMARY OBJECTIVE: The aim of this study was to compare the levels of pain developed during intramuscular injections to the laterofemoral and ventrogluteal regions in children. METHODS: The study population consisted of all children aged between 7 and 12 years who presented to the pediatric emergency clinic of a hospital. The sample consisted of 62 children who met the inclusion criteria and agreed to participate in the study, and the children were randomly assigned to each group (laterofemoral n=31, ventrogluteal n=31). "Buzzy" and "deep breathing" were applied to children in both groups to relieve pain during the procedure. The data were obtained using an Information Form, a visual analog scale, and the Facial Pain Scale-Revised. RESULTS: It was determined that the children in the ventrogluteal group during the intramuscular injections had lower visual analog scale and faces pain scale-revised scores immediately after the procedure compared with the vastus lateralis group, that is, they experienced less pain, and the difference between the two groups was significant (p<0.001). CONCLUSION: In children, it is recommended to choose the less painful ventrogluteal region for intramuscular injection and to inform health professionals about it.

A case of poisoning caused by intramuscular injection of esfenvalerate / 中华劳动卫生职业病杂志

Esfenvalerate is a kind of commonly used highly effective pyrethroid insecticide. It is common for people who are poisoned by contact or misuse, but rarely reported for people who are poisoned by intramuscular injection. This paper reports a case of intramuscular injection of esfenvalerate in the Department of Infection, West China Hospital of Sichuan University in November 2021. The patient was intramuscularly injected with about 20 ml of esfenvalerate, inducing the sense of swelling and tingling, degeneration and necrosis of striated muscle tissue at the injection site, also liver function damage and other manifestations. The patient was discharged from hospital after rehydration, accelerating poison metabolism, anti-infection, liver protection and local puncture.

Cloning and expression profile of ZFP36L1 gene in goat / 生物工程学报

The purpose of this study was to clone and characterize the ZFP36L1 (zinc finger protein 36-like 1) gene, clarify its expression characteristics, and elucidate its expression patterns in different tissues of goats. Samples of 15 tissues from Jianzhou big-eared goats, including heart, liver, spleen, lung and kidney were collected. Goat ZFP36L1 gene was amplified by reverse transcription-polymerase chain reaction (RT-PCR), then the gene and protein sequence were analyzed by online tools. Quantitative real-time polymerase chain reaction (qPCR) was used to detect the expression level of ZFP36L1 in intramuscular preadipocytes in different tissues and adipocytes of goat at different differentiation stages. The results showed that the length of ZFR36L1 gene was 1 224 bp, and the coding sequence (CDS) region was 1 017 bp, encoding 338 amino acids, which was a non-secretory unstable protein mainly located in nucleus and cytoplasm. Tissue expression profile showed that ZFP36L1 gene was expressed in all selected tissues. In visceral tissues, the small intestine showed the highest expression level (P < 0.01). In muscle tissue, the highest expression level was presented in longissimus dorsi muscle (P < 0.01), whereas the expression level in subcutaneous adipose tissue was significantly higher than that in other tissues (P < 0.01). The results of induced differentiation showed that the expression of this gene was up-regulated during adipogenic differentiation of intramuscular precursor adipocytes (P < 0.01). These data may help to clarify the biological function of the ZFP36L1 gene in goat.

Gene cloning and sequence analysis of the RPL29 gene and its effect on lipogenesis in goat intramuscular adipocytes / 生物工程学报

The aim of this study was to clone the goat RPL29 gene and analyze its effect on lipogenesis in intramuscular adipocytes. Using Jianzhou big-eared goats as the object, the goat RPL29 gene was cloned by reverse transcription-polymerase chain reaction (RT-PCR), the gene structure and expressed protein sequence were analyzed by bioinformatics, and the mRNA expression levels of RPL29 in various tissues and different differentiation stages of intramuscular adipocytes of goats were detected by quantitative real-time PCR (qRT-PCR). The RPL29 overexpression vector pEGFP-N1-RPL29 constructed by gene recombination was used to transfect into goat intramuscular preadipocytes and induce differentiation. Subsequently, the effect of overexpression of RPL29 on fat droplet accumulation was revealed morphologically by oil red O and Bodipy staining, and changes in the expression levels of genes related to lipid metabolism were detected by qRT-PCR. The results showed that the length of the goat RPL29 was 507 bp, including a coding sequence (CDS) region of 471 bp which encodes 156 amino acid residues. It is a positively charged and stable hydrophilic protein mainly distributed in the nucleus of cells. Tissue expression profiling showed that the expression level of this gene was much higher in subcutaneous adipose tissue and inter-abdominal adipose tissue of goats than in other tissues (P < 0.05). The temporal expression profile showed that the gene was expressed at the highest level at 84 h of differentiation in goat intramuscular adipocytes, which was highly significantly higher than that in the undifferentiated period (P < 0.01). Overexpression of RPL29 promoted lipid accumulation in intramuscular adipocytes, and the optical density values of oil red O staining were significantly increased (P < 0.05). In addition, overexpression of RPL29 was followed by a highly significant increase in ATGL and ACC gene expression (P < 0.01) and a significant increase in FASN gene expression (P < 0.05). In conclusion, the goat RPL29 may promote intra-muscular adipocyte deposition in goats by up-regulating FASN, ACC and ATGL.

Application of Press-Z-track-Turn intramuscular injection in the injection of Fluvastatin / 中国实用护理杂志

Objective:To investigate the application effect of Press-Z-track-Turn (PZT) intramuscular injection on the extravasation, local reaction, local pain after injection and patient satisfaction after Fulvestrant injection.Methods:Used a self-controlled study, 63 patients who underwent bilateral intramuscular injection of Fluvastatin in the outpatient injection room of Tianjin Medical University Cancer Hospital from August to October 2022 were conveniently selected. The observation time was two treatment cycles after inclusion in this study. Before the injection of the first treatment cycle, a coin toss was used to randomly decide to use traditional intramuscular injection and PZT intramuscular injection method for injection and record. After 28 days, another injection method was used, with a total of 126 injections per injection method. Observed the extravasation of drug solution and local reactions at the injection site within 7 days after injection using two injection methods, as well as the pain and satisfaction of patients within 7 days after injection.Results:The extravasation rate of drug solution for the PZT intramuscular injection was 1.59% (2/126), which was lower than 7.14% (9/126) for the traditional intramuscular injection, and the difference was statistically significant ( χ2=4.66, P<0.05); the incidence of mild and moderate local reactions for the PZT intramuscular injection was 3.97% (5/126) and 1.59% (2/126), respectively, lower than that for the traditional intramuscular injection 11.11% (14/126) and 5.56% (7/126), and the difference was statistically significant ( χ2=8.26, P<0.05); the pain score of the PZT intramuscular injection was (2.08 ± 0.85) points, lower than that of the traditional intramuscular injection (5.03 ± 1.06) points, and the satisfaction score of the PZT intramuscular injection was (23.68 ± 1.64) points, higher than that of the traditional intramuscular injection (20.10 ± 2.58) points. The difference was statistically significant ( t=-17.24, 9.16, both P<0.01). Conclusions:PZT intramuscular injection can effectively reduce the overflow rate, the incidence of grade 1 and 2 local reactions and the degree of pain of patients, and improve patient satisfaction, which is worthy of clinical application.

Comparison of immune responses and protective efficacy between mucosal vaccines and intramuscular vaccines / 中华微生物学和免疫学杂志

The routes of immunization largely determine the features of vaccine-induced immune responses. This paper mainly reviewed the immune responses and protective efficacy induced by mucosal immunization and intramuscular injection of vaccines against poliovirus, Salmonella typhi, influenza virus and SARS-CoV-2 and compared the differences between different immunization routes, with the goal of providing some fundamental theoretical data for the development of vaccines and vaccination strategies against infectious diseases.

Muscle architecture and intramuscular nerve distribution pattern of adult elbow muscle / 解剖学报

[Abstract] Objective To study the morphology, muscle architecture index and distribution pattern of intramuscular nerve dense area of elbow muscle, so as to provide anatomical location for poster-lateral approach of elbow joint and transplantation of elbow muscle flap. Methods Through gross anatomy, muscle architecture index and modified Sihler’s intramuscular nerve staining, 10 cases with an average age of 64. 2 years were selected. Results The elbow muscle was approximate triangle, the muscle wet weight was (6. 31±0. 85) g, the muscle length was (6. 24±0. 78) cm, the muscle fiber length was (4. 74±0. 88) cm, pennation angle(70. 60±6. 41)°and the muscle physiological cross-sectional area was (0. 41±0. 15) cm

miR-23b-3p regulates the differentiation of goat intramuscular preadipocytes by targeting the PDE4B gene / 生物工程学报

This study aimed to explore the effect of miR-23b-3p on the differentiation of goat intramuscular preadipocytes, and to confirm whether miR-23b-3p plays its roles via targeting the PDE4B gene. Based on the pre-transcriptome sequencing data obtained previously, the miR-23b-3p, which was differentially expressed in goat intramuscular adipocytes before and after differentiation, was used as an entry point. real-time quantitative-polymerase chain reaction (qPCR) was used to detect the expression pattern of miR-23b-3p during the differentiation of goat intramuscular preadipocytes. The effects of miR-23b-3p on adipose differentiation and adipose differentiation marker genes were determined at the morphological and molecular levels. The downstream target genes of miR-23b-3p were determined using bioinformatics prediction as well as dual luciferase reporter assay to clarify the targeting relationship between miR-23b-3p and the predicted target genes. The results indicated that overexpression of miR-23b-3p reduced lipid droplet accumulation in goat intramuscular adipocytes, significantly down-regulated the expression levels of adipogenic marker genes AP2, C/EBPα, FASN, and LPL (P < 0.01). In addition, the expressions of C/EBPβ, DGAT2, GLUT4 and PPARγ were significantly downregulated (P < 0.05). After interfering with the expression of miR-23b-3p, lipid droplet accumulation was increased in goat intramuscular adipocytes. The expression levels of ACC, ATGL, AP2, DGAT2, GLUT4, FASN and SREBP1 were extremely significantly up-regulated (P < 0.01), and the expression levels of C/EBPβ, LPL and PPARγ were significantly up-regulated (P < 0.05). It was predicted that PDE4B might be a target gene of miR-23b-3p. The mRNA expression level of PDE4B was significantly decreased after overexpression of miR-23b-3p (P < 0.01), and the interference with miR-23b-3p significantly increased the mRNA level of PDE4B (P < 0.05). The dual luciferase reporter assay indicated that miR-23b-3p had a targeting relationship with PDE4B gene. MiR-23b-3p regulates the differentiation of goat intramuscular preadipocytes by targeting the PDE4B gene.

Relationship between intramuscular fat content in the quadriceps muscle and clinical severity in patients with knee osteoarthritis / 中国骨伤

OBJECTIVE@#To explore relationship between intramuscular fat content of quadriceps femoris and clinical severity of knee osteoarthritis (KOA).@*METHODS@#Totally 30 KOA patients were selected from February 2021 to June 2021, including 6 males and 24 females, aged with an average of (64.20±9.19) years old, and body mass index (BMI) was (24.92±3.35) kg·m-2. Patients were divided into relative severe leg (RSL) and relative moderate leg (RML) according to severity of pain on visual analogue scale(VAS). Musculoskeletal ultrasound was used to collect muscle images of quadriceps muscles on both sides of the patient, and Image J was used to analyze echo intensity (EI) of each muscle. Both VAS and Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) were used to assess pain and function. Quadriceps muscle EI on both sides of patients was compared. Pearson correlation analysis was conducted to analyze correlation between quadriceps muscle EI value between RSL and RML, and linear regression was used to analyze relationship between each muscle EI and VAS and WOMA scores of patients.@*RESULTS@#The EI of RSL lateral vastus lateralis (VL) was 123.78±36.25 and RSL vastus medialis (VM) was 109.46±30.36 which were significantly higher than those of 108.03±31.34 and 93.32±26.04 of RML (P<0.05), but there was no statistical significance in EI values of rectus femoris (RF) on both sides (P>0.05). EI values of VL and VM on both sides were significantly correlated (P<0.05). There was a significant positive correlation between VM EI value and VAS score in RSL and RML (P<0.05). VM EI values in RSL were positively correlated with total WOMAC (P<0.05), and VM VL EI values in RML were positively correlated with total WOMAC score (P<0.05).@*CONCLUSION@#Intramuscular fat content of quadriceps is closely related to severity of clinical symptoms in KOA patients, and the most obvious one is VM. Therefore, the intramuscular fat content of quadriceps may be an objective indicator to evaluate severity of KOA patients. At the same time, reducing intramuscular fat content of the quadriceps muscle of KOA patients may be a new direction for the prevention and treatment of KOA.

Standard Operating Procedure validity on intramuscular vaccine administration in adults: a methodological study / Validación del Procedimiento Operativo Estándar sobre administración intramuscular de vacunas en adultos: estudio metodológico / Validação de Procedimento Operacional Padrão sobre administração intramuscular de vacina em adultos: estudo metodológico

ABSTRACT Objective: to validate a Standard Operating Procedure on the intramuscular vaccine administration technique in adults using high frequency vibration associated with cryotherapy. Methods: a literature review on intramuscular vaccination practice using a vibration device associated with cryotherapy. Then, a form was created to validate the instrument, detailing the items that were assessed by judges following recommendations in the literature. Judges' answers were assessed using the Content Validity Index, with items whose index was greater than or equal to 0.80 being validated. Results: twenty-five nurses participated in validity, identifying judges' opinion regarding item relevance, clarity and accuracy. Judges validated the instrument, according to the values that remained between 0.88 and 1.0. Conclusions: the instrument developed and validated is a tool capable of guaranteeing safety and standardizing immunization practice in vaccine rooms.

RESUMEN Objetivo: validar un Procedimiento Operativo Estándar sobre la técnica de administración de vacunas intramusculares en adultos mediante vibración de alta frecuencia asociada a crioterapia. Métodos: revisión de la literatura sobre la práctica de la vacunación intramuscular mediante un dispositivo de vibración asociado a la crioterapia. Luego, se elaboró un formulario para validar el instrumento, detallando los ítems que fueron evaluados por los jueces siguiendo las recomendaciones de la literatura. Las respuestas de los jueces fueron evaluadas mediante el Índice de Validez de Contenido, siendo validados los ítems cuyo índice fuera mayor o igual a 0,80. Resultados: 25 enfermeros participaron de la validación, captando la opinión de los jueces sobre la pertinencia, claridad y precisión de los ítems. Los jueces validaron el instrumento según los valores, que se mantuvieron entre 0,88 y 1,0. Conclusiones: el instrumento desarrollado y validado es una herramienta capaz de garantizar la seguridad y estandarizar la práctica de inmunización en salas de vacunas.

RESUMO Objetivo: validar um Procedimento Operacional Padrão sobre a técnica de administração de vacinas pela via intramuscular em adultos utilizando vibração em alta frequência associada à crioterapia. Métodos: revisão de literatura sobre a prática de vacinação intramuscular utilizando dispositivo de vibração associado à crioterapia. Em seguida, elaborou-se um formulário para validação do instrumento, com detalhamento dos itens que foram avaliados por juízes seguindo recomendações da literatura. As respostas dos juízes foram avaliadas pelo Índice de Validade de Conteúdo, sendo validados os itens cujo índice foi maior ou igual a 0,80. Resultados: 25 enfermeiros participaram da validação, captando o parecer dos juízes quanto à relevância, clareza e precisão dos itens. Os juízes validaram o instrumento segundo os valores, que permaneceram entre 0,88 e 1,0. Conclusões: o instrumento desenvolvido e validado é uma ferramenta capaz de garantir a segurança e padronizar a prática de imunização nas salas de vacina.

Administração de medicamentos por via intramuscular: caracterização dos vídeos brasileiros veiculados no YouTube® / Intramuscular drug administration: characterization of Brazilian videos on YouTube®

RESUMO Objetivo caracterizar os vídeos que contém a demonstração do procedimento de administração de medicamentos por via intramuscular em indivíduos adultos. Métodos estudo de corte transversal descritivo, foram selecionados 44 vídeos brasileiros disponíveis no YouTube® que abordavam o procedimento de administração de medicamentos por via intramuscular. Resultados a maioria dos vídeos selecionados é de origem pessoal (86,4%), tem como autor um técnico de Enfermagem (59,1%), adota a região dorsoglútea como local de injeção (54,5%), foi produzido em ambiente de saúde utilizando um paciente para a demonstração do procedimento (52,3%). Nenhum vídeo apresentou a completude do procedimento, sendo identificada grande frequência de erros em todas as etapas do procedimento. Observou-se uma diferença estatisticamente significante entre os testes de confiabilidade e popularidade dos vídeos (p=0,042). Conclusão os vídeos que abordam o procedimento de administração de medicamentos por via intramuscular disponíveis na plataforma YouTube® foram considerados atuais, de pouca relevância, elaborados por fontes não confiáveis, de baixa acurácia e frágil finalidade. Contribuições para a prática os vídeos disponíveis na plataforma YouTube® sobre a administração de medicamentos por via intramuscular não devem ser indicados como material educativo para a formação ou atualização profissional.

ABSTRACT Objective to characterize videos that contain a demonstration of the procedure for administering drugs intramuscularly to adults. Methods a descriptive cross-sectional study, 44 Brazilian videos available on YouTube® were selected which addressed the procedure of intramuscular drug administration. Results the majority of the videos selected are of personal origin (86.4%), were made by a Nursing technician (59.1%), used the dorsal gluteal region as the injection spot (54.5%), and were produced in a healthcare environment using a patient to demonstrate the procedure (52.3%). No video showed the completeness of the procedure, and a high frequency of errors was identified at all stages of the procedure. There was a statistically significant difference between the reliability and popularity tests of the videos (p=0.042). Conclusion the videos on intramuscular drug administration available on the YouTube® platform were considered to be up-to-date, of little relevance, produced by unreliable sources, of low accuracy, and with a weak purpose. Contributions to practice the videos available on the YouTube® platform on intramuscular drug administration should not be used as educational material for professional training or updating.

Production and validation of an educational video on the use of the Z-Track Technique / Preparación y validación de un vídeo educativo sobre el uso de la Técnica Z / Elaboração e validação de vídeo educativo sobre a utilização da Técnica em Z

ABSTRACT Objective: to create and validate an educational video on intramuscular drug administration using the Z-track technique. Methods: the Delphi Technique was used to validate the script. PhDs in Nursing and PhDs in Social Communication with experience in the production of educational videos participated in the process. After editing, the video was validated by three nursing professors and assessed by students of the undergraduate nursing program at a public university. Results: the video was validated by the examiners with 100% agreement in three rounds for script validation and in two for video validation after editing. The duration of the video was 9 minutes. Conclusion: after validation by the examiners, students assessed the video and considered it suitable for learning. We This video is expected to aid in the training of nursing professionals and the enhancement of patient care.

RESUMEN Objetivo: construir y validar un vídeo educativo sobre la administración intramuscular de fármacos, utilizando la Técnica Z. Métodos: se utilizó la técnica Delphi para validar el guion. Participaron en el proceso dos doctores en enfermería y dos doctores en comunicación social con experiencia en la producción de vídeos educativos. Tras su edición, el vídeo fue validado por tres docentes de enfermería y evaluado por estudiantes del curso de licenciatura en enfermería de una universidad pública. Resultados: el vídeo fue validado por los expertos con un 100% de acuerdo en tres rondas para la validación del guion y dos para la validación del vídeo después de la edición. La duración del vídeo fue de 9 minutos. Conclusión: tras la validación por parte de los expertos, los estudiantes evaluaron el vídeo y lo consideraron adecuado para el aprendizaje. Se espera que este vídeo pueda contribuir a la formación de los profesionales de enfermería y mejorar la asistencia a los pacientes.

RESUMO Objetivo: construir e validar um vídeo educativo sobre a administração de medicamentos por via intramuscular, com utilização da Técnica em Z. Métodos: utilizou-se a Técnica Delphi para a validação do roteiro. Participaram do processo doutores em enfermagem e doutores em comunicação social com experiência na produção de vídeos educativos. Após a edição, o vídeo foi validado por três docentes de enfermagem e avaliado por estudantes do Curso de Graduação em Enfermagem de uma universidade pública. Resultados: o vídeo foi validado pelos juízes com 100% de concordância ocorrida em três rodadas para validação do roteiro e duas para validação do vídeo após a edição. A duração do vídeo foi de 9 minutos. Conclusão: Após a validação pelos juízes, estudantes avaliaram o vídeo e o consideraram adequado para o aprendizado. Espera-se que esse vídeo possa contribuir para a formação do profissional de enfermagem e melhoria da assistência ao paciente.