The muscular branching patterns of the ulnar nerve in fetal forearms

xlomafota13 shared this article with you from Inoreader The muscular branching patterns of the ulnar nerve in fetal forearms Via radiol anat Surg Radiol Anat. 2022 Jan 23. doi: 10.1007/s00276-021-02870-y. Online ahead of print. ABSTRACT OBJECTIVE: We aimed to present our findings systematically by examining the muscular branching patterns of the ulnar nerve (UN) in the forearms of fetuses. METHODS: This study was conducted on the 52 forearms of 26 formalin-fixed fetal cadavers with gestational ages varying between 19 and 37 weeks. The anatomical dissection was performed by using stereomicroscope with × 8 m agnification. The numbers of muscular branches leaving UN and their order of leaving main nerve were noted down. The findings were classified according to the muscles they reached, and branching typing was done. RESULTS: It was found that a total of 2-6 muscular branches left UN to reach flexor carpi ulnaris (FCU) and flexor digitorum profundus (FDP). UN was classified by separating into five main types according to the number of muscular branches, and these types were classified into 16 different branching patterns according to the order of branches leaving from the main trunk and going to FCU and FDP. The pattern where two branches left UN was classified as Type I (n = 6), three branches left was classified as Type II (n = 18), four branches left was classified as Type III (n = 24), five branches left was classified as Type IV (n = 3), and six branches left was classified as Type V (n = 1). Martin-Gruber connection occurred in 17 (32.7%) fetal forearms. CONCLUSION: We believe that the information that UN can demonstrate different branching patterns on the forearm can help the surgeons to prevent complications that may develop in potential nerve injury during the selection and transfer of relevant branch. PMID:35066639 | DOI:10.1007/s00276-021-02870-y View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Transplantation of IL-1β siRNA-modified bone marrow mesenchymal stem cells ameliorates type II collagen-induced rheumatoid arthritis in rats

xlomafota13 shared this article with you from Inoreader Transplantation of IL-1β siRNA-modified bone marrow mesenchymal stem cells ameliorates type II collagen-induced rheumatoid arthritis in rats Via Experimental and therapeutic medicine Exp Ther Med. 2022 Feb;23(2):139. doi: 10.3892/etm.2021.11062. Epub 2021 Dec 14. ABSTRACT Rheumatoid arthritis (RA) is a chronic autoimmune disease that causes erosion of articular cartilage and bone and has adverse effects on both patients and livestock animals. The aim of the present study was to investigate the role of interleukin-1β (IL-1β) in the pathogenesis of RA, and to further determine whether injection of IL-1β small interfering RNA (siRNA) or transplantation of IL-1β siRNA + bone marrow mesenchymal stem cells (BMSCs) can ameliorate RA in rats. A collagen-induced arthritis (CIA) rat model was established by injecting type II collagen for 4 weeks. Next, CIA rats were randomly divided into three groups and injected or transplanted with PBS, IL-1β siRNA and IL-1β siRNA + BMSCs for another 4 weeks. The CIA rat model was successfully established, as demonstrated by the higher toe swelling value, thymus and spleen/body weigh t, immobility time and serum IL-1β concentration, as well as lower body weight, climbing time and mRNA expression of programmed death-1 (PD-1), transforming growth factor-β1 (TGF-β1) and forkhead box protein 3 (Foxp3) in the spleen, compared with control rats. Furthermore, histopathology results demonstrated that joint swelling and redness were observed in the knee joints of CIA rats. H&E results revealed that CIA rats presented erosive destruction of the bone and ulceration of the articular cartilage. In addition, in vitro results demonstrated that IL-1β expression was successfully silenced after IL-1β siRNA transfection in lipopolysaccharide-stimulated BMSCs. When compared with the results of PBS rats, both IL-1β siRNA injection and IL-1β siRNA + BMSC transplantation significantly increased the body weight, climbing time and mRNA expression of PD-1, TGF-β1 and Foxp3 in the spleen, while significantly reduced the immobility time and serum IL-1β concentration. In addition, when compared with that of IL-1β siRNA injection, IL-1β siRNA + BMSC transplantation exhibited markedly higher therapeutic efficacy against CIA. These results demonstrated that higher IL-1β contributed to the pathogenesis of CIA, and that IL-1β siRNA injection ameliorated CIA, while its combination with BMSCs exerted synergistic effects, which may be beneficial against RA. PMID:35069820 | PMC:PMC8756407 | DOI:10.3892/etm.2021.11062 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Synergistic effect of Bruton's tyrosine kinase and TNF-α in the regulation of rheumatoid arthritis and underlying mechanisms

xlomafota13 shared this article with you from Inoreader Synergistic effect of Bruton's tyrosine kinase and TNF-α in the regulation of rheumatoid arthritis and underlying mechanisms Via Experimental and therapeutic medicine Exp Ther Med. 2022 Feb;23(2):141. doi: 10.3892/etm.2021.11064. Epub 2021 Dec 14. ABSTRACT The presence of Bruton's tyrosine kinase (BTK) in macrophages has been recommended as a promising therapeutic target for rheumatoid arthritis (RA). In addition, activated macrophages in the inflamed joints of patients with RA can also produce a plethora of cytokines, such as TNF-α. The aim of the present study was to investigate the potential role of BTK and TNF-α in the regulation of RA. The results demonstrated that higher levels of BTK and TNF-α were observed in macrophages in inflamed RA joints compared with those in normal joint tissues. Subsequently, the role of BTK and TNF-α in the regulation of cellular process in inflammatory macrophages was analyzed. It was demonstrated that aberrant expression of BTK and TNF-α in inflammatory macrophages can lead to higher cell proliferation rates. Once the expression of BTK or TNF-α was restricte d by using short interfering (si)RNAs (siBTK or siTNF-α), the activity of inflammatory macrophages was significantly downregulated. Of note, when the expression of BTK and TNF-α was simultaneously decreased, the proliferation rate of inflammatory macrophages was inhibited to the greatest extent. Subsequently, the underlying mechanisms through which BTK and TNF-α can regulate RA were investigated. The results demonstrated that BTK mainly regulated the ERK/JNK pathway, while TNF-α mainly affected the inactive rhomboid protein 2/B-cell-activating factor pathway. Finally, animal experiments demonstrated that simultaneous silencing of both BTK and TNF-α can significantly alleviate the symptoms associated with RA. PMID:35069822 | PMC:PMC8756421 | DOI:10.3892/etm.2021.11064 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

MicroRNA-195-5p inhibits the progression of hemangioma via targeting SKI

xlomafota13 shared this article with you from Inoreader MicroRNA-195-5p inhibits the progression of hemangioma via targeting SKI Via Experimental and therapeutic medicine Exp Ther Med. 2022 Feb;23(2):165. doi: 10.3892/etm.2021.11088. Epub 2021 Dec 22. ABSTRACT Hemangioma (HA), which is characterized by aberrant endothelial cell proliferation in blood vessels, is a common tumor during infancy. MicroRNAs (miRNAs/miRs) collectively participate in the development of HA; however, the potential roles of miR-195-5p in HA are not completely understood. The aim of the present study was to investigate the roles of miR-195-5p in HA. In the present study, miR-195-5p was found to be downregulated in HA cells, such as the XPTS-1 human infantile hemangioma-derived endothelial cell line and the EOMA hemangioendothelioma cell line. Overexpression of miR-195-5p was shown to suppress HA cell viability, colony formation and proliferation, and induced HA cell apoptosis. Furthermore, miR-195-5p downregulated Bcl-2 expression and upregulated Bax and Bcl-2 expression levels. V-ski sarcoma viral oncogene homolog (SKI) was ident ified as a target of miR-195-5p. Co-transfection of miR-195-5p mimics and SKI 3'-untranslated region wild-type decreased HA cell luciferase activity. SKI overexpression alleviated the miR-195-5p-induced decrease in HA cell proliferation and increased HA cell apoptosis. In addition, the regulatory role of miR-195-5p on the expression of Bcl-2, Bax and poly(ADP-ribose) polymerase was reversed by SKI. Collectively, the results of the present study demonstrated that miR-195-5p suppressed HA progression and its effects were mediated via SKI. Therefore, the miR-195-5p/SKI axis may represent a novel therapeutic target for HA. PMID:35069846 | PMC:PMC8753966 | DOI:10.3892/etm.2021.11088 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Mucosal gene expression profile of stricturing Crohn's disease: A preliminary study

xlomafota13 shared this article with you from Inoreader Mucosal gene expression profile of stricturing Crohn's disease: A preliminary study Via Experimental and therapeutic medicine Exp Ther Med. 2022 Feb;23(2):149. doi: 10.3892/etm.2021.11072. Epub 2021 Dec 16. ABSTRACT Intestinal strictures are an important complication of Crohn's disease (CD), with ~40% of patients developing symptomatic obstruction within 10 years of diagnosis. However, there is a paucity of research examining the mechanisms driving the development of fibrotic strictures in CD. The present study aimed to identify the mucosal markers associated with stricturing complications by examining the differences in the gene expression profiles of two patient cohorts: Patients diagnosed with inflammatory CD (n=12) and patients with stricturing CD (n=9). For each patient, a paired sample of inflamed and uninflamed mucosa was isolated and assessed by quantitative PCR using a large panel of genes associated with inflammatory bowel disease. The presents study revealed a significantly increased level of four genes in the mucosa of patients with strictures com pared with the inflammatory pattern of the disease: Formyl-peptide receptor 1 [P=0.019; fold change (FC)=11.6], C-C chemokine receptor type 1 (P=0.035; FC=5.44), IFN-γ-inducible protein 10 (P=0.037; FC=3.8) and C-C chemokine ligand 25 (P=0.048; FC=3.56). The augmented expression of these four genes in the CD stricturing phenotype, if confirmed in larger cohorts of patients, could help elucidate the mechanisms leading to disease-associated complications. PMID:35069830 | PMC:P MC8756406 | DOI:10.3892/etm.2021.11072 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Adult female acne: Clinical and therapeutic particularities (Review)

xlomafota13 shared this article with you from Inoreader Adult female acne: Clinical and therapeutic particularities (Review) Via Experimental and therapeutic medicine Exp Ther Med. 2022 Feb;23(2):151. doi: 10.3892/etm.2021.11074. Epub 2021 Dec 16. ABSTRACT Acne is a chronic inflammatory condition affecting the pilosebaceous unit that was traditionally viewed as a disease of the adolescence. However, over the past several years, an increasing number of adult women have been reported to suffer from this condition. The prevalence of adult female acne ranges between 12 and 54%. Two clinical types can be distinguished in this population, a 'retentional' and an 'inflammatory' type, which usually tend to overlap. In terms of evolution, three main subtypes can be identified: Persistent acne, which is the most frequent subtype, late-onset acne and recurrent acne. This type of acne is mainly mild-to-moderate in severity and may be refractory to conventional treatment. The etiopathogenesis is complex and has yet to be fully elucidated. It appears to involve an interaction among genetic predisposition, hormonal factors, and chronic activation of the innate immune system overlapping with external factors, such as daily stress, Western-type diet, use of tobacco and cosmetics. The treatment may be challenging and a holistic approach is required, with special attention to the individual needs and particularities of adult women. Both topical and systemic treatments are available, with hormonal therapies being of special value in this population. The aim of the present article was to provide up-to-date, evidence-based information on the clinical presentation, etiopathogenesis and treatment of adult female acne. PMID:35069832 | PMC:PMC8753972 | DOI:10.3892/etm.2021.11074 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Lectin-type oxidized LDL receptor 1 modulates matrix metalloproteinase 2 production in peri-implantitis

xlomafota13 shared this article with you from Inoreader Lectin-type oxidized LDL receptor 1 modulates matrix metalloproteinase 2 production in peri-implantitis Via Experimental and therapeutic medicine Exp Ther Med. 2022 Feb;23(2):171. doi: 10.3892/etm.2021.11094. Epub 2021 Dec 27. ABSTRACT Peri-implantitis is a disease in which inflammatory lesions that affect the surrounding soft and hard tissues develop. Matrix metalloproteinase 2 (MMP2) is hypothesized to be involved in this destructive process. However, the regulatory mechanism of action of MMP2 in the peripheral tissues of the implant are not fully understood. To determine the expression of MMP2 in peri-implantitis, peri-implant crevicular fluid (PICF) was collected from patients with peri-implantitis. The healthy volunteers' peripheral blood human macrophages infected with Porphyromonas gingivalis (P. gingivalis) were used as a cell model to explore the regulatory mechanism of MMP2 regarding dental implants. Western blotting, reverse transcription-quantitative PCR and immunofluorescence staining were used to measure the expression of MMP2 in the present study. MM P2 expression was increased in the PICF of the patients with peri-implantitis and in human macrophages infected with P. gingivalis. Lectin-type oxidized LDL receptor 1 (LOX-1) mediated the expression of MMP2 in human macrophages upon infection of P. gingivalis, whereas dendritic cell-associated c-type lectin-1 did not appear to be involved in this regulatory process. However, JNK and ERK1/2 were involved in P. gingivalis induced MMP2 expression. The results of this study showed that MMP2 was involved in peri-implantitis. MMP2 was upregulated by LOX-1 in a JNK and ERKk1/2 signaling dependent manner in the cell model. The LOX-1/MMP2 signaling pathway may thus be a potential target for management of peri-implantitis. PMID:35069852 | PMC:PMC8764579 | DOI:10.3892/etm.2021.11094 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Effect of Src tyrosine kinase on a rat model of asthma

xlomafota13 shared this article with you from Inoreader Effect of Src tyrosine kinase on a rat model of asthma Via Experimental and therapeutic medicine Exp Ther Med. 2022 Feb;23(2):172. doi: 10.3892/etm.2021.11095. Epub 2021 Dec 27. ABSTRACT Src tyrosine kinase is a protein encoded by the Src gene. The present study aimed to determine the role of Src protein kinase in asthma using small interfering RNA (siRNA) technology. Several Src siRNAs were designed and the most effective siRNA pair was selected. A rat model of asthma was established using ovalbumin, and the rats were treated with Src siRNA, empty vector or phosphate-buffered saline (PBS). A non-asthmatic control group was also established. The rats were clinically observed and Src mRNA and protein levels were measured by reverse transcription-quantitative PCR and western blot analysis, respectively. Pathological observation of the lung tissue, counting of white blood cells (WBCs) and eosinophils (EOSs) and analysis of the concentrations of IL-5, IL-33 and IFN-γ in the bronchoalveolar lavage fluid were performed. The expression levels of Src mRNA in the control, PBS, empty vector and siRNA groups were 110±30.7x103, 253±55.4x103, 254±41.3x103 and 180±50.9x103, respectively. Histochemical analysis of the lung tissue of rats in the siRNA group exhibited a relatively complete lung structure and little damage to the alveolar cavity. Src protein expression and IL-5, IL-33 levels, WBC and EOS levels were positively correlated with Src mRNA expression, while the IFN-γ concentration was negatively correlated with Src mRNA expression. These results indicate that Src knockdown inhibits the release of tracheal inflammatory factors and significantly alleviates asthma in rats. In conclusion, the present study utilized a gene transfer technique to interfere with the expression of Src in rats, which decreased the levels of IL-5, IL-33, WBCs and EOSs and increased the level of IFN-γ; these changes effectively ameliorated the condition of the trachea in asthmatic rats. PMID:35069853 | PMC:PMC8764580 | DOI:10.3892/etm.2021.11095 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Therapeutic challenges of psoriasis in the HIV-infected patient: A case report

xlomafota13 shared this article with you from Inoreader Therapeutic challenges of psoriasis in the HIV-infected patient: A case report Via Experimental and therapeutic medicine Exp Ther Med. 2022 Feb;23(2):175. doi: 10.3892/etm.2021.11098. Epub 2021 Dec 28. ABSTRACT Psoriasis can be paradoxically associated with human immunodeficiency virus (HIV) infection, having a prevalence similar to the general population but with a more severe evolution. In the genetically predisposed patients with the CW*0602 haplotype, HIV infection can be a triggering factor and a first sign of infection, and lesions can spontaneously remit with immune reconstruction after antiretroviral therapy. Our patient is a 34 year-old male with recent HIV infection, in spite of being for over 10 years the partner of an HIV-positive patient with whom the patient has two HIV-positive children. The patient was diagnosed with psoriasis 7 years ago and was treated topically. The physical examination at HIV diagnosis was overall favorable, with skin findings compatible with disseminated vulgar psoriasis. Following antiretroviral treatment with Triumeq the patient had a favorable viral response, with complete viral suppression after 12 weeks, but the pre-existent psoriasis lesions worsened. Methotrexate (MTX) treatment followed for 12 weeks, with partial improvement of psoriatic dermatitis. This medication was continued for 1 year, but the lesions reappeared, possibly due to treatment resistance. MTX treatment for psoriasis in the HIV-infected patient was beneficial, but limited to one year, leaving biologics as possible treatment following therapy under strict monitoring for adverse effects, T-lymphocyte CD4+ and viral levels. PMID:35069856 | PMC:PMC8764576 | DOI:10.3892/etm.2021.11098 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

New strategies of diagnostic and therapeutic approach to emergencies in the evolution of patients with diabetes mellitus (Review)

xlomafota13 shared this article with you from Inoreader New strategies of diagnostic and therapeutic approach to emergencies in the evolution of patients with diabetes mellitus (Review) Via Experimental and therapeutic medicine Exp Ther Med. 2022 Feb;23(2):178. doi: 10.3892/etm.2021.11101. Epub 2021 Dec 28. ABSTRACT Diabetes mellitus, known as the most widespread disease in the world, along with four other chronic diseases, involves major expenditures and significant human resources for care, thus representing a burden on any type of health care system especially due to its rapid evolution of acute and chronic complications. For the emergency department (ED), the requirements of patients with acute complications of diabetes, determine expenses which are three times higher than those for non-diabetic patients and their hospitalizations are four times more frequent. The acute complications for which patients with diabetes most frequently require the ED are hypoglycemic, hyperosmolar, or ketoacidosis coma as well as alterations of the general condition that is typical of hypoglycemia, diabetic ketoacidosis (DKA), hyperglycemic hyperosmolar state and new-onset hy perglycemia. Hypoglycemia and the Somogyi phenomenon are the most common complications of type 1 diabetes but they can also occur in patients with type 2 diabetes who are treated with insulin through its overdose. DKA can occur in type 1 and 2 diabetes either by administering inadequate doses of insulin or due to the existence of precipitating factors such as stress, acute myocardial infarction, infections, sepsis, and/or gastrointestinal bleeding. Hyperosmolar hyperglycemic status is the most common complication in patients with type 2 diabetes and DKA. Treating the acute complications of diabetes in the ED involves, besides taking immediate measures to assess and maintain vital functions, monitoring patients, assessing blood sugar, electrolytes, urea, creatinine, and bicarbonate, and applying appropriate immediate therapeutic measures for each type of acute diabetes complication. PMID:35069859 | PMC:PMC8764581 | DOI:10.3892/etm.2021.11101 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.