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1.
Article in Chinese | WPRIM | ID: wpr-909134

ABSTRACT

Objective:To investigate the effects of modified Sijunzi Decoction on myelosuppression in moderate- and advanced-stage lung cancer patients with Qi and Yin deficiency and analyze the underlying mechanism. Methods:A total of 100 moderate- and advanced-stage lung cancer patients with Qi and Yin deficiency who received treatment in Lishui Hospital of Traditional Chinese Medicine, China were included in this study. They were randomly assigned to receive chemotherapy with paclitaxel combined with cisplatin (control group, n = 50) or treatment with modified Sijunzi Decoction based on chemotherapy with paclitaxel combined with cisplatin (observation group, n = 50). Myelosuppression, traditional Chinese medicine symptom score, cellular immune function, serum levels of granulocyte-macrophage colony-stimulating factor and granulocyte colony-stimulating factor, and the dosage of recombinant human granulocyte-colony stimulating factor. Results:After treatment, the incidence of leucopenia, thrombocytopenia, hemoglobinopenia and neutropenia in the observation group were 60% (30/50), 18% (9/50), 18% (9/50) and 62% (31/50), respectively, which were significantly lower than those in the control group [90% (45/50), 30% (15/50), 32% (16/50) and 92% (46/50), χ2 = 6.979, 7.025, 6.534, 6.134, all P < 0.001]. The complete remission rate in the observation group was significantly higher than that in the control group [30% (15/50) vs. 8% (4/50), χ2 = 9.018, P < 0.001]. The traditional Chinese medicine symptom score in the observation group was significantly lower than that in the control group ( t = 6.982, P < 0.05). CD 8+, CD 4+ and CD 3+ levels in the observation group were (25.16 ± 2.87)%, (38.76 ± 4.16)%, (48.83 ± 5.61)%, respectively, and they were (28. 89 ± 4.02)%, (34.10 ± 4.59)%, (41.12 ± 77)%, respectively in the control group. There were significant differences in CD 8+, CD 4+ and CD 3+ levels between the observation and control groups ( t = 6.392, 6.235, 5.983, all P < 0.05). The dosage of recombinant human granulocyte-colony stimulating factor in the observation group was significantly lower than that in the control group [(2 567.34 ± 308.25) μg vs. (3 917.82 ± 411.67) μg, t = 11.258, P < 0.05]. Serum levels of granulocyte-macrophage colony-stimulating factor and granulocyte colony-stimulating factor were (25.53 ± 7.86) ng/L and (278.34 ± 28.74) ng/L, which were significantly higher than those in the control group [(21.30 ± 3.12) ng/L, (204.17 ± 11.98) ng/L, t = 9.136, 8.856, both P < 0.05]. Conclusion:Modified Sijunzi Decoction for the treatment of moderate- and advanced-stage lung cancer patients with Qi and Yin deficiency can decrease the incidence of myelosuppression possibly through increasing serum levels of granulocyte-macrophage colony-stimulating factor and granulocyte colony-stimulating factor and improving the immune function.

2.
Article in Chinese | WPRIM | ID: wpr-912676

ABSTRACT

Objective:To determine the clinical effect of sequential therapy by local injection of triamcinolone acetonide and lattice CO 2laser for hypertrophic scar. Methods:A total of 80 hypertrophic scar patients, including 45 male and 35 female, in our clinic were randomly divided into test ( n=40) and control ( n=40) groups from March 2019 to May 2020. Patients aged from 18-42 years with average age 28.1. Patients in test groups were treated with triamcinolone acetonide and lattice CO 2laser sequentially. After final treatments, third-party blind evaluation, Vancouver scar scale, visual analog scale and dermatology life quality index were performed. Results:Test group acquired more satisfied result in third-party blind evaluation (82.5% vs. 52.5%, χ2=8.216, P<0.05). Vancouver scar scale, visual analog scale and dermatology life quality index were not significantly different before treatment for both groups while test group acquired better improvement after treatment ( P<0.05). Conclusions:Sequential therapy by local injection of triamcinolone acetonide and lattice CO 2laser is effective for hypertrophic scar and worths wide application in the clinic.

3.
Article in Chinese | WPRIM | ID: wpr-888215

ABSTRACT

Long non-coding RNA (lncRNA) Dnm3os plays a critical role in peritendinous fibrosis and pulmonary fibrosis, but its role in the process of cardiac fibrosis is still unclear. Therefore, we carried out study by using the myocardial fibrotic tissues obtained by thoracic aortic constriction (TAC) in an early study of our group, and the


Subject(s)
Fibroblasts , Fibrosis , Humans , Myocardium/pathology , RNA, Long Noncoding , Signal Transduction , Transforming Growth Factor beta1
4.
Journal of Clinical Hepatology ; (12): 1282-1287, 2021.
Article in Chinese | WPRIM | ID: wpr-877315

ABSTRACT

ObjectiveObjective To systematically evaluate the efficacy and safety of antiviral therapy in patients with chronic hepatitis B (CHB) in the immune-tolerant phase. MethodsPubMed, Embase, Cochrane Library, CNKI, and Wanfang Data were searched for clinical trials of antiviral therapy for CHB patients in the immune-tolerant phase published up to September 2020. Related data were extracted after quality assessment for systematic review. HBV DNA clearance rate was the primary outcome. ResultsA total of 9 studies involving 821 patients were included. Eight studies reported HBV DNA clearance rate in the treatment group, among which 6 studies had an HBV DNA clearance rate of >60%, which was significantly higher than that in the untreated patients (0%-29.1%), and the combination therapy group had a better clearance rate than the monotherapy group. However, virologic recurrence was more common in the long term. Eight studies reported HBeAg seroconversion, and only 2 studies of the treatment of children with interferon-α (IFN-α) reported a seroconversion rate of >20% in the treatment group, which was higher than that in the untreated group. HBsAg clearance was observed in 2 studies of IFN-α treatment, while HBsAg seroconversion was not observed. One study reported the risk of liver cirrhosis and hepatocellular carcinoma (HCC) and showed that antiviral therapy could reduce the risk of liver cirrhosis and HCC in patients. The incidence rate of adverse events ranged from 4.1%-13.0% in the treatment with nucleos(t)ide analogues and reached 100% in the treatment with IFN-α, and serious adverse events were rare. ConclusionThe majority of CHB patients in the immune-tolerant phase show satisfactory virologic response after antiviral therapy, but they tend to experience recurrence after drug withdrawal and have a low seroconversion rate. Antiviral therapy has good safety. Current evidence suggests that such patients can be dynamically observed if there is no clear evidence for disease progression.

5.
Article in Chinese | WPRIM | ID: wpr-879608

ABSTRACT

OBJECTIVE@#To explore the genetic basis for a girl featuring bone and tooth mineralization disorder, premature deciduous teeth, rickets and short stature.@*METHODS@#Genomic DNA was extracted and subjected to high-throughput whole exome sequencing. Suspected variants were confirmed by Sanger sequencing. Impact of potential variants was analyzed with bioinformatic software.@*RESULTS@#The child was found to carry compound heterozygous missense variants of the ALPL gene, including c.1130C>T (p.A377V), a known pathogenic mutation inherited from her father, and c.1300G>A (p.V434M) inherited from her mother, which was unreported previously and predicted to be likely pathogenic based on standards and guidelines from the American College of Medical Genetics and Genomics (PM2+PM5+PP3+PP4).@*CONCLUSION@#The compound heterozygous variants of c.1130C>T (p.Ala377Val) and c.1300G>A (p.Val434Met) of the ALPL gene probably underlay the disease in this child. Above finding has enriched the spectrum of ALPL gene variants.


Subject(s)
Alkaline Phosphatase , Child , Female , Genomics , High-Throughput Nucleotide Sequencing , Humans , Hypophosphatasia/genetics , Mutation , Whole Exome Sequencing
6.
Psychiatry Investigation ; : 1167-1174, 2020.
Article in English | WPRIM | ID: wpr-903154

ABSTRACT

Objective@#This present study aimed to investigate the relationship between working hours and anxiety/depression mood of medical staff in China during COVID-19 epidemic. @*Methods@#The cross-sectional interview study was conducted during the period between February 14th and February 29th, 2020. A total of 291 Chinese medical professionals were recruited from 4 cities and participated in the study. @*Results@#In 291 participants, 116 (40.0%) medical staff experienced anxiety and 151 (51.8%) underwent depressed mood. In male, the level of GAD-7 and PHQ-9 scores increased with the elevation of working hours per day (WHPD) (β=0.579, p=0.003 and β=0.943;p=0.001) respectively. In female, nonlinear relationship mode was demonstrated. The levels of GAD-7 and PHQ-9 scores increased with the elevation of working hours when it was above 5 hours (β=1.432; p0.05). @*Conclusion@#During the COVID-19 epidemic, we found a strong correlation between the psychological mood and WHPD. The correlation followed different modes in male and female medical workers. Enforcing an upper time limit of WHPD may help decrease the risk of pandemic-related psychological problems in medical workers.

7.
Psychiatry Investigation ; : 1167-1174, 2020.
Article in English | WPRIM | ID: wpr-895450

ABSTRACT

Objective@#This present study aimed to investigate the relationship between working hours and anxiety/depression mood of medical staff in China during COVID-19 epidemic. @*Methods@#The cross-sectional interview study was conducted during the period between February 14th and February 29th, 2020. A total of 291 Chinese medical professionals were recruited from 4 cities and participated in the study. @*Results@#In 291 participants, 116 (40.0%) medical staff experienced anxiety and 151 (51.8%) underwent depressed mood. In male, the level of GAD-7 and PHQ-9 scores increased with the elevation of working hours per day (WHPD) (β=0.579, p=0.003 and β=0.943;p=0.001) respectively. In female, nonlinear relationship mode was demonstrated. The levels of GAD-7 and PHQ-9 scores increased with the elevation of working hours when it was above 5 hours (β=1.432; p0.05). @*Conclusion@#During the COVID-19 epidemic, we found a strong correlation between the psychological mood and WHPD. The correlation followed different modes in male and female medical workers. Enforcing an upper time limit of WHPD may help decrease the risk of pandemic-related psychological problems in medical workers.

8.
Chinese Journal of Lung Cancer ; (12): 1049-1058, 2020.
Article in Chinese | WPRIM | ID: wpr-880222

ABSTRACT

BACKGROUND@#Pulmonary sclerosing pneumocytoma (PSP) is rare benign lung tumor which usually develops in middle-aged women without typical clinical and imaging findings. PSP consists of two basic cell types (surface cubic epithelial cells and round mesenchymal cells) and four histological types (hemorrhagic, sclerotic, solid and papillary). It grows slowly, but it can metastasize to distant organs. The pathology before surgery is easily misdiagnosed. This study aims to improve clinicians' understanding of PSP by discussing the clinical characteristics of the disease.@*METHODS@#This represents a retrospective study of thirty-five patients diagnosed with pulmonary sclerosing pneumocytoma by pathological examination from January 2011 to December 2019.@*RESULTS@#A total of 35 patients in this study, 12 cases were male and 23 cases were female, the average age is 51 years old. 7 cases were discovered accidentally by physical examination or routine chest computed tomography (CT), and 28 cases were found due to symptoms such as cough, sputum, hemoptysis and chest pain. The imaging changes is mainly featured with isolated or clear circular or round-like single nodule and lump in the lungs. In this group, 12 cases underwent percutaneous lung biopsy, only 7 cases were diagnosed with PSP. A total of 28 patients underwent surgery, 24 cases underwent rapid frozen pathological biopsy, only 5 cases diagnosed with PSP. Postoperative pathological examination results shows that 1 case was diagnosed with keratotic squamous cell carcinoma with partial PSP, and the rest were diagnosed with PSP. The surgical and non-surgical patients were followed up for 1 to 8 years after discharge, and the overall recovery was good. The patients were no recurrence and metastasis on chest CT review.@*CONCLUSIONS@#PSP is a clinically rare benign lung tumor, which is more common in middle-aged women. The clinical manifestations and imaging features are lack of significance. Percutaneous lung puncture pathological examination and intraoperative rapid frozen pathological sections often leads to misdiagnosis. Final diagnosis relies on postoperative pathological work-up for most cases.

9.
Article in Chinese | WPRIM | ID: wpr-799250

ABSTRACT

To review the literatures on the treatment of COPD combined with anxiety and depression treated by TCM in recent years, which conclude that to treat this kind of disease is usually by taking drugs, as well as non-drug therapy such as traditional Chinese exercises, acupuncture and massage, and music, etc, which could improve patients unhealthy emotions and quality of life. The recent clinical researches on TCM treatment has been increased, but the overall number of the research of this kind is limited, with problems such as small sample size, singular observing indicator, and requiring multi-center research. There still lacks related basic research and needs more attention.

10.
Article in Chinese | WPRIM | ID: wpr-863681

ABSTRACT

This paper reviews the clinical research literature of traditional Chinese medicine (TCM) on treating chronic obstructive pulmonary disease (COPD) in recent years. It is believed that TCM has curative effect in the treatment of acute exacerbation or remission of COPD. The treatment principle for acute stage of COPD includes phlegm, heat and dampness, and the chronic stage lung, spleen and kidney. TCM can improve the clinical symptoms and quality of life, with various treatments and less adverse reactions. However, there are some limitations such as small sample size, lack of in-depth discussion on the mechanism of trwatment, lack of standardized syndrome differentiation and outcomes evaluation standards.

11.
Article in Chinese | WPRIM | ID: wpr-863560

ABSTRACT

To review the literatures on the treatment of COPD combined with anxiety and depression treated by TCM in recent years, which conclude that to treat this kind of disease is usually by taking drugs, as well as non-drug therapy such as traditional Chinese exercises, acupuncture and massage, and music, etc, which could improve patients unhealthy emotions and quality of life. The recent clinical researches on TCM treatment has been increased, but the overall number of the research of this kind is limited, with problems such as small sample size, singular observing indicator, and requiring multi-center research. There still lacks related basic research and needs more attention.

12.
Article in Chinese | WPRIM | ID: wpr-828161

ABSTRACT

This study aimed to explore the role of miR-130a-3p in cardiomyocyte hypertrophy and its underlying mechanisms. Pressure-overload induced myocardial hypertrophy mice model was constructed by thoracic aortic constriction (TAC). , norepinephrine (NE) was used to stimulate neonatal rat cardiomyocytes (NRCMs) and H9c2 rat cardiomyocytes to induce hypertrophic phenotypes. The expression of miR-130a-3p was detected in mice hypertrophic myocardium, hypertrophic NRCMs and H9c2 cells. The mimics and inhibitors of miR-130a-3p were transfected into H9c2 cells to observe the role of miR-130a-3p on the hypertrophic phenotype change of cardiomyocytes separately. Furthermore, whether miR-130a-3p regulated hypertrophic related signaling pathways was explored. The results showed that the expression of miR-130a-3p was significantly decreased in hypertrophic myocardium, hypertrophic NRCMs and H9c2 cells. After transfection of miR-130a-3p mimics, the expression of hypertrophic marker genes, atrial natriuretic peptide (ANP), brain natriuretic peptide (BNP) and β-myosin heavy chain (β-MHC), and the cell surface area were notably down-regulated compared with the control group (mimics N.C. + NE group). But after transfection of miR-130a-3p inhibitor, the expression of ANP, BNP and β-MHC in H9c2 cells increased significantly, and the cell area increased further. By Western blot, it was found that the protein phosphorylation level of Akt and mTOR were down-regulated after over-expression of miR-130a-3p. These results suggest that miR-130a-3p mimics may alleviate the degree of cardiomyocyte hypertrophy, meanwhile its inhibitor can further aggravate cardiomyocyte hypertrophy. Over-expression of miR-130a-3p may attenuate cardiomyocytes hypertrophy by affecting the Akt pathway.


Subject(s)
Animals , Atrial Natriuretic Factor , Cardiomegaly , Mice , MicroRNAs , Genetics , Myocardium , Pathology , Myocytes, Cardiac , Pathology , Myosin Heavy Chains , Natriuretic Peptide, Brain , Nonmuscle Myosin Type IIB , Proto-Oncogene Proteins c-akt , Rats
13.
Article in Chinese | WPRIM | ID: wpr-828147

ABSTRACT

Calnexin is a lectin-like molecular chaperone protein on the endoplasmic reticulum, mediating unfolded protein responses, the endoplasmic reticulum Ca homeostasis, and Ca signals conduction. In recent years, studies have found that calnexin plays a key role in the heart diseases. This study aims to explore the role of calnexin in the activation of cardiac fibroblasts. A transverse aortic constriction (TAC) mouse model was established to observe the activation of cardiac fibroblasts , and the cardiac fibroblasts activation model was established by transforming growth factor β1 (TGFβ1) stimulation. The adenovirus was respectively used to gene overexpression and silencing calnexin in cardiac fibroblasts to elucidate the relationship between calnexin and cardiac fibroblasts activation, as well as the possible underlying mechanism. We confirmed the establishment of TAC model by echocardiography, hematoxylin-eosin, Masson, and Sirius red staining, and detecting the expression of cardiac fibrosis markers in cardiac tissues. After TGFβ1 stimulation, markers of the activation of cardiac fibroblast, and proliferation and migration of cardiac fibroblast were detected by quantitative PCR, Western blot, EdU assay, and wound healing assay respectively. The results showed that the calnexin expression was reduced in both the TAC mice model and the activated cardiac fibroblasts. The overexpression of calnexin relieved cardiac fibroblasts activation, in contrast, the silencing of calnexin promoted cardiac fibroblasts activation. Furthermore, we found that the endoplasmic reticulum stress was activated during cardiac fibroblasts activation, and endoplasmic reticulum stress was relieved after overexpression of calnexin. Conversely, after the silencing of calnexin, endoplasmic reticulum stress was further aggravated, accompanying with the activation of cardiac fibroblasts. Our data suggest that the overexpression of calnexin may prevent cardiac fibroblasts against activation by alleviating endoplasmic reticulum stress.

14.
Article in Chinese | WPRIM | ID: wpr-879210

ABSTRACT

The aim of the study is to identify the effects and underlying mechanisms of visfatin on inflammation and necroptosis in vascular endothelial cells. Human umbilical vein endothelial cells (HUVECs) were stimulated with visfatin or pretreated with Polyinosinic acid (LOX-1 inhibitor). By using the Western blot, RT-PCR, immunocytochemistry, enzyme-linked immunosorbent assay (ELISA), MTT and flow cytometry technique, the occurrence of inflammation and necroptosis in HUVECs were evaluated. Our results showed that 100 ng/mL visfatin significantly increased the mRNA and protein expression of monocyte chemotactic protein 1 (MCP-1) and LOX-1 after 24 hours' treatment in HUVECs. However, pretreatment with Polyinosinic acid could significantly reduce the expression of MCP-1 compared with visfatin group. Additionally, 100 ng/mL visfatin could induce the production of necrotic features and increase the mRNA expression of BMF (one of the markers of necroptosis), while pretreating with Polyinosinic acid markedly downregulated the mRNA expression of BMF gene and promoted the cell proliferation. These results indicate that visfatin might induce inflammation and necroptosis via LOX-1 in HUVECs, suggesting that visfatin plays a central role in the development of atherosclerosis.


Subject(s)
Cells, Cultured , Human Umbilical Vein Endothelial Cells , Humans , Inflammation/chemically induced , Necroptosis , Nicotinamide Phosphoribosyltransferase , Scavenger Receptors, Class E/genetics
15.
Chinese Journal of Neurology ; (12): 204-209, 2020.
Article in Chinese | WPRIM | ID: wpr-870786

ABSTRACT

Objective:To investigate the characteristics of phosphorylated α-synuclein (p-α-syn) deposition in skin nerve fibers and its potential as a peripheral biomarker for Parkinson′s disease (PD).Methods:Fifteen PD patients and 31 age-matched healthy controls were evaluated by Small-Fiber Neuropathy and Symptoms Inventory Questionnaire (SFN-SIQ), who were recruited in the Department of Neurology, the First Affiliated Hospital of Zhengzhou University from June 1, 2017 to August 31, 2018. PD patients were divided into two subgroups according to the main clinical manifestations: bradykinesia ( n=7) and resting tremor ( n=8), and the severity of the disease was evaluated by Honhn-Yahr classification, where 0 to 2.5 indicates early stage ( n=11) and 3.0 to 5.0 indicates middle to late stage ( n=4). Three-millimeter punch biopsies were taken from cervical seven paravertebral area and distal leg of PD patients, while the skin of the distal leg of healthy control group was only taken, followed by immunohistochemistry and double immunofluorescence staining. The intraepidermal nerve fiber density (IENFD) and the deposition characteristics of p-α-syn were studied. Results:P-α-syn immuosignals were observed in 12/15 PD patients while in none of the control subjects, distributed in shape of dots or thread in the subepithelial plexus, dermis nerve tracts, and/or in the nerve fibers innervating sweat gland, muscle arrector pilorum, small blood vessels or hair follicle. The positive rate of p-α-syn deposition in a single site was 6/15 of the distal leg, 7/15 of the cervical, and the total positive rate was 12/15. The IENFD of PD group was 6.85±1.94/mm, which was significantly lower than that of control group (10.45±3.70/mm, t=-3.303, P=0.002), and was negatively correlated with the SFN-SIQ ( r=-0.561, P=0.046). There was no statistically significant difference in the positive rate of p-α-syn deposition and IENFD between patients with tremor and bradykinesia, nor between patients at stage of Hoehn-Yahr 0-2.5 and 3.0-5.0. Conclusions:Cutaneous p-α-syn deposits in the nerve fibers of PD patients, with a significant decrease in IENFD. P-α-syn deposition in skin nerves may be an intrinsic peripheral pathological change of PD, and skin biopsy immunolabelling p-α-syn merits further study as a potential peripheral biomarker of in vivo PD diagnosis.

16.
Article in Chinese | WPRIM | ID: wpr-772510

ABSTRACT

Mandible is an important bone of the head and neck. Mandibular defects not only affect patient's face, but also impede patient's daily functions, such as chewing, speech, and so on. Fibular transplantation for mandibular reconstruction is the common method, which requests high accuracy of bone positioning and posture adjustment. Therefore, a robotic system for mandibular reconstruction surgery with fibula flaps was designed to assist surgeons to hold and locate bones, and the model comparison experiments were conducted. The results showed that the robotic system can assist surgeons for mandibular reconstruction to improve quality of surgery.


Subject(s)
Bone Transplantation , Methods , Reference Standards , Fibula , Transplantation , Humans , Mandible , General Surgery , Mandibular Reconstruction , Methods , Robotics , Reference Standards , Surgery, Computer-Assisted
17.
Article in Chinese | WPRIM | ID: wpr-743519

ABSTRACT

Objective To analyze the clinical and molecular genetic characterizations of X-linked adrenal dysplasia congenita(AHC) onset in infant.Methods Seven children (from 7 families) with X-linked AHC who were admitted to the Department of Endocrinology,Genetics and Metabolism,Children's Hospital Affiliated to Zhengzhou University,from July 2012 to June 2017 were selected.All patients were screened for dosage-sensitive-sex reversal-adrenal hypoplasia congenital critical region on the X chromosome gene1 (DAX1/NR0B1) mutations.The clinical manifestation and laboratory examination were analyzed,their clinical characterizations were summarized.Results Seven patients were all male,the onset age of the patients were from after birth to 7 months old,and 4 patients (4 families) had a family history of X-linked recessive inheritance.The clinical manifestations were skin pigmentation [100.0% (7/7 cases)],vomiting [71.4% (5/7 cases)],no weight gain [57.1% (4/7 cases)] and poor spirit [28.6% (2/7 cases)].Laboratory tests showed that hyperkalemia and hyponatremia,increased coricotrophin,normal or decreased cortisol,17α-hydroxyprogesterone,progesterone,aldosterone and dehydroepiandrosterone.Testosterone levels increased in 5 patients.The abnormalities of adrenal glands imaging could be seen in 2 patients.Two patients were misdiagnosed as congenital adrenal cortical hyperplasia.Then the definitive diagnosis were made by genetic test.DAX1/ NR0B1 gene mutations were found in all patients.Five patients were novel mutations (c.114_126del,c.872G > A,c.56delG,c.884T > G,c.1217delG).Conclusions The clinical manifestations of X-linked AHC with infant onset include pigmentation,poor spirit and growth retardation,which should be differentiated from congenital adrenal cortical hyperplasia.Hormone levels such as elevated blood 17α-hydroxyprogesterone and family history are the main identification points,and AHC cannot be excluded when testosterone level increases.Five novel mutations are found in this study,which enrich the gene database.

18.
Article in English | WPRIM | ID: wpr-772301

ABSTRACT

Autologous submandibular gland (SMG) transplantation has been proved to ameliorate the discomforts in patients with severe keratoconjunctivitis sicca. The transplanted glands underwent a hypofunctional period and then restored secretion spontaneously. This study aims to investigate whether autonomic nerves reinnervate the grafts and contribute to the functional recovery, and further determine the origin of these nerves. Parts of the transplanted SMGs were collected from the epiphora patients, and a rabbit SMG transplantation model was established to fulfill the serial observation on the transplanted glands with time. The results showed that autonomic nerves distributed in the transplanted SMGs and parasympathetic ganglionic cells were observed in the stroma of the glands. Low-dense and unevenly distributed cholinergic axons, severe acinar atrophy and fibrosis were visible in the patients' glands 4-6 months post-transplantation, whereas the cholinergic axon density and acinar area were increased with time. The acinar area or the secretory flow rate of the transplanted glands was statistically correlated with the cholinergic axon density in the rabbit model, respectively. Meanwhile, large cholinergic nerve trunks were found to locate in the temporal fascia lower to the gland, and sympathetic plexus concomitant with the arteries was observed both in the adjacent fascia and in the stroma of the glands. In summary, the transplanted SMGs are reinnervated by autonomic nerves and the cholinergic nerves play a role in the morphological and functional restoration of the glands. Moreover, these autonomic nerves might originate from the auriculotemporal nerve and the sympathetic plexus around the supplying arteries.


Subject(s)
Animals , Autonomic Pathways , Fascia , Female , Humans , Keratoconjunctivitis Sicca , General Surgery , Male , Models, Animal , Rabbits , Recovery of Function , Secretory Rate , Submandibular Gland , Transplantation , Transplantation, Autologous
19.
Chinese Journal of Stomatology ; (12): 519-523, 2018.
Article in Chinese | WPRIM | ID: wpr-810094

ABSTRACT

Objective@#To evaluate the accuracy and feasibility of a custom robot system guided by navigation for lateral skull base tumor biopsy.@*Methods@#Two cadaver heads were used, with iopamidol injected into different areas in the skull base and infratemporal region to imitate the tumor. Cone beam CT (CBCT) scanning was performed before operation. With image data transferred to the graphical user interface of the computer workstation, the "tumor" was segmented as the target. The needle trajectory was determined by selecting the skin entry point and the target point on the surgical planning software. Following point-based registration, the data was sent to the robot control unit. The needle was automatically inserted into the intended target by the robot guided by optical navigation. After the procedure was performed, the instantaneous data of needle tip position acquired by navigation system was sent back to the computer workstation for accuracy verification. Subsequently, after the needle was released, CBCT scanning was performed again, and the pre-and post-operative skull were superimposed. The position data of needle tip was acquired on the postoperative image and the accuracy was re-verified. The paired t-test was used to compare the differences in the accuracy calculated by intraoperative navigation and postoperative image fusion. The independent samples t-test was used to compare the accuracy between the cadavers. The Pearson correlation coefficients (r) was used to analyze correlation between the needle intervention accuracy and insertion depth.@*Results@#All 20 interventions were successfully performed. The mean deviation of the needle tip was (0.67±0.28) mm (measured by the navigation system) and (3.19±0.39) mm (measured by image fusion) respectively (t=-23.238, P<0.001). The comparison of accuracy test showed no significant difference between the cadavers (t=-1.116, P=0.279). Pearson correlation coefficients (r=0.714, P<0.001) showed the close correlation between the needle intervention accuracy and insertion depth. The mean insertion depth was (5.14±0.21) cm.@*Conclusions@#The experimental results show that the robot system is efficient and reliable. The navigation accuracy and the needle deflection are the most significant factors affecting robotic puncture procedures.

20.
Article in Chinese | WPRIM | ID: wpr-806156

ABSTRACT

Objective@#To study the effect of CS2 on dendritic cells (DCs) in the uterus and the expression of vascular endothelial growth factor (VEGF), vascular endothelial growth factor receptor(fms-like tyrosine kinase-1, Flt-1), and to explore the toxic mechanism of CS2-induced embryo implantation dysfunction.@*Methods@#The Kunming mice were randomly divided into control group,gestational day 4(GD4) exposure group and GD5 exposure group. The endpoints of each group(GD5, GD6, GD7) was set up according to their respective exposure time points. The mice in the exposure group were given intraperitoneal injection of CS2 at an injection dose of 631.4 mg/kg and the control group was given olive oil. The effect of CS2 on DCs in the uterus of pregnant mice was observed by flow cytometry. The levels of VEGF and Flt-1 were measured by Real-time quantitative polymerase chain reaction (qPCR) and enzyme-linked immunosorbent assay (ELISA).@*Results@#In the GD4 and GD5 exposure groups, the number of DCs in the uterus of pregnant mice decreased at all endpoints and the GD5 endpoint in the GD4 exposure group decreased by 21%(P=0.039), when compared with the control group. In the GD4 exposure group, the levels of VEGF mRNA and protein in the uterus of the pregnant mice were 79% and 30% lower than those in the control group, respectively (P=0.03、P=0.017); the levels of Flt-1 mRNA and protein at the endpoints of GD6 and GD7 in the uterus decreased by 54%, 36%, 60% and 56%, respectively, when compared with the control group(P=0.017、P=0.012、P=0.004、P=0.007). In the GD5 exposure group, the levels of VEGF mRNA and protein in the uterus of pregnant mice at the endpoint of GD7 decreased by 62% and 36%, when compared with the control group (P=0.005、P=0.035); the levels of Flt-1 mRNA and protein in the uterus at the endpoint of GD7 decreased by 60% and 44%, respectively, when compared with the control group (P=0.004、P=0.009).@*Conclusion@#CS2 reduced the number of DCs in the uterus of pregnant mice, and affected the non-immune function of DCs, which affected uterine angiogenesis, this may be one of the mechanisms of CS2-induced embryo implantation dysfunction.

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