Humans ; Lichen Planus, Oral ; psychology

Objective To investigate the effects of sevoflurane pretreatment on renal ischemia-reperfusion (I/R)-induced apoptosis in kidney in rats. Methods Thirty pathogen-free male SD rats weighing 220-260 g were randomized into 3 groups (n=10 each):group control (group C);group I/R and group sevoflurane(group S). Renal I/R was induced by clamping the left renal pedicle for 45 min in I/R and S groups. In group S inhalation of 2.2% sevoflurane in O2 was started at 30 min before operation and maintained throughout the experiment.Venous blood samples were taken at 3 h of reperfusion for determination of serum BUN and Cr concentrations. The animals were then sacrificed and the left kidneys were removed for microscopic examination, detection of apoptosis(by TUNEL)and determination of heme oxygenase-1(HO-1) mRNA and protein expression (by RT-PCR and Western blot).Results Renal I/R significantly increased serum BUN and Cr concentrations, apoptotic index(percentage of apoptotic cells) and the severity of necrosis of renal proximal convoluted tubules (0=normal,4=necrosis of whole segment of proximal convoluted tubules).Sevoflurane inhalation attenuated the I/R-induced changes mentioned above.HO-1 mRNA and protein expression was up-regulated by I/R and HO-1 mRNA expression was further up-regulated by sevoflurane inhalation.Conclusion Sevoflurane pretreatment can protect kidney against I/R injury by attenuating cell apoptosis.Up-regulation of HO-1 mRNA expression may be involved in the mechanism.

Objective To investigate the awaken effect of naloxon on dexmedetomidine anesthetized mice and its mechanism. Methods Thirty Kunming mice of clean grade were randomly divided into 3 groups which included NAL group (Naloxon group), ATI group(Atipamezole group)and NS group (Normal Saline group). All groups were given dexme?detomidine 1 mg·kg-1 intraperitoneally. Naloxon 2 mg·kg-1, atipamezole 2 mg·kg-1 and normal saline 10 mL·kg-1 were ran?domly given intraperitoneally to the NAL, ATI and NS group respectively 90 minutes after dexmedetomidine administration. At timepoints prior to dexmedetomidine administration and 5, 15, 30, 60, 90, 95, 105, 120, 180 minutes after it, the sedative and analgesic effects besides recovery time (based on restore of righting reflex loss) were assessed. Results Sedation and analgesia effects became apparent within 5 minutes, and peaked at approximately 60 minutes then spontaneously recovered at 180 minutes after injection of dexmedetomidine. The sedative and analgesic effects were reduced in both ATI and NAL groups. Compared with ATI group, the sedation scores were higher at 95, 105 and 120 minutes after dexmedetomidine admin?istration than those in NAL group (P<0.05) but the scores were not statistically significant at 180 minutes between these two groups. Compared with NS group, the sedation scores were lower at time points of 95, 105, 120 and 180 minutes than those in NAL group (P>0.05). The analgesic scores were not statistically significant at time points of 95, 105, 120 and 180 min?utes between NAL group and ATI group, but they were lower in NAL group compared with NS group at timepoints of 95, 105 and 120 minutes (P>0.05). The recovery time in ATI and NAL group were shorter than that in NS group (F=1 793.368, P<0.05), but it showed no statistical difference between ATI group and NAL group (P>0.05). Conclusion Naloxone had a certain awaken effect on dexmedetomidine anesthetized mice.

Objective To study the changes in miRNAs expression in the exosomes of human umbilical vein endothelial cells(HUVECs) after 60 Co γ-rays expose using microRNA(miRNA) chips and bioinformatics techniques so as to provide new clues to the mechanism of radiation-induced vascular tissue injury and its bystander effects.Methods HUVECs exosomes were collected in the control and 4 Gy irradiated cells by ultra-high-speed centrifugation,and further confirmed using transmission electron microscopy (TEM) and Western blotting of exosomes biomarkers.miRNA microarray was used to analyze miRNA expression profiles of exosomes and cells.Also,real-time quantitative PCR(qRT-PCR) was used to verify differentially expressed miRNAs,and the miRDB and TargetScan were performed to predict the target genes of the differentially expressed miRNAs.Bioinformatics analysis was performed using DAVID,KEGG and other online tools.Results Compared with the control exosomes from non-irradiated HUVECs,miRNA microarray analysis revealed that 5 up-regulated,and 13 down-regulated miRNAs were identified in the exosomes from HUVECs at 0.5 h after 4 Gy-irradiation,and 16 up-regulated and 5 down-regulated miRNAs at 2 h after 4 Gy-irradiation.Moreover,38 and 85 miRNAs were differentially expressed respectively in the HUVECs at 0.5 h and 2 h after radiation.The difference was statistically significant(P<0.01).The results of bioinformatics showed that these miRNAs might exert the radiation-induced bystander effect (RIBE) by regulating MAPK signal pathways,RAS and PI3K-Akt signal pathways.Conclusion The ionizing radiation injury significantly alters the components and expression levels of exosomal miRNAs,which play important roles in regulating the signal pathways in response to radiation.

OBJECTIVETo tentatively establish a diagnosis and treatment mode for effectively controlling the progress of cerebral microlesions (CM) and preventing the incidence of cerebral infarction (CI) by comparing different intervention modes for treating CM.

METHODSUsing a prospective, nonrandomized, controlled trial, 408 subjects with multiple CM were assigned to the Chinese medical pharmacy intervention group (Group A, 100 case), the aspirin intervention group (Group B, 104 cases), the negative control group (Group C, 100 cases), and the non-intervention group (Group D, 104 cases). No intervention was given to those in Group D. Patients in the other 3 groups were intervened by life style and routine therapies of vasculogenic risk factors. Those in Group A took Guizhi Fuling Pill (GFP) and earthworm powder additionally. Those in Group B took aspirin additionally. They were routinely followed-up. The CM, the changes of vasculogenic risk factors, and the incidence rate of CI were compared among the 4 groups.

RESULTSThe total effective rate of CM was 66.67% in Group A, obviously higher than that of Group B (52.32%), Group C (42.86%), and Group D (37.04%), respectively. It was obviously higher in Group B than in Group D, showing statistical difference (P <0.01, P <0.05). After treatment, the serum levels of LDL-C, TC, and TG were obviously lower in Group A than in Group B (P <0.05); the serum levels of LDL-C and TC were obviously lower in Group A than in Group C (P <0.01); the systolic pressure was obviously lower in Group A than in Group D (P <0.05). The systolic pressure and the serum TC level were obviously lower in Group C than in Group D (P <0.05). The incidence rate of CI was 2.17% (2/92 cases) in Group A, obviously lower than that of Group C (11.36% ,10/88 cases) and Group D (14.44%, 13/90 cases), showing statistical difference (P <0.05). But there was no statistical difference between Group A and Group B (6.74% ,6/89 cases) (P >0.05).

CONCLUSIONSGFP combined earthworm powder could treat CM, control vasculogenic risk factors, and finally prevent the incidence of CI. Standard Chinese medical intervention mode showed the optimal effects in treating CM and preventing the incidence of CI, and perhaps it could be spread clinically.

Adult ; Aged ; Aged, 80 and over ; Aspirin ; therapeutic use ; Brain ; pathology ; Cerebral Infarction ; drug therapy ; pathology ; prevention & control ; Drugs, Chinese Herbal ; therapeutic use ; Female ; Humans ; Male ; Middle Aged ; Phytotherapy ; Prospective Studies ; Risk Factors ; Treatment Outcome

OBJECTIVETo investigate the effects of long-term hormone replacement therapy (HRT) on the breasts of postmenopausal women using mammary ultrasonography.

METHODSAn open randomized clinical study was designed. The percutaneous estradiol gel was used in a cyclic regimen combined with micronized progesterone (MP) or medroxyprogesterone acetate (MPA). Sixty healthy women (natural menopause for 1 to 5 years) were recruited and divided into four groups according to the dosage of estrogen and two kinds of progestin. All were given for 25 days per month. Mammary ultrasonography was used to observe breast glandular section thickness, breast duct width, the morphology of lobular unit and the blood flow of color Doppler imaging at baseline and every year from the second to seventh year of HRT. The serum estradiol was also measured from the 15th to 25th day of the cycle. Breast pain was recorded by the subjects.

RESULTS(1) The breast glandular section thickness after HRT was larger than that of before HRT. The breast glandular section thickness became larger gradually over time while the breast duct width became smaller over time. The breast duct width of the fifth year of HRT was significantly different from that of the sixth year (P < 0.05). (2) Twenty-two persons had new breast structure changes after HRT, and the accumulated incidence was 41.5%. New solid lesions formation occurred in five subjects (8.3%) and new cyst formation occurred in one subject (1.7%). After the second year of HRT, the serum estradiol level of the subjects with breast structure changes was higher than that of without breast structure changes and in the sixth year of HRT, and the difference was significant (P < 0.05). After the second year of HRT, the breast glandular section thickness of the subjects with breast structure changes was larger than that of without breast structure changes and in the fifth and sixth year of HRT, the difference was significant (P < 0.05). (3) After HRT, the serum estradiol level of subjects with mastalgia was higher than that of without mastalgia and in the second and sixth follow-up year, the difference was significant (P < 0.05).

CONCLUSIONSThere is an increasing trend of the percentage of glandular tissues of the breast after HRT. There is an increasing trend of the serum estradiol level and the breast glandular section thickness among the subjects with the breast structure changes; there is an increasing trend of the serum estradiol level among the subjects with mastalgia. Mammary ultrasonography can be used to monitor breast structure changes and breast lesions during HRT.

Aged ; Breast ; pathology ; Estradiol ; therapeutic use ; Estrogen Replacement Therapy ; adverse effects ; Female ; Humans ; Medroxyprogesterone Acetate ; therapeutic use ; Menopause ; Middle Aged ; Time Factors ; Ultrasonography, Mammary

OBJECTIVETo objectively assess the clinical efficacy and safety of a new Pulian Ointment (, NPLO) in treating psoriasis of blood-heat syndrome of Chinese medicine.

METHODSA total of 108 patients with psoriasis of blood-heat syndrome were equally assigned, using a randomizing digital table, to the test group treated externally with NPLO and the control group treated with placebo; the medication was done using a singleblinded method twice a day. Meanwhile, all patients received by oral intake a conventional Chinese decoction for clearing heat and cooling blood; the therapeutic course was 4 weeks for both groups. The therapeutic efficacy, changes in the Psoriasis Area and Severity Index (PASI) score and various aspects of the lesion, including scaly eruption, erythema, infiltration, size, score of itching as well as adverse reactions were observed.

RESULTSThe trial was completed in 100 patients, 51 in the test group and 49 in the control group. The remarkably effective rate was 45.10% and the total effective rate was 84.31% in the test group, which were significantly higher than those in the control group, 12.24% and 51.02%, respectively, showing a significant difference between groups (P<0.01). The test group also showed better effects in the improvement of the PASI score of the lesions and scores on erythema, infiltration, size of lesion as well as itching. No adverse event was found in either group.

CONCLUSIONNPLO is a Chinese remedy for the external treatment of psoriasis of the blood-heat syndrome with a reliable therapeutic efficacy and good safety.

Adult ; Drugs, Chinese Herbal ; therapeutic use ; Female ; Humans ; Male ; Middle Aged ; Ointments ; Psoriasis ; drug therapy ; Syndrome

Objective:To analyze the application effects of ultrasound-guided fascia illiaca compartment block (FICB) and continuous adductor canal block (CACB) on analgesia after knee arthroplasty.Methods:84 patients undergoing total knee arthroplasty (TKA) in Department of Anesthesiology, Orthopaedic Hospital of Sichuan, from May 2016 to April 2018 were randomly divided into observation group and control group, 42 cases in each group. The observation group was given ultrasound-guided FICB. The control group was given ultrasound-guided CACB. The postoperative analgesia effects [visual analogue scale (VAS) in rest and exercise states], major neurosensory block rate, stress response (cortisol, glucose level), muscle strength of quadriceps femoris and complications in the two groups were compared.Results:There was no significant difference in VAS scores at rest stage between the two groups at any time point after operation ( P>0.05). The VAS scores at exercise state of the observation group were lower than those of the control group at 12 h, 24 h and 48 h after operation ( P<0.01). The block rate of lateral femoral cutaneous nerve in the observation group was higher than that in the control group at 5 min, 10 min, and 30 min after block ( P<0.01). There was no significant difference in the block rates of femoral nerves between the two groups at each above time point ( P>0.05). The levels of blood cortisol and blood glucose in the observation group were significantly lower than those in the control group at 24 h and 48 h after operation ( P<0.05). The muscle strength of quadriceps femoris in the observation group was lower than that in the control group at 24 h and 48 h after operation ( P<0.01). There was no significant difference in the incidence of complications between the two groups ( P>0.05). Conclusions:Both FICB and CACB can significantly improve resting pain and femoral nerves in patients after total knee arthroplasty. FICB has advantages in blocking lateral femoral cutaneous nerve, controlling postoperative exercise pain and reducing stress response, while CACB has better effects on improving muscle strength of quadriceps femoris. The safety of the two groups is comparable. And each has its own advantages and disadvantages.

Background: and Purpose We aimed to determine the clinical features of Miller Fisher syndrome (MFS) in southern China and compare them with those presenting in other countries. Methods: We collected the medical records of patients diagnosed with MFS during 2013–2016.We analyzed the age, sex, onset season, precursor events, clinical symptoms and signs, findings of nerve conduction studies (NCS), cerebrospinal fluid (CSF), therapeutic remedies, nadir time, and length of hospital stay of patients with MFS in southern China. We concurrently compared the differences between urban and rural areas and between patients with incomplete ophthalmoplegia (IO) and complete ophthalmoplegia (CO). Results: The study enrolled 72 patients: 36 from rural areas and 36 from urban areas, and 50 males and 22 females. The mean age at onset was 47.72 years, and 30 (41.7%) and 21 (29.2%) patients developed MFS in spring and winter, respectively. The typical triad of ophthalmoplegia, ataxia, and areflexia was observed in 50 (69.4%) patients. A history of upper respiratory tract infection 1 week before onset was found in 52.8% of the patients, while 5.6% experienced gastrointestinal infections and 48 (73.8%) exhibited albuminocytological dissociation in the CSF study. Only 26 (36.1%) patients presented abnormalities in NCS. Moreover, restricted outward eyeball movement presented in 83.5% of the patients with classic MFS and acute ophthalmoplegia, and bilateral symmetrical ophthalmoplegia presented in 64.2%. With the exception of the higher proportion of NCS abnormalities in urban areas (47.2% vs. 25.0%), urban and rural differences were insignificant regarding sex ratio, age at onset, high-incidence season, precursor events, disease characteristics, and albuminocytological dissociation in the CSF. Furthermore, patients with CO were older than those with IO (64.53±7.69 vs. 43.19±14.40 years [mean±standard deviation], p<0.001). Conclusions The patients with MFS were mostly male and middle-aged, and most presented in winter and (especially) spring. More than half of the patients had clear precursor events, most of which were classic MFS with the typical triad. More than 70% of the patients presented albuminocytological dissociation in the CSF. NCS abnormalities were uncommon in MFS. The age at onset was lower in patients with IO than in patients with CO; bilateral symmetrical extraocular muscle paralysis was the most common symptom, and the external rectus was the most frequently involved muscle.

OBJECTIVETo study the prevalence of hepatitis C virus (HCV) infection and characteristics on molecular biology related to HCV among patients who were enrolled in a Methadone maintenance clinic in Wuhan.

METHODSSerum samples from 332 injection drug users (IDUs) were obtained and anti-HCV IgG was detected by enzyme linked immunosorbrent assay(ELISA), together with 86 anti-HCV positive specimens genotyped. A reverse transcriptase-polymerase chain reaction (RT-nPCR) assay using conserved primers deduced from the core-envelopel (C-E1) region of the HCV genome was employed to amplify a 474 bp fragment. Phylogenetic analysis of the C-E1 sequences was conducted by direct sequencing of the RT-nPCR products and alignment with determined by nucleotide sequencing followed by composition of a phylogenetic tree.

RESULTSThere were 313 cases (94.3%) appeared positive anti-HCV IgG in the 332 patients from a Methadone maintenance clinic in Wuhan. It was demonstrated that there were four different subtypes of HCV in that clinic in Wuhan, including 6a--71 cases (82.5%), 3b--7 cases (8.2%), 1a--5 cases (5.8%) and 1b--3 cases (3.5%).

CONCLUSIONInfection of 6a genotype HCV was predominant in patients from the Methadone maintenance clinic in Wuhan, followed by HCV 3b, 1a and 1b.

Adult ; Antibodies, Viral ; analysis ; China ; Enzyme-Linked Immunosorbent Assay ; Female ; Genotype ; Hepacivirus ; classification ; genetics ; Humans ; Male ; Methadone ; therapeutic use ; Middle Aged ; Phylogeny ; Reverse Transcriptase Polymerase Chain Reaction ; Substance Abuse Treatment Centers ; Substance-Related Disorders ; drug therapy ; rehabilitation ; Young Adult